User contributions
(newest | oldest) View (newer 500 | older 500) (20 | 50 | 100 | 250 | 500)
- 12:57, 18 November 2010 (diff | hist) . . (+316) . . Commuter
- 18:21, 20 October 2010 (diff | hist) . . (+375) . . User talk:Oscarlevin
- 18:17, 20 October 2010 (diff | hist) . . (+2) . . MediaWiki:Sidebar
- 18:17, 20 October 2010 (diff | hist) . . (0) . . m Help:Ways to contribute (moved Help:How to contribute to Help:Ways to contribute)
- 18:17, 20 October 2010 (diff | hist) . . (+37) . . N Help:How to contribute (moved Help:How to contribute to Help:Ways to contribute) (current)
- 18:16, 20 October 2010 (diff | hist) . . (+44) . . MediaWiki:Sidebar
- 18:15, 20 October 2010 (diff | hist) . . (0) . . m Help:Ways to contribute (moved MathPuzzleWiki:How to contribute to Help:How to contribute: Make the page easier to locate)
- 18:15, 20 October 2010 (diff | hist) . . (+36) . . N MathPuzzleWiki:How to contribute (moved MathPuzzleWiki:How to contribute to Help:How to contribute: Make the page easier to locate) (current)
- 08:25, 18 October 2010 (diff | hist) . . (+224) . . User talk:Oscarlevin
- 08:05, 18 October 2010 (diff | hist) . . (+283) . . User talk:Oscarlevin
- 08:02, 18 October 2010 (diff | hist) . . (-7,008) . . MediaWiki:Common.js (Undo revision 548 by Oscarlevin (talk)) (current)
- 08:01, 18 October 2010 (diff | hist) . . (+7,412) . . MediaWiki:Common.js (Undo revision 550 by Oscarlevin (talk))
- 20:33, 17 October 2010 (diff | hist) . . (-2) . . MediaWiki:Sidebar
- 20:32, 17 October 2010 (diff | hist) . . (+63) . . MediaWiki:Sidebar
- 20:30, 17 October 2010 (diff | hist) . . (-36) . . MediaWiki:Sidebar
- 20:29, 17 October 2010 (diff | hist) . . (-7,412) . . MediaWiki:Common.js
- 20:25, 17 October 2010 (diff | hist) . . (+8) . . MediaWiki:Sidebar
- 20:22, 17 October 2010 (diff | hist) . . (+7,008) . . MediaWiki:Common.js
- 20:07, 14 October 2010 (diff | hist) . . (+1,536) . . N Help:Hints, answers and solutions (Created page with 'Puzzles are meant to be puzzled over. Sometimes though, a hint, or even a solutions is necessary, so when appropriate, these can be added to a puzzle page. To avoid unwanted sp...')
- 19:49, 14 October 2010 (diff | hist) . . (+4) . . Light bulb (current)
- 19:48, 14 October 2010 (diff | hist) . . (+384) . . Light bulb
- 11:30, 14 October 2010 (diff | hist) . . (+36) . . Help:Editing
- 11:28, 14 October 2010 (diff | hist) . . (+5) . . Help:Editing
- 11:26, 14 October 2010 (diff | hist) . . (+170) . . Help:Editing
- 11:09, 14 October 2010 (diff | hist) . . (+178) . . Talk:Five pirates
- 11:07, 14 October 2010 (diff | hist) . . (+231) . . Five pirates
- 20:03, 13 October 2010 (diff | hist) . . (+992) . . User talk:Oscarlevin
- 19:46, 13 October 2010 (diff | hist) . . (-2) . . MediaWiki:Movepage-moved (current)
- 19:43, 13 October 2010 (diff | hist) . . (0) . . m Help:Ways to contribute (moved MathPuzzleWiki:Contribution guide to MathPuzzleWiki:How to contribute)
- 19:43, 13 October 2010 (diff | hist) . . (+46) . . N MathPuzzleWiki:Contribution guide (moved MathPuzzleWiki:Contribution guide to MathPuzzleWiki:How to contribute) (current)
- 19:41, 13 October 2010 (diff | hist) . . (+56) . . Help:Ways to contribute
- 19:40, 13 October 2010 (diff | hist) . . (+1,806) . . N Help:Ways to contribute (Created page with 'If you are interested in contributing to the Math Puzzle Wiki, but don't know what to do, here are some ideas: # Add a new puzzle. If you have a favorite brain teaser or math p...')
- 08:18, 12 October 2010 (diff | hist) . . (+982) . . User talk:Oscarlevin
- 20:07, 11 October 2010 (diff | hist) . . (+67) . . N User talk:Test1 (Created page with 'Testing ~~~~') (current)
- 20:06, 11 October 2010 (diff | hist) . . (-2) . . MediaWiki:Youhavenewmessages (current)
- 20:00, 11 October 2010 (diff | hist) . . (+19) . . N MediaWiki:Youhavenewmessages (Created page with 'You have \$1 (\$2).')
- 19:59, 11 October 2010 (diff | hist) . . (+102) . . N MediaWiki:Undelete-show-file-confirm (Created page with 'Are you sure you want to view the deleted revision of the file "<nowiki>\$1</nowiki>" from \$2 at \$3?')
- 19:57, 11 October 2010 (diff | hist) . . (+1) . . MediaWiki:Enotif body
- 19:56, 11 October 2010 (diff | hist) . . (+788) . . N MediaWiki:Enotif body (Created page with 'Dear $WATCHINGUSERNAME, The {{SITENAME}} page \$PAGETITLE has been \$CHANGEDORCREATED on \$PAGEEDITDATE by \$PAGEEDITOR, see \$PAGETITLE_URL for the current revision. \$NEWPAG...')
- 19:55, 11 October 2010 (diff | hist) . . (+81) . . N MediaWiki:Emailuserfooter (Created page with 'This e-mail was sent by \$1 to \$2 by the "E-mail user" function at {{SITENAME}}.')
- 19:55, 11 October 2010 (diff | hist) . . (+73) . . N MediaWiki:Enotif subject (Created page with '{{SITENAME}} page \$PAGETITLE has been \$CHANGEDORCREATED by \$PAGEEDITOR')
- 19:53, 11 October 2010 (diff | hist) . . (+46) . . N MediaWiki:Movepage-moved (Created page with '<big>'''"\$1" has been moved to "\$2"'''</big>')
- 19:52, 11 October 2010 (diff | hist) . . (+40) . . N MediaWiki:Xml-error-string (Created page with '\$1 at line \$2, col \$3 (byte \$4): \$5')
- 19:51, 11 October 2010 (diff | hist) . . (+42) . . N MediaWiki:Siteusers (Created page with '{{SITENAME}} {{PLURAL:\$2|user|users}} \$1')
- 19:51, 11 October 2010 (diff | hist) . . (+31) . . N MediaWiki:Patrol-log-line (Created page with 'marked \$1 of \$2 patrolled \$3')
- 19:51, 11 October 2010 (diff | hist) . . (+8) . . N MediaWiki:Widthheight (Created page with '\$1×\$2')
- 19:50, 11 October 2010 (diff | hist) . . (+39) . . N MediaWiki:Widthheightpage (Created page with '\$1×\$2, \$3 {{PLURAL:\$3|page|pages}}')
- 19:49, 11 October 2010 (diff | hist) . . (+405) . . N MediaWiki:Confirmemail body (Created page with 'Someone, probably you, from IP address \$1, has registered an account "\$2" with this e-mail address on {{SITENAME}}. To confirm that this account really does belong to you and ...')
- 19:48, 11 October 2010 (diff | hist) . . (+41) . . N MediaWiki:Trackbackexcerpt (Created page with '; \$4 \$5: [\$2 \$1]: <nowiki>$3</nowiki>')
- 19:48, 11 October 2010 (diff | hist) . . (+20) . . N MediaWiki:Trackback (Created page with '; \$4 \$5: [\$2 \$1]')
- 19:47, 11 October 2010 (diff | hist) . . (+172) . . N MediaWiki:Confirmrecreate (Created page with 'User \$1 (talk) deleted this page after you started editing with reason: : ''\$2'' Please confirm that you really want to recreate this page.')
- 19:45, 11 October 2010 (diff | hist) . . (+110) . . N MediaWiki:Configure-ext-ext-dependencies (Created page with ''''Warning:''' this extension requires the following {{PLURAL:\$2|extension|extensions}} to be activated: \$1.') (current)
- 19:45, 11 October 2010 (diff | hist) . . (+18) . . N MediaWiki:Configure-old-summary (Created page with '\$1 by \$2 \$4 \$3') (current)
- 19:44, 11 October 2010 (diff | hist) . . (+74) . . N MediaWiki:Configure-ext-ext-dependency-err (Created page with ''''Error:''' the \$1 extension requires the \$2 extension to be activated.') (current)
- 19:43, 11 October 2010 (diff | hist) . . (+32) . . N MediaWiki:Emailccsubject (Created page with 'Copy of your message to \$1: \$2')
- 19:43, 11 October 2010 (diff | hist) . . (+52) . . N MediaWiki:Emailauthenticated (Created page with 'Your e-mail address was authenticated on \$2 at \$3.')
- 13:41, 11 October 2010 (diff | hist) . . (+252) . . User talk:Oscarlevin
- 13:32, 11 October 2010 (diff | hist) . . (+12) . . Seven orbs (current)
- 13:30, 11 October 2010 (diff | hist) . . (+1,072) . . Seven orbs
- 13:25, 11 October 2010 (diff | hist) . . (+360) . . User talk:Oscarlevin
- 13:18, 11 October 2010 (diff | hist) . . (+412) . . Sharing water
- 13:11, 11 October 2010 (diff | hist) . . (+257) . . N User talk:Zerrakhi (Created page with '==Welcome== Thanks for your messages: I'm looking into both those issues. Nice to have someone other than myself contributing. I'm pretty new at this wiki stuff, so please bea...') (current)
- 13:06, 11 October 2010 (diff | hist) . . (+465) . . User talk:Oscarlevin
- 13:38, 23 September 2010 (diff | hist) . . (+478) . . N Checkerboard and dominoes (Created page with '==Puzzle== A regular checker board has 64 squares (arranged in an 8 by 8 square). You happen to have a set of dominoes, each of which can cover exactly 2 squares on the checker...')
- 12:57, 8 September 2010 (diff | hist) . . (+694) . . N Three digit magic (Created page with 'Saw this amazing trick in one of Smullyan's books. ==Puzzle== "Think of any three digit number," says the magician. "Now write that number down twice. So if you thought of 12...')
- 09:07, 3 September 2010 (diff | hist) . . (+476) . . N Next number (Created page with 'Saw this on on [http://www.iqtestexperts.com/brainteasers/ this brainteasers site] ==Puzzle== What is the next number in the sequence: 938987, 277256, 141430, ... ==Meta-puzzl...')
- 13:09, 30 August 2010 (diff | hist) . . (+798) . . N Bags of gems (Created page with 'Here is another one I found in Smullian's book. ==Puzzle== You have ten bags of gems. Each bag contains three gems, which are either diamonds, rubies, or emeralds. As it happ...')
- 15:34, 26 August 2010 (diff | hist) . . (+695) . . N Probably blackjack (Created page with 'This is a classic probability puzzle. I just made up the story. ==Puzzle== You are playing Blackjack and are lucky enough to have a psychic parrot on your shoulder. You are d...')
- 12:39, 26 August 2010 (diff | hist) . . (+568) . . N Monk's walk (Created page with 'Here is an example of a velocity puzzle. ==Puzzle== Famed TV detective Monk leaves his house for a leisurely walk. He heads due north, walking 3 miles per hour (touching all t...')
- 12:22, 26 August 2010 (diff | hist) . . (+833) . . N Three guesses (Created page with 'This one is based on a puzzle in one of Smullyan's books. ==Puzzle== On the game show ''Wheel of Logic'' a contestant must choose one of three chests, numbered one, two, and th...') (current)
- 13:08, 23 August 2010 (diff | hist) . . (+3,117) . . Twelve weights
- 08:01, 21 August 2010 (diff | hist) . . (+988) . . N Eight options with six sides (Created page with 'This one is based on a problem of the week I saw [http://hilltop.bradley.edu/~delgado/potw/potw.html here]. ==Puzzle== The problem with great restaurants is they often have so ...')
- 08:01, 21 August 2010 (diff | hist) . . (+113) . . Meta:Links
- 07:59, 21 August 2010 (diff | hist) . . (+93) . . N Template:Bradley PoW (Created page with '[http://hilltop.bradley.edu/~delgado/potw/potw.html Bradley University's Problem of the Week]')
- 08:03, 20 August 2010 (diff | hist) . . (+29) . . Three prisoners (current)
- 13:12, 19 August 2010 (diff | hist) . . (+38) . . Flying trains
- 13:08, 19 August 2010 (diff | hist) . . (+926) . . N Flying trains (Created page with 'Here is the classic not-really-a-calculus puzzle. ==Puzzle== Towns A and B are connected by a single railroad track, exactly 210 miles long. One fateful day, at exactly 1:00pm...')
- 13:00, 19 August 2010 (diff | hist) . . (+17) . . Round trip winds
- 13:00, 19 August 2010 (diff | hist) . . (+540) . . N Jogging a hill (Created page with 'I think I originally heard this one on Car Talk. ==Puzzle== Sally has decided to go for a jog. At first she runs on completely flat ground, and then to the top of a hill. Then ...') (current)
- 16:28, 13 August 2010 (diff | hist) . . (+500) . . N Eight weights (Created page with 'Here is a puzzle I saw on someones problem of the week site. They had it phrased using batteries. Here is another version. ==Puzzle== You come across eight stones. You know ...')
- 06:32, 31 July 2010 (diff | hist) . . (+968) . . N Soda machine (Created page with 'This is a quite old puzzle, although this version was inspired by a recent post on [http://richardwiseman.wordpress.com/ Richard Wiseman's Blog]. ==Puzzle== You have an old sod...')
- 10:12, 22 July 2010 (diff | hist) . . (-3) . . Wrong address
- 10:11, 22 July 2010 (diff | hist) . . (+1,145) . . N Wrong address (Created page with 'Found this puzzle on pzzls.com ==Puzzle== Mr. House would like to visit his old friend Mr. Street, who is living in the main street of a small village. The main street has 50 h...')
- 06:55, 16 July 2010 (diff | hist) . . (+17) . . Meta:Links
- 06:54, 16 July 2010 (diff | hist) . . (+73) . . N Template:Mathcentral (Created page with '[http://mathcentral.uregina.ca/mp/ Problem of the Month] on Math Central.') (current)
- 06:50, 16 July 2010 (diff | hist) . . (+583) . . N Fill in the blanks (Created page with 'I've seen this puzzle a number of places, most recently as an old problem of the month on [http://mathcentral.uregina.ca/mp/previous2002/ Math Central] ==Puzzle== Complete the ...')
- 20:09, 13 July 2010 (diff | hist) . . (+38) . . N Template:Pzzls site (Created page with '[http://www.pzzls.com/ pzzls.com site]') (current)
- 20:08, 13 July 2010 (diff | hist) . . (+592) . . N Divisible by nine digits (Created page with 'I found this one on the {{pzzls site}} ==Puzzle== Find a number consisting of 9 digits in which each of the digits from 1 to 9 appears exactly once. This number should satisfy ...') (current)
- 14:30, 7 July 2010 (diff | hist) . . (-3) . . Girl, boy and dog
- 14:28, 7 July 2010 (diff | hist) . . (+821) . . N Girl, boy and dog (Created page with 'Found this one on {{mathsisfun}}. ==Puzzle== A girl, a boy and a dog are out for a walk. The girl walks at a constant speed of 4 miles per hour, and the boy at a constant spee...')
- 08:01, 5 July 2010 (diff | hist) . . (+59) . . Cannibals and missionaries
- 08:00, 5 July 2010 (diff | hist) . . (+786) . . N Farmer and the boat (Created page with 'Probably the best known example of a crossing puzzle. Good warm up to something more complicated like cannibals and missionaries. ==Puzzle== A farmer is traveling to the m...')
- 07:56, 5 July 2010 (diff | hist) . . (-13) . . Three couples
- 16:07, 2 July 2010 (diff | hist) . . (+1) . . Hotel change
- 16:06, 2 July 2010 (diff | hist) . . (+2) . . Hotel change
- 16:06, 2 July 2010 (diff | hist) . . (+861) . . N Hotel change (Created page with 'A classic arithmetic puzzle. More tricky than anything, but a nice example of the importance of careful thinking for word problems ==Puzzle== Three men checked into a hotel ro...')
- 12:25, 1 July 2010 (diff | hist) . . (+18) . . Three princesses
- 12:25, 1 July 2010 (diff | hist) . . (+2) . . Chests of logic 3
- 12:24, 1 July 2010 (diff | hist) . . (+21) . . Chests of logic 3
- 12:21, 1 July 2010 (diff | hist) . . (+66) . . N Template:Xkcd forum (Created page with '[http://forums.xkcd.com/viewforum.php?f=3 xkcd logic puzzle forum]') (current)
- 12:21, 1 July 2010 (diff | hist) . . (+2,380) . . N Three princesses (Created page with 'Found this one on the {{xkcd forum}}. I really like it. ==Puzzle== You are the most eligible bachelor in the kingdom, and as such the King has invited you to his castle so tha...')
- 09:58, 1 July 2010 (diff | hist) . . (+1,254) . . N Angels and demons (Created page with 'Here is a modification of a question asked on the [http://forums.xkcd.com/viewforum.php?f=3 xkcd logic puzzle forum]. I've modified it slightly so there is (I believe) an answer...')
- 07:19, 30 June 2010 (diff | hist) . . (+3,178) . . N Talk:Die Hard III (Created page with 'Joao Pedro Afonso Says: June 15, 2010 at 12:49 am | Reply Saturday, someone said “This puzzle is probably unique in mentioning the numbers 3, 4 and 5 but having nothing to do ...')
- 07:11, 29 June 2010 (diff | hist) . . (+850) . . N Monty Hall problem (Created page with 'A true classic, and probably the best example of how counter-intuitive conditional probability can be. ==Puzzle== You are on the game show ''Let's Make a Deal'' and host Monty ...')
- 18:35, 24 June 2010 (diff | hist) . . (+1,135) . . N Fair biased coin (Created page with 'Here is a puzzle based on an algorithm invented by John von Neumann. ==Puzzle== You and a friend have just discovered what appears to be a very valuable old coin. To determine...')
- 08:11, 16 June 2010 (diff | hist) . . (+249) . . Nine minute fuse
- 07:38, 10 June 2010 (diff | hist) . . (+63) . . N Category:Difficulty (Created page with 'These categories can be used to classify puzzles by difficulty.') (current)
- 07:37, 10 June 2010 (diff | hist) . . (+39) . . N Category:Easy puzzles (Created page with 'Good warm ups. Category:Difficulty') (current)
- 07:36, 10 June 2010 (diff | hist) . . (0) . . Ten thieves
- 07:36, 10 June 2010 (diff | hist) . . (+1,041) . . N Ten thieves (Created page with 'Here is a nice short easy puzzle. ==Puzzle== Ten thieves have just made off with 56 identical rare gemstones. They realize that it is impossible for each thief to receive an e...')
- 07:26, 10 June 2010 (diff | hist) . . (+1,108) . . N Wrong clocks (Created page with 'Saw this one on Professor Layton 2. ==Puzzle== To analogue clocks hang side by side on a wall. One of the clocks is slightly fast, the other slightly slow. One day at noon, y...')
- 10:09, 8 June 2010 (diff | hist) . . (+50) . . N Template:Car talk link (Created page with '[http://www.cartalk.com/content/puzzler/ Car Talk]') (current)
- 10:08, 8 June 2010 (diff | hist) . . (+1) . . Ten digit number (current)
- 10:07, 8 June 2010 (diff | hist) . . (+2) . . Ten digit number
- 10:06, 8 June 2010 (diff | hist) . . (+481) . . N Ten digit number (Created page with 'First saw this as a puzzle from {{cartalk link}}, where it is attributed to [http://en.wikipedia.org/wiki/Martin_gardner Martin Gardner]. == Puzzle == Find what is unique about...')
- 10:04, 8 June 2010 (diff | hist) . . (+365) . . N Template:Martin Gardner books (Created page with '[http://www.amazon.com/gp/redirect.html?ie=UTF8&location=http%3A%2F%2Fwww.amazon.com%2Fgp%2Fentity%2FMartin-Gardner%2FB000AP8X8G%3Fie%3DUTF8%26ref_%3Dsr%5Ftc%5F2%5F0%26qid%3D1274...')
- 10:04, 8 June 2010 (diff | hist) . . (-344) . . Meta:Links
- 19:34, 7 June 2010 (diff | hist) . . (+69) . . Category:Cryptarithmetic puzzles (current)
- 19:32, 7 June 2010 (diff | hist) . . (+66) . . Meta:Links
- 19:31, 7 June 2010 (diff | hist) . . (+190) . . N Template:Sideways Arithmetic (Created page with '[http://www.amazon.com/gp/product/0590457268?ie=UTF8&tag=matpuzwik-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=0590457268 Sideways Arithmetic From Wayside School] by L...') (current)
- 19:31, 7 June 2010 (diff | hist) . . (+25) . . Two EGGs
- 19:28, 7 June 2010 (diff | hist) . . (+49) . . Two EGGs
- 19:27, 7 June 2010 (diff | hist) . . (0) . . m Detective Merlin (moved Liars and Truthtellers to Detective Merlin)
- 19:27, 7 June 2010 (diff | hist) . . (+30) . . N Liars and Truthtellers (moved Liars and Truthtellers to Detective Merlin) (current)
- 19:26, 7 June 2010 (diff | hist) . . (-44) . . Seven orbs
- 19:19, 7 June 2010 (diff | hist) . . (+208) . . N Template:Smullyan riddle (Created page with '[http://www.amazon.com/gp/product/0156006065?ie=UTF8&tag=matpuzwik-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=0156006065 The Riddle of Scheherazade: And Other Amazing...') (current)
- 19:19, 7 June 2010 (diff | hist) . . (+119) . . Meta:Links
- 19:13, 7 June 2010 (diff | hist) . . (+49) . . Seven elevators
- 19:11, 7 June 2010 (diff | hist) . . (+29) . . N Category:Needs work (Created page with 'Category:Site maintenance') (current)
- 19:11, 7 June 2010 (diff | hist) . . (+30) . . N Category:Needs solution (Created page with 'Category: Site maintenance') (current)
- 19:10, 7 June 2010 (diff | hist) . . (+30) . . N Category:Needs math (Created page with 'Category:Site maintenance ') (current)
- 19:10, 7 June 2010 (diff | hist) . . (+5) . . Category:Needs hint (current)
- 19:09, 7 June 2010 (diff | hist) . . (+24) . . N Category:Needs hint (Created page with 'Category:Maintenance')
- 19:07, 7 June 2010 (diff | hist) . . (+65) . . Earings (current)
- 19:04, 7 June 2010 (diff | hist) . . (+77) . . Multiple locks
- 19:02, 7 June 2010 (diff | hist) . . (+37) . . Fuses
- 18:59, 7 June 2010 (diff | hist) . . (-737) . . Template:Averbach (current)
- 18:56, 7 June 2010 (diff | hist) . . (+37) . . Prom problem
- 16:05, 5 June 2010 (diff | hist) . . (+1,454) . . N Marble madness (Created page with 'Here is a puzzle I found on Maths is Fun. It is similar to the Five hats problem. ==Puzzle== Years ago, to puzzle his friends, a scientist gave one of four containers cont...')
- 12:59, 5 June 2010 (diff | hist) . . (+1,273) . . N Lying to the young (Created page with '==Puzzle== Alex, Brook, Cody, Dusty, and Erin recently found out that all of their birthdays were on the same day, though they are different ages. On their mutual birthday, the...') (current)
- 12:53, 5 June 2010 (diff | hist) . . (+516) . . N Fat travelers (Created page with 'Another nice crossing puzzle, as seen at Maths is Fun. == Puzzle == Four travelers (Al, Bob, Chris, and Zoe) come to a river and find an old boat, with a sign reading "Weight l...')
- 12:43, 5 June 2010 (diff | hist) . . (+667) . . N Fruit boxes (Created page with 'Here is a puzzle I saw on the Maths is Fun website. == Puzzle == You are on an island and there are three crates of fruit that have washed up in front of you. One crate contain...')
- 12:17, 4 June 2010 (diff | hist) . . (0) . . m Around the world (moved Fly around the world to Around the world)
- 12:17, 4 June 2010 (diff | hist) . . (+30) . . N Fly around the world (moved Fly around the world to Around the world) (current)
- 12:17, 4 June 2010 (diff | hist) . . (0) . . m Talk:Around the world (moved Talk:Fly around the world to Talk:Around the world)
- 12:17, 4 June 2010 (diff | hist) . . (+35) . . N Talk:Fly around the world (moved Talk:Fly around the world to Talk:Around the world) (current)
- 12:16, 4 June 2010 (diff | hist) . . (+331) . . Around the world
- 12:44, 3 June 2010 (diff | hist) . . (-274) . . Meta:Main Page
- 12:37, 3 June 2010 (diff | hist) . . (+14) . . Meta:Main Page
- 12:37, 3 June 2010 (diff | hist) . . (+566) . . Meta:Main Page
- 12:36, 3 June 2010 (diff | hist) . . (0) . . m Meta:Main Page (Protected "Meta:Main Page" ([edit=sysop] (indefinite) [move=sysop] (indefinite)))
- 12:29, 3 June 2010 (diff | hist) . . (+246) . . N Template:Professor Layton 2 (Created page with '[http://www.amazon.com/gp/product/B002AU0HZQ?ie=UTF8&tag=matpuzwik-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B002AU0HZQ Professor Layton and the Diabolical Box] - se...') (current)
- 12:27, 3 June 2010 (diff | hist) . . (+244) . . N Template:Professor Layton (Created page with '[http://www.amazon.com/gp/product/B000U5W3IW?ie=UTF8&tag=matpuzwik-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B000U5W3IW Professor Layton and the Curious Village] - f...') (current)
- 12:25, 3 June 2010 (diff | hist) . . (+72) . . Meta:Links
- 12:24, 3 June 2010 (diff | hist) . . (+218) . . N Template:Mindtrap (Created page with '[http://www.amazon.com/gp/product/B0014IZV74?ie=UTF8&tag=matpuzwik-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=B0014IZV74 Mind Trap] - a game with hundreds of puzzle c...') (current)
- 12:19, 3 June 2010 (diff | hist) . . (+46) . . Five digits and one
- 12:19, 3 June 2010 (diff | hist) . . (+512) . . N Five digits and one (Created page with 'Here is a nice place value puzzle I saw on the Maths is Fun website. == Puzzle == I am thinking of a five digit number. If you were to put a "1" at the end of the number you w...')
- 21:21, 31 May 2010 (diff | hist) . . (+378) . . N Six towns (Created page with 'Saw a puzzle like this on the Maths Is Fun site. Don't know the answer yet. ==Puzzle== Somewhere in the English countryside there are six towns. After a surveying trip, scien...') (current)
- 07:04, 30 May 2010 (diff | hist) . . (0) . . m Meta:Links (moved Mata:Links to Meta:Links)
- 07:02, 30 May 2010 (diff | hist) . . (+24) . . N Help:References (moved Help:References to Meta:Links) (current)
- 07:01, 30 May 2010 (diff | hist) . . (-5) . . MediaWiki:Sidebar
- 07:00, 30 May 2010 (diff | hist) . . (0) . . m Meta:Links (moved Help:References to Mata:Links)
- 06:52, 30 May 2010 (diff | hist) . . (+47) . . N MediaWiki:Rclinks (Created page with 'Show last \$1 changes in last \$2 days<br />\$3')
- 06:47, 30 May 2010 (diff | hist) . . (+44) . . N MediaWiki:Configure-ext-settings-dep-error (Created page with '\$1: required value: \$2, current value: \$3') (current)
- 06:46, 30 May 2010 (diff | hist) . . (+87) . . N MediaWiki:Showingresultsnum (Created page with 'Showing below {{PLURAL:\$3|'''1''' result|'''\$3''' results}} starting with #'''\$2'''.')
- 06:46, 30 May 2010 (diff | hist) . . (+93) . . N MediaWiki:Showingresults (Created page with 'Showing below up to {{PLURAL:\$1|'''1''' result|'''\$1''' results}} starting with #'''\$2'''.')
- 13:23, 28 May 2010 (diff | hist) . . (+8) . . Nine prisoners (current)
- 13:22, 28 May 2010 (diff | hist) . . (+8) . . Three prisoners
- 13:21, 28 May 2010 (diff | hist) . . (+8) . . Twelve weights
- 13:21, 28 May 2010 (diff | hist) . . (+8) . . Six weights
- 13:20, 28 May 2010 (diff | hist) . . (+8) . . Three logicians
- 13:20, 28 May 2010 (diff | hist) . . (+8) . . Green eyed dragons
- 13:19, 28 May 2010 (diff | hist) . . (+8) . . Forty thieves
- 13:19, 28 May 2010 (diff | hist) . . (+8) . . Prom problem
- 13:18, 28 May 2010 (diff | hist) . . (+1) . . High school play
- 13:18, 28 May 2010 (diff | hist) . . (+7) . . High school play
- 13:16, 28 May 2010 (diff | hist) . . (+27) . . Category:Weighing puzzles (current)
- 13:16, 28 May 2010 (diff | hist) . . (+32) . . Category:Lateral thinking (current)
- 13:15, 28 May 2010 (diff | hist) . . (+107) . . N Category:Solving techniques (Created page with 'Subcategories below are the various problem solving techniques needed in solving puzzles contained therein.') (current)
- 13:14, 28 May 2010 (diff | hist) . . (+60) . . N Category:Set theory (Created page with 'These puzzles relate to set theory Category:Math topics') (current)
- 13:13, 28 May 2010 (diff | hist) . . (+26) . . Category:Probability (current)
- 13:12, 28 May 2010 (diff | hist) . . (+32) . . Category:Pattern recognition (current)
- 13:11, 28 May 2010 (diff | hist) . . (+89) . . N Category:Organization (Created page with 'These puzzles require good organization skills to solve. Category:Solving techniques') (current)
- 13:10, 28 May 2010 (diff | hist) . . (-29) . . Ten bags of gold
- 13:09, 28 May 2010 (diff | hist) . . (+8) . . Prisoners in red hats
- 13:08, 28 May 2010 (diff | hist) . . (+27) . . Category:Lateral thinking
- 13:07, 28 May 2010 (diff | hist) . . (+24) . . Harry Potter and the hall of 100 doors
- 13:06, 28 May 2010 (diff | hist) . . (+108) . . N Category:Sequences (Created page with 'These puzzles are either about (or require knowledge of) sequences in mathematics. Category:Math topics') (current)
- 13:05, 28 May 2010 (diff | hist) . . (0) . . Frog staircase
- 13:04, 28 May 2010 (diff | hist) . . (-27) . . Milk and coffee
- 13:01, 28 May 2010 (diff | hist) . . (+92) . . N Category:Tricky puzzles (Created page with 'These puzzles might be especially challenging. They might require a leap of logic to solve.') (current)
- 13:00, 28 May 2010 (diff | hist) . . (+104) . . N Category:Site maintenance (Created page with 'These categories all pertain to site maintenance: to help clean up and improve the various puzzles here.') (current)
- 12:59, 28 May 2010 (diff | hist) . . (0) . . Category:Needs answer (current)
- 12:58, 28 May 2010 (diff | hist) . . (+189) . . N Category:Needs answer (Created page with 'These puzzles have been tagged as needing an answer. If you would like to provide an answer, please use the <nowiki>{{Answer| the answer}}<\nowiki> template. [[Category:Site ma...')
- 12:56, 28 May 2010 (diff | hist) . . (-2) . . Category:Geometry (current)
- 12:56, 28 May 2010 (diff | hist) . . (+72) . . N Category:Geometry (Created page with 'These puzzles illustrate ideas from geometry Category:Math subjects')
- 12:55, 28 May 2010 (diff | hist) . . (+88) . . N Category:Surprising answers (Created page with 'These puzzles have surprising, counterintuitive answers. Good for inspiring discussion.') (current)
- 12:54, 28 May 2010 (diff | hist) . . (+59) . . Category:Algorithms (current)
- 12:53, 28 May 2010 (diff | hist) . . (+27) . . Category:Measuring puzzles (current)
- 12:51, 28 May 2010 (diff | hist) . . (+46) . . N User:Oscarlevin (Created page with 'Founder and webmaster of the Math Puzzle Wiki.')
- 20:57, 27 May 2010 (diff | hist) . . (+26) . . Category:Pigeonhole principle
- 20:56, 27 May 2010 (diff | hist) . . (+26) . . Category:Optimization puzzles (current)
- 20:56, 27 May 2010 (diff | hist) . . (+26) . . Category:Liar puzzles (current)
- 20:55, 27 May 2010 (diff | hist) . . (+8) . . Two EGGs
- 20:55, 27 May 2010 (diff | hist) . . (+378) . . N Category:Cryptarithmetic puzzles (Created page with 'In Cryptarithmetic puzzles, we are given an arithmetic problem using letters instead of numbers. Each letter represents a single digit: 0 to 9. The goal is to determine which let...')
- 20:55, 27 May 2010 (diff | hist) . . (+8) . . Lean meat
- 20:54, 27 May 2010 (diff | hist) . . (+8) . . GO ON BOB
- 20:53, 27 May 2010 (diff | hist) . . (0) . . Nine weights
- 20:52, 27 May 2010 (diff | hist) . . (+8) . . Nine weights
- 20:52, 27 May 2010 (diff | hist) . . (+28) . . Chests of logic
- 20:51, 27 May 2010 (diff | hist) . . (+136) . . N Category:Logic puzzles (Created page with 'These are your classical logic puzzles. They require mostly logic to solve, and minimal other mathematics. Category:Puzzle types') (current)
- 20:50, 27 May 2010 (diff | hist) . . (+6) . . Category:Logic (current)
- 20:48, 27 May 2010 (diff | hist) . . (+25) . . Category:Induction (current)
- 20:48, 27 May 2010 (diff | hist) . . (+76) . . N Category:Short puzzles (Created page with 'These should not take too long. Short and sweet. Category:Puzzle types') (current)
- 20:47, 27 May 2010 (diff | hist) . . (-1) . . Category:Number theory (current)
- 20:47, 27 May 2010 (diff | hist) . . (+27) . . Category:Number theory
- 20:46, 27 May 2010 (diff | hist) . . (+39) . . N Category:Math topics (Created page with 'Topics covered by puzzles on this site.') (current)
- 20:45, 27 May 2010 (diff | hist) . . (+25) . . Category:Graph theory (current)
- 20:45, 27 May 2010 (diff | hist) . . (+26) . . Category:Crossing puzzles (current)
- 20:44, 27 May 2010 (diff | hist) . . (+286) . . Meta:Main Page
- 20:18, 27 May 2010 (diff | hist) . . (+21) . . Meta:Main Page
- 17:47, 27 May 2010 (diff | hist) . . (+8) . . Meta:Main Page
- 17:46, 27 May 2010 (diff | hist) . . (-10) . . Meta:Main Page
- 17:27, 27 May 2010 (diff | hist) . . (+27) . . Category:Velocity puzzles (current)
- 14:40, 27 May 2010 (diff | hist) . . (+49) . . N Category:Puzzle types (Created page with 'These are the various types of puzzles available.') (current)
- 14:39, 27 May 2010 (diff | hist) . . (+13) . . Meta:Main Page
- 14:38, 27 May 2010 (diff | hist) . . (+26) . . Category:Computer science (current)
- 14:37, 27 May 2010 (diff | hist) . . (+27) . . Category:Comparison puzzles (current)
- 14:37, 27 May 2010 (diff | hist) . . (-2) . . Category:Algebra (current)
- 14:36, 27 May 2010 (diff | hist) . . (-2) . . Category:Combinatorics (current)
- 14:35, 27 May 2010 (diff | hist) . . (+26) . . N Category:Combinatorics (Created page with 'Category:Math subjects')
- 14:34, 27 May 2010 (diff | hist) . . (+1) . . Category:Algebra
- 14:29, 27 May 2010 (diff | hist) . . (+26) . . N Category:Algorithms (Created page with 'Category:Math subjects')
- 14:27, 27 May 2010 (diff | hist) . . (+27) . . Category:Algebra
- 14:23, 27 May 2010 (diff | hist) . . (+6) . . Meta:Main Page
- 14:22, 27 May 2010 (diff | hist) . . (0) . . MediaWiki:Common.css
- 14:19, 27 May 2010 (diff | hist) . . (+15) . . MediaWiki:Common.css
- 14:16, 27 May 2010 (diff | hist) . . (0) . . m Meta:Main Page (moved Main Page to Meta:Main Page: So that Main Page does not appear in list of puzzles)
- 14:15, 27 May 2010 (diff | hist) . . (+14) . . N MediaWiki:Mainpage (Created page with 'Meta:Main Page') (current)
- 14:09, 27 May 2010 (diff | hist) . . (+2) . . Meta:Main Page
- 14:08, 27 May 2010 (diff | hist) . . (+56) . . MediaWiki:Common.css
- 12:45, 27 May 2010 (diff | hist) . . (0) . . m Template:Car talk (moved Template:Car Talk to Template:Car talk) (current)
- 12:45, 27 May 2010 (diff | hist) . . (+31) . . N Template:Car Talk (moved Template:Car Talk to Template:Car talk) (current)
- 12:44, 27 May 2010 (diff | hist) . . (-40) . . MediaWiki:Vector.css (current)
- 12:43, 27 May 2010 (diff | hist) . . (+40) . . MediaWiki:Vector.css
- 12:41, 27 May 2010 (diff | hist) . . (+6) . . MediaWiki:Vector.css
- 12:41, 27 May 2010 (diff | hist) . . (+96) . . N MediaWiki:Vector.css (Created page with '→CSS placed here will affect users of the Vector skin: #ca-talk { display:none!important; }')
- 12:40, 27 May 2010 (diff | hist) . . (+4) . . Twelve weights
- 12:26, 27 May 2010 (diff | hist) . . (+43) . . N MediaWiki:Viewprevnext (Created page with 'View (\$1 {{int:pipe-separator}} \$2) (\$3)')
- 09:00, 27 May 2010 (diff | hist) . . (-1) . . MediaWiki:Sidebar
- 08:59, 27 May 2010 (diff | hist) . . (-7) . . MediaWiki:Sidebar
- 08:58, 27 May 2010 (diff | hist) . . (+9) . . MediaWiki:Sidebar
- 08:57, 27 May 2010 (diff | hist) . . (+211) . . N MediaWiki:Sidebar (Created page with '* navigation ** mainpage|mainpage-description ** Special:Categories|Categories ** Special:Puzzles|All Puzzles ** Help:References|Links ** randompage-url|randompage ** helppage|he…')
- 07:06, 27 May 2010 (diff | hist) . . (-1) . . Template:Averbach
- 07:05, 27 May 2010 (diff | hist) . . (+370) . . Meta:Links
- 07:02, 27 May 2010 (diff | hist) . . (+107) . . Meta:Main Page
- 06:55, 27 May 2010 (diff | hist) . . (+107) . . N Template:Richard Wiseman (Created page with '[http://richardwiseman.wordpress.com/ Richard Wiseman's Blog] - new puzzle every Friday, answers on Monday.') (current)
- 06:50, 27 May 2010 (diff | hist) . . (+105) . . N Template:Mathisfun (Created page with '[http://www.mathsisfun.com/puzzles Maths is Fun] - math and logic puzzles appropriate for math education.') (current)
- 06:47, 27 May 2010 (diff | hist) . . (+15) . . Meta:Links
- 06:47, 27 May 2010 (diff | hist) . . (0) . . Template:Pzzls (current)
- 06:46, 27 May 2010 (diff | hist) . . (+112) . . N Template:Pzzls (Created page with '[http://www.pzzls.com/ pzzls] - Nice cite with a good variety of math and logic puzzles, as well as some others.')
- 06:44, 27 May 2010 (diff | hist) . . (+163) . . N Meta:Links (Created page with 'Looking for more puzzles? Try these excellent sources. ==Websites== *{{Car Talk}} *{{pzzls}} *{{Richard Wiseman}} ==Books== *{{Problem Solving}} *{{Averbach}}')
- 06:43, 27 May 2010 (diff | hist) . . (-1) . . Template:Averbach
- 06:43, 27 May 2010 (diff | hist) . . (-2) . . Template:Averbach
- 06:42, 27 May 2010 (diff | hist) . . (+1) . . Template:Averbach
- 21:00, 26 May 2010 (diff | hist) . . (+109) . . N Eight queens (Created page with 'How can you place eight queens on a chessboard so that no queen is attacking any other queen? {{Needs work}}') (current)
- 19:34, 26 May 2010 (diff | hist) . . (+130) . . N Next sequence (Created page with 'Consider the sequence 1, 11, 21, 1211, 111221, 312211... What comes next? Category: Lateral thinking Category: Sequences')
- 09:12, 25 May 2010 (diff | hist) . . (+115) . . N Template:Car talk (Created page with '[http://www.cartalk.com/content/puzzler/ Car Talk Puzzler] - sometimes automotive, sometimes more math/logic based.')
- 09:10, 25 May 2010 (diff | hist) . . (+835) . . N Poison (Created page with 'A nice number theory puzzle based on one I heard on Car Talk. ==Puzzle== In the secret lab of a mad scientist, you find thirteen vials of liquid. One of the vials contains a d…')
- 15:47, 24 May 2010 (diff | hist) . . (+702) . . N Double Russian roulette (Created page with 'Here is a puzzle similar to one that was on Car Talk. ==Puzzle== As often happens to time traveling spies, you have been captured by the Cold War era Russians. They have decid…')
- 14:48, 24 May 2010 (diff | hist) . . (+1,516) . . N Chests of logic 3 (Created page with 'Another puzzle inspired by Richard Wiseman's Blog. ==Puzzle== You awake in a locked dungeon containing three chests, numbered 1, 2, and 3. The guard tells you that he has plac…')
- 14:48, 24 May 2010 (diff | hist) . . (+67) . . N Category:Computer science (Created page with 'Here are some puzzles which illustrate ideas from computer science.')
- 11:33, 21 May 2010 (diff | hist) . . (+259) . . Times of day
- 11:29, 21 May 2010 (diff | hist) . . (+22) . . Splitting ten
- 11:28, 21 May 2010 (diff | hist) . . (+54) . . Splitting ten
- 11:26, 21 May 2010 (diff | hist) . . (+273) . . Splitting ten (→Help)
- 11:07, 20 May 2010 (diff | hist) . . (+59) . . Sharing water
- 11:06, 20 May 2010 (diff | hist) . . (-1) . . Egg timers (current)
- 11:06, 20 May 2010 (diff | hist) . . (+781) . . N Egg timers (Created page with 'Here is a variation on one of Richard Wiseman's [http://richardwiseman.wordpress.com/2010/05/14/its-the-friday-puzzle-59/ Friday puzzles]. ==Puzzle== For dinner you decide to m…')
- 10:54, 20 May 2010 (diff | hist) . . (+1,060) . . N Nine minute fuse (Created page with 'Here is a puzzle I came up with after getting the wrong solution to one of Richard Wiseman's [http://richardwiseman.wordpress.com/2010/05/14/its-the-friday-puzzle-59 Friday puzzl…')
- 10:54, 20 May 2010 (diff | hist) . . (+92) . . N Category:Measuring puzzles (Created page with 'In these puzzles you need to measure a certain amount of something, given various constants.')
- 17:14, 19 May 2010 (diff | hist) . . (-16) . . Harry Potter and the hall of 100 doors (→Mathematical content)
- 14:55, 19 May 2010 (diff | hist) . . (+657) . . N Sharing water (Created page with '==Puzzle== After wandering around lost in the desert two travelers come across a magic refrigerator. Inside, they find a jug full to the rim of eight cups of ice cold water. A…')
- 09:51, 19 May 2010 (diff | hist) . . (-2) . . Template:Averbach
- 09:51, 19 May 2010 (diff | hist) . . (-76) . . Template:Averbach
- 09:50, 19 May 2010 (diff | hist) . . (+169) . . Template:Averbach
- 09:47, 19 May 2010 (diff | hist) . . (+286) . . Template:Averbach
- 09:43, 19 May 2010 (diff | hist) . . (+24) . . Template:Averbach
- 09:41, 19 May 2010 (diff | hist) . . (-15) . . Three couples
- 09:40, 19 May 2010 (diff | hist) . . (-48) . . Template:Averbach
- 09:36, 19 May 2010 (diff | hist) . . (+15) . . Three couples
- 09:32, 19 May 2010 (diff | hist) . . (0) . . m Template:Averbach (Protected "Template:Averbach" ([edit=sysop] (indefinite) [move=sysop] (indefinite)))
- 09:32, 19 May 2010 (diff | hist) . . (+387) . . Template:Averbach
- 09:03, 19 May 2010 (diff | hist) . . (+19) . . Cannibals and missionaries (→Links)
- 09:02, 19 May 2010 (diff | hist) . . (+217) . . N Template:Averbach (Created page with '[http://www.amazon.com/gp/product/0486409171?ie=UTF8&tag=matpuzwik-20&linkCode=as2&camp=1789&creative=390957&creativeASIN=0486409171 Problem Solving Through Recreational Mathemat…')
- 09:00, 19 May 2010 (diff | hist) . . (+30) . . Three couples
- 08:58, 19 May 2010 (diff | hist) . . (-3) . . Six weights
- 08:55, 19 May 2010 (diff | hist) . . (+191) . . N Template:Problem Solving (Created page with '[http://www.amazon.com/gp/product/0759342644?ie=UTF8&tag=matpuzwik-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=0759342644 Problem Solving] by Thomas DeFranco and Charles…') (current)
- 08:38, 19 May 2010 (diff | hist) . . (-3) . . Commuter
- 08:34, 19 May 2010 (diff | hist) . . (+52) . . Commuter
- 11:17, 18 May 2010 (diff | hist) . . (+1,008) . . N Nine prisoners (Created page with 'Nine tongueless prisoners awake and see that they are all wearing hats (although they cannot see their own). The guard tells the prisoners that each hat is either red or white. I…')
- 11:12, 18 May 2010 (diff | hist) . . (+43) . . Prisoners in red hats
- 11:11, 18 May 2010 (diff | hist) . . (+985) . . N Prisoners in red hats (Created page with 'Here is different version of the Green eyed dragons puzzle. ==Puzzle== Twenty-eight tongueless prisoners awake to see that they are all wearing hats (although they cannot s…')
- 11:05, 18 May 2010 (diff | hist) . . (0) . . m Three prisoners (moved Five hats to Three prisoners: I think this is a more common name for the puzzle.)
- 11:05, 18 May 2010 (diff | hist) . . (+29) . . N Five hats (moved Five hats to Three prisoners: I think this is a more common name for the puzzle.) (current)
- 11:02, 18 May 2010 (diff | hist) . . (+899) . . N Three prisoners (Created page with 'Three prisoners are waiting in a single cell. The jailer comes in, and shows the prisoners 5 hats: two red and three black. He then turns out the lights, and puts a hat on each p…')
- 10:56, 18 May 2010 (diff | hist) . . (+75) . . N Category:Cases (Created page with 'These puzzles illustrate the importance of breaking a solutions into cases.') (current)
- 10:55, 18 May 2010 (diff | hist) . . (+68) . . N Category:Lateral thinking (Created page with 'These puzzles require some creative "out of the box" style thinking.')
- 10:54, 18 May 2010 (diff | hist) . . (+44) . . N Category:Induction (Created page with 'Puzzles illustrating mathematical induction.')
- 10:53, 18 May 2010 (diff | hist) . . (+90) . . N Category:Pattern recognition (Created page with 'These puzzles are good examples of how important patter recognition is to problem solving.')
- 10:51, 18 May 2010 (diff | hist) . . (+42) . . Meta:Main Page
- 10:50, 18 May 2010 (diff | hist) . . (+132) . . N Category:Crossing puzzles (Created page with 'This classic genre of puzzle involves characters which must cross from one side to another, given some near debilitating conditions.')
- 10:48, 18 May 2010 (diff | hist) . . (+66) . . N Category:Velocity puzzles (Created page with 'Velocity can be tricky. Here are some puzzles to illustrate that.')
- 10:47, 18 May 2010 (diff | hist) . . (+48) . . N Category:Probability (Created page with 'Puzzles which illustrate ideas from probability.')
- 10:47, 18 May 2010 (diff | hist) . . (+35) . . N Category:Weighing puzzles (Created page with 'Puzzles where weighing is involved.')
- 10:45, 18 May 2010 (diff | hist) . . (+177) . . N Category:Liar puzzles (Created page with 'This classic genre of puzzle presents various statements, some of which are true, and some of which are false. It is up to the solver to determine which are which, if possible.')
- 10:43, 18 May 2010 (diff | hist) . . (+1) . . Chests of logic
- 10:43, 18 May 2010 (diff | hist) . . (+63) . . N Category:Graph theory (Created page with 'Here are some puzzles which illustrate ideas from graph theory.')
- 10:42, 18 May 2010 (diff | hist) . . (+263) . . N Category:Pigeonhole principle (Created page with 'The pigeonhole principle states that if $n$ objects (pigeons) are to be placed in fewer than $n$ sets (holes), then at least one set must contain more than one object. Puzzles i…')
- 10:40, 18 May 2010 (diff | hist) . . (+2) . . Meta:Main Page
- 10:39, 18 May 2010 (diff | hist) . . (+57) . . Meta:Main Page
- 10:38, 18 May 2010 (diff | hist) . . (+56) . . N Category:Number theory (Created page with 'These puzzles all contain some number theoretic content.')
- 10:34, 18 May 2010 (diff | hist) . . (+92) . . N Category:Algebra (Created page with 'Although these puzzles could be solved with algebra, there is often a more elegant solution.')
- 10:33, 18 May 2010 (diff | hist) . . (+78) . . N Category:Positional (Created page with 'These puzzles require the solver to consider the relative position of objects.') (current)
- 10:32, 18 May 2010 (diff | hist) . . (+172) . . N Category:Logic (Created page with 'In general, these are puzzles which require mostly logical thinking to solve. Additionally, some of these puzzles might in fact deal with logic as a branch of mathematics.')
- 10:31, 18 May 2010 (diff | hist) . . (+59) . . N Category:Comparison puzzles (Created page with 'These are puzzles where it is necessary to compare objects.')
- 10:25, 18 May 2010 (diff | hist) . . (+13) . . Red vs black
- 09:44, 17 May 2010 (diff | hist) . . (+575) . . N Five towns (Created page with 'A puzzle similar to the Houses and utilities puzzle. ==Puzzle== Back in the days of yore, five small towns decided they wanted to build roads connecting each pair of towns.…')
- 08:43, 16 May 2010 (diff | hist) . . (-12) . . Friends or non-friends
- 08:42, 16 May 2010 (diff | hist) . . (-25) . . Splitting ten
- 08:41, 16 May 2010 (diff | hist) . . (+47) . . Splitting ten
- 08:39, 16 May 2010 (diff | hist) . . (-1) . . Lean meat
- 08:37, 16 May 2010 (diff | hist) . . (-12) . . Commuter
- 08:35, 16 May 2010 (diff | hist) . . (0) . . m Next letter (Unprotected "Next letter")
- 08:35, 16 May 2010 (diff | hist) . . (+74) . . Next letter
- 08:34, 16 May 2010 (diff | hist) . . (+12) . . Seven orbs
- 08:32, 16 May 2010 (diff | hist) . . (+473) . . N Help:Standard layout example (Created page with 'Here is an introduction. Or nothing. Something short. ==Puzzle== Here is the main puzzle. How puzzling it is. This must be the first section. ==Help== {{Hint| Here is a h…') (current)
- 08:28, 16 May 2010 (diff | hist) . . (+150) . . N Help:Simple layout example (Created page with 'The puzzle goes here. Note that there are no section headings. {| style="border:1px solid black; background-color:#dddddd;" |Categories: go here |}') (current)
- 08:25, 16 May 2010 (diff | hist) . . (+728) . . N Help:Standard layout (Created page with 'All pages should conform to a somewhat standard layout, defined as follows: #For pages which only contain a single puzzle, with no other content (except perhaps a list of catego…') (current)
- 08:14, 16 May 2010 (diff | hist) . . (+44) . . Help:Contents
- 07:59, 16 May 2010 (diff | hist) . . (+135) . . N Help:Contents (Created page with 'These are pages designed to help in the maintenance of the site. If you are looking for help on a specific puzzle, you are on you own.')
- 07:56, 16 May 2010 (diff | hist) . . (+12) . . Lean meat
- 07:55, 16 May 2010 (diff | hist) . . (+12) . . Three logicians
- 08:11, 14 May 2010 (diff | hist) . . (+77) . . N Category:Optimization puzzles (Created page with 'Here are some puzzles where the goal is to minimize or maximize some quantity')
- 08:09, 14 May 2010 (diff | hist) . . (+1,531) . . N Four travelers (Created page with '==Puzzle== Late one night, four weary travelers come to an old rickety rope bridge over an crocodile infested gorge. With planks missing here and there, it is not safe to cross…')
- 07:35, 14 May 2010 (diff | hist) . . (+657) . . N Gem thief (Created page with 'Here is a liar/truth-teller puzzle I made up for an exam. ==Puzzle== Detective Ruby Gould is investigating the theft of some rare gemstones. She has five suspects (named Al, B…')
- 07:24, 14 May 2010 (diff | hist) . . (+1,107) . . Two guards
- 07:10, 14 May 2010 (diff | hist) . . (+2) . . Friends or non-friends
- 12:55, 13 May 2010 (diff | hist) . . (+4) . . Houses and utilities (current)
- 10:29, 13 May 2010 (diff | hist) . . (+18) . . Template:Solution
- 10:29, 13 May 2010 (diff | hist) . . (-38) . . Next letter
- 10:26, 13 May 2010 (diff | hist) . . (-19) . . Frog staircase
- 10:26, 13 May 2010 (diff | hist) . . (+18) . . Template:Answer
- 09:18, 13 May 2010 (diff | hist) . . (-683) . . MediaWiki:Common.js
- 09:17, 13 May 2010 (diff | hist) . . (-2,347) . . MediaWiki:Common.js
- 09:16, 13 May 2010 (diff | hist) . . (-817) . . MediaWiki:Common.js
- 09:15, 13 May 2010 (diff | hist) . . (-862) . . MediaWiki:Common.js
- 09:14, 13 May 2010 (diff | hist) . . (-1,468) . . MediaWiki:Common.js
- 09:13, 13 May 2010 (diff | hist) . . (+9,422) . . MediaWiki:Common.js (Undo revision 171 by Oscarlevin (Talk))
- 09:10, 13 May 2010 (diff | hist) . . (-9,422) . . MediaWiki:Common.js
- 09:02, 13 May 2010 (diff | hist) . . (+1) . . Talk:Lean meat (current)
- 09:02, 13 May 2010 (diff | hist) . . (+214) . . Talk:Lean meat
- 09:00, 13 May 2010 (diff | hist) . . (+63) . . N Talk:Lean meat (Created page with 'This is a test of the talk page. Here is a collapsed navframe:')
- 06:44, 13 May 2010 (diff | hist) . . (0) . . m Next letter (Protected "Next letter" ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite)))
- 20:50, 12 May 2010 (diff | hist) . . (-225) . . Next letter
- 20:48, 12 May 2010 (diff | hist) . . (+226) . . Next letter
- 14:34, 12 May 2010 (diff | hist) . . (-19) . . Template:Solution
- 14:12, 12 May 2010 (diff | hist) . . (+75) . . Frog staircase (→Puzzle)
- 14:09, 12 May 2010 (diff | hist) . . (+71) . . N MediaWiki:Revision-nav (Created page with '(\$1) \$2{{int:pipe-separator}}\$3 (\$4){{int:pipe-separator}}\$5 (\$6)')
- 14:07, 12 May 2010 (diff | hist) . . (+54) . . N MediaWiki:Watchlistcontains (Created page with 'Your watchlist contains \$1 {{PLURAL:\$1|page|pages}}.')
- 14:04, 12 May 2010 (diff | hist) . . (+47) . . N MediaWiki:Shown-title (Created page with 'Show \$1 {{PLURAL:\$1|result|results}} per page')
- 14:02, 12 May 2010 (diff | hist) . . (+98) . . N MediaWiki:Badsiglength (Created page with 'Your signature is too long. It must not be more than \$1 {{PLURAL:\$1|character|characters}} long.')
- 13:59, 12 May 2010 (diff | hist) . . (+49) . . N MediaWiki:Pagemerge-logentry (Created page with 'merged \$1 into \$2 (revisions up to \$3)')
- 13:58, 12 May 2010 (diff | hist) . . (+25) . . N MediaWiki:Revision-info (Created page with 'Revision as of \$1 by \$2')
- 13:56, 12 May 2010 (diff | hist) . . (+67) . . N MediaWiki talk:Currentrev-asof (Created page with 'added a \ in front of the \$ to work with the DollarSign extension.') (current)
- 13:56, 12 May 2010 (diff | hist) . . (+26) . . N MediaWiki:Currentrev-asof (Created page with 'Current revision as of \$1')
- 13:48, 12 May 2010 (diff | hist) . . (0) . . m Next letter (Unprotected "Next letter")
- 13:43, 12 May 2010 (diff | hist) . . (0) . . m Next letter (Protected "Next letter" ([edit=autoconfirmed] (indefinite) [move=autoconfirmed] (indefinite)))
- 13:11, 12 May 2010 (diff | hist) . . (-19) . . Template:Answer
- 13:10, 12 May 2010 (diff | hist) . . (+38) . . Next letter
- 13:04, 12 May 2010 (diff | hist) . . (+19) . . Template:Solution
- 13:03, 12 May 2010 (diff | hist) . . (+19) . . Template:Answer
- 10:34, 12 May 2010 (diff | hist) . . (+102) . . Template:Needs work (current)
- 10:30, 12 May 2010 (diff | hist) . . (-30) . . Around the world
- 10:28, 12 May 2010 (diff | hist) . . (+38) . . Seven orbs
- 10:26, 12 May 2010 (diff | hist) . . (0) . . Failed exams (→Help)
- 10:25, 12 May 2010 (diff | hist) . . (+45) . . Failed exams (→Hint)
- 10:22, 12 May 2010 (diff | hist) . . (+22) . . Template:Solution
- 10:22, 12 May 2010 (diff | hist) . . (+22) . . Template:Answer
- 10:21, 12 May 2010 (diff | hist) . . (+22) . . Template:Hint
- 10:20, 12 May 2010 (diff | hist) . . (+5) . . MediaWiki:Monobook.css (current)
- 10:19, 12 May 2010 (diff | hist) . . (+26) . . Next letter
- 10:17, 12 May 2010 (diff | hist) . . (+26) . . Template:Solution
- 10:15, 12 May 2010 (diff | hist) . . (+26) . . Template:Answer
- 10:13, 12 May 2010 (diff | hist) . . (+27) . . Template:Hint
- 10:09, 12 May 2010 (diff | hist) . . (+13) . . Template:Needs hint
- 10:08, 12 May 2010 (diff | hist) . . (+12) . . Template:Needs solution
- 10:07, 12 May 2010 (diff | hist) . . (+11) . . Template:Needs answer
- 10:04, 12 May 2010 (diff | hist) . . (+123) . . Lean meat
- 10:00, 12 May 2010 (diff | hist) . . (+162) . . N Template:Answer (Created page with '<div class="NavFrame collapsed" style="text-align:left"> <div class="NavHead" style="padding-left:1ex">Answer</div> <div class="NavContent"> {{{1}}} </div> </div>')
- 09:57, 12 May 2010 (diff | hist) . . (+282) . . N Template:Needs solution (Created page with '{| style="border: 1px solid black; text-align:left; background-color:#ffffee; padding:4px;" ! Solution coming soon |- | If you would like to add a solution do so using the solut…')
- 09:56, 12 May 2010 (diff | hist) . . (-5) . . Template:Needs hint
- 09:55, 12 May 2010 (diff | hist) . . (+263) . . N Template:Needs hint (Created page with '{| style="border: 1px solid black; text-align:left; background-color:#fbeeff; padding:4px;" ! Hint coming soon |- | If you would like to add an answer do so using the answer tem…')
- 09:53, 12 May 2010 (diff | hist) . . (+219) . . Template:Needs answer
- 09:05, 12 May 2010 (diff | hist) . . (+10) . . Next letter
- 09:02, 12 May 2010 (diff | hist) . . (0) . . MediaWiki:Monobook.css
- 09:01, 12 May 2010 (diff | hist) . . (+166) . . MediaWiki:Monobook.css
- 08:57, 12 May 2010 (diff | hist) . . (+164) . . N Template:Solution (Created page with '<div class="NavFrame collapsed" style="text-align:left"> <div class="NavHead" style="padding-left:1ex">Solution</div> <div class="NavContent"> {{{1}}} </div> </div>')
- 08:56, 12 May 2010 (diff | hist) . . (+188) . . Next letter
- 08:54, 12 May 2010 (diff | hist) . . (+25) . . Template:Hint
- 08:38, 12 May 2010 (diff | hist) . . (-10) . . Template:Hint
- 08:33, 12 May 2010 (diff | hist) . . (+18,721) . . N MediaWiki:Common.js (Created page with '//<source lang="javascript"> →* Description: Redirects from /User:UserName/skin.js or .css to the user's actual skin page * Maintainer: Cacycle: if (wgArticleId == 0 && …')
- 08:31, 12 May 2010 (diff | hist) . . (+1) . . MediaWiki:Common.css
- 08:29, 12 May 2010 (diff | hist) . . (+28) . . Template:Hint
- 08:27, 12 May 2010 (diff | hist) . . (-28) . . Template:Hint
- 08:24, 12 May 2010 (diff | hist) . . (+19) . . Next letter
- 08:23, 12 May 2010 (diff | hist) . . (+145) . . N Template:Hint (Created page with '<div class="NavFrame collapsed" style="text-align:left"> <div class="NavHead">Hint</div> <div class="NavContent"> {{{1}}} </div> </div>')
- 07:38, 12 May 2010 (diff | hist) . . (-1) . . MediaWiki:Monobook.css
- 07:36, 12 May 2010 (diff | hist) . . (+1) . . MediaWiki:Monobook.css
- 07:28, 12 May 2010 (diff | hist) . . (0) . . MediaWiki:Monobook.css
- 07:26, 12 May 2010 (diff | hist) . . (0) . . MediaWiki:Monobook.css
- 07:24, 12 May 2010 (diff | hist) . . (0) . . MediaWiki:Monobook.css
- 07:20, 12 May 2010 (diff | hist) . . (0) . . MediaWiki:Monobook.css
- 07:15, 12 May 2010 (diff | hist) . . (-234) . . MediaWiki:Monobook.css
- 07:08, 12 May 2010 (diff | hist) . . (+4,602) . . N MediaWiki:Monobook.css (Created page with '→<source lang="css">: →Don't display some stuff on the main page: body.page-Main_Page #deleteconfirm, body.page-Main_Page #t-cite, body.page-Main_Page #lastmod, body.pa…')
- 06:06, 12 May 2010 (diff | hist) . . (0) . . MediaWiki:Common.css
- 05:46, 12 May 2010 (diff | hist) . . (+719) . . N Help:Latex (Created page with 'This wiki has the DollarSign extension installed, which allows for math to be enclosed between "\$" instead of the usual <nowiki><math>...</math></nowiki>. To get a "\$" we inst…')
- 05:40, 12 May 2010 (diff | hist) . . (0) . . MediaWiki talk:Searchsubtitle (current)
- 05:40, 12 May 2010 (diff | hist) . . (+297) . . N MediaWiki talk:Searchsubtitle (Created page with 'After installing the DollarSign extension (which allows using "\$" to enclose math mode) the search subtitle notification was messed up (it displayed the code in math mode). Add…')
- 05:37, 12 May 2010 (diff | hist) . . (+170) . . N MediaWiki:Searchsubtitle (Created page with 'You searched for '''\$1''' (all pages starting with "\$1"{{int:pipe-separator}}all pages that link to "$1")')
- 05:34, 12 May 2010 (diff | hist) . . (-1) . . MediaWiki:Noexactmatch (current)
- 05:33, 12 May 2010 (diff | hist) . . (+70) . . N MediaWiki:Noexactmatch (Created page with ''''There is no page titled "\$1".''' You can create this page.')
- 18:30, 23 April 2010 (diff | hist) . . (+440) . . N Round trip winds (Created page with 'Each day, a plane flies due east from airport A to airport B, then back (due west) from airport B to airport A. The plane always flies with the same constant engine speed. On M…')
- 18:23, 23 April 2010 (diff | hist) . . (+32) . . Palindromic odometer (current)
- 18:21, 23 April 2010 (diff | hist) . . (+330) . . N Palindromic odometer (Created page with 'Bob is driving along, and looks at his odometer. It reads 13,931 as the mileage on his vehicle, the same backwards as forwards. Two hours later, he looks at his odometer again, a…')
- 09:49, 22 April 2010 (diff | hist) . . (+813) . . N Red vs black (Created page with 'You have a regular deck of 52 playing cards which you shuffle very well. You are instructed to peel off two cards at a time and place them in one of three piles: * Put both car…')
- 09:43, 22 April 2010 (diff | hist) . . (+3) . . Lying monkey
- 09:42, 22 April 2010 (diff | hist) . . (+475) . . N Lying monkey (Created page with 'You are a contestant on the hit game show "Lying Monkey." You are shown a hat which contains 80 folded $1 bills and 20 folded $5 bills. The trained talking monkey reaches in to …')
- 12:41, 20 April 2010 (diff | hist) . . (+766) . . N Turn off a calculator (Created page with 'As you are finishing up you math homework, the power goes out. You realize that it might not come on for a while, so you should probably just call it quits. You reach for the c…')
- 20:33, 16 April 2010 (diff | hist) . . (0) . . m High school play (moved High School Play to High school play)
- 20:32, 16 April 2010 (diff | hist) . . (+43) . . Prom problem
- 20:31, 16 April 2010 (diff | hist) . . (+1) . . High school play (→Similar puzzles)
- 20:31, 16 April 2010 (diff | hist) . . (+13) . . High school play
- 15:47, 14 April 2010 (diff | hist) . . (+497) . . N Three logicians (Created page with 'Three logicians are chatting after teaching their classes for the day. As they talk, each notices that the other two have smeared dry-erase marker on their face, and all three be…')
- 15:39, 14 April 2010 (diff | hist) . . (+1,732) . . Green eyed dragons
- 10:50, 13 April 2010 (diff | hist) . . (+157) . . N Lean meat (Created page with 'Solve the cryptarithmetic: LEAN + MEAT = LLAMA. There are two solutions. (Each letter represents a unique single digit 0-9). Category: Cryptarithmetic')
- 20:08, 12 April 2010 (diff | hist) . . (+2) . . Meta:Main Page (→List of pages)
- 20:02, 12 April 2010 (diff | hist) . . (+41) . . Meta:Main Page
- 19:59, 12 April 2010 (diff | hist) . . (+632) . . N Seven elevators (Created page with 'The superintendent of an apartment building tells you that his building has seven elevators. Each elevator stops on at most 6 floors. He also tells you that you can get to any o…')
- 19:51, 12 April 2010 (diff | hist) . . (+586) . . N Knight vs. dragon (Created page with 'A dragon and knight live on an island. This island has seven poisoned wells, numbered 1 to 7. If you drink from a well, you can only save yourself by drinking from a higher numbe…')
- 18:29, 12 April 2010 (diff | hist) . . (+929) . . N Chests of logic (Created page with 'You are an archaeologist that has just unearthed a long sought pair of ancient treasure chests. One chest is plated with silver, and the other is plated with gold. According to l…')
- 18:21, 12 April 2010 (diff | hist) . . (+556) . . N Multiple locks (Created page with 'You belong to a club that has accumulated valuable jewelry. The treasure is kept in a chest. For security reasons, you want at least two of your 10 club members present when the …')
- 18:18, 12 April 2010 (diff | hist) . . (+877) . . N Three sons (Created page with 'On sunny afternoon in September, Richard and Katie were chatting over coffee, after not seeing each other in many years. "Do you have any children?" asked Katie? "Yes. I have …')
- 18:12, 12 April 2010 (diff | hist) . . (+267) . . N True or false (Created page with 'Assign a truth value to each of the following statements. # Statement 5 is false. # Statement 1 is false. # Statement 4 is true. # Only one of these statements is false. # Statem…')
- 18:10, 12 April 2010 (diff | hist) . . (+138) . . N Two EGGs (Created page with 'Solve this cryptarithmetic problem: EGG + EGG = PAGE. (Each letter represents a unique digit from 0 to 9.) Category: Cryptarithmetic')
- 18:07, 12 April 2010 (diff | hist) . . (-1) . . Splitting ten
- 18:06, 12 April 2010 (diff | hist) . . (+80) . . N Template:Needs math (Created page with '==Mathematics== Coming soon! Category: Needs math Category: Needs work')
- 18:05, 12 April 2010 (diff | hist) . . (+52) . . N Template:Needs answer (Created page with '==Solution== Coming soon! Category: Unanswered')
- 18:05, 12 April 2010 (diff | hist) . . (+282) . . N Splitting ten (Created page with 'Ten people are sitting around a round table. The sum of ten dollars is to be distributed among them according to the rule that each person receives one half of the sum that his t…')
- 18:02, 12 April 2010 (diff | hist) . . (+79) . . N Times of day (Created page with 'How many times a day do the digits on a digital clock add to 22? At what times?')
- 13:28, 12 April 2010 (diff | hist) . . (+32) . . Next letter (→Puzzle)
- 13:27, 12 April 2010 (diff | hist) . . (+69) . . N Next letter (Created page with '==Puzzle== What is the next letter in the sequence: O T T F F S S E.')
- 12:42, 12 April 2010 (diff | hist) . . (+28) . . Seven orbs
- 12:37, 12 April 2010 (diff | hist) . . (-47) . . Meta:Main Page
- 12:36, 12 April 2010 (diff | hist) . . (+4) . . Meta:Main Page
- 12:27, 12 April 2010 (diff | hist) . . (-1) . . Meta:Main Page
- 12:27, 12 April 2010 (diff | hist) . . (-231) . . Meta:Main Page
- 21:19, 9 April 2010 (diff | hist) . . (+538) . . N Fuses (Created page with 'A very nice puzzle from PProblem SSSolving. ==Puzzle== You have two fuses, each twelve inches long. Each fuse burns in exactly one hour, but does not necessarily burn at a unif…')
- 12:52, 8 April 2010 (diff | hist) . . (+26) . . Template:Needs work
- 12:50, 8 April 2010 (diff | hist) . . (+12) . . N Template:Needs work (Created page with 'Coming soon!')
- 12:49, 8 April 2010 (diff | hist) . . (+71) . . N Green eyed dragons (Created page with '==Puzzle== {{needs work}} Category: Induction Category: Logic')
- 12:44, 8 April 2010 (diff | hist) . . (+1,036) . . N Milk and coffee (Created page with 'This simple thought experiment is has surprising result. The variation is a good activity for students to try to get a handle on the problem. ==Puzzle== An 8-ounce cup of coff…')
- 12:36, 8 April 2010 (diff | hist) . . (+1,007) . . N Forty thieves (Created page with 'Here is an easier version of the Five pirates puzzle. ==Puzzle== Forty thieves, all of different ages, steal a huge pile of identical gold coins. For whatever reason, they …')
- 12:33, 8 April 2010 (diff | hist) . . (+552) . . N Commuter (Created page with '==Puzzle== A commuter rides the train to and from work each day. Her husband meets her at the train station and drives her home. One day the commuter leaves work early, catches …')
- 12:14, 8 April 2010 (diff | hist) . . (+668) . . N Two guards (Created page with 'Here is the classic puzzle of the two guards, one a liar and one honest. As seen in Labyrinth, Doctor Who, and elsewhere. ==Puzzle== You are in a dungeon (trying to get out, o…')
- 21:10, 7 April 2010 (diff | hist) . . (+564) . . N Failed exams (Created page with 'Here is a typical set theory problem ==Puzzle== An examination in three subjects, Algebra, Biology, and Chemistry, was taken by 41 students. The following table shows how many …')
- 20:57, 7 April 2010 (diff | hist) . . (+1,200) . . N Prom problem (Created page with 'A nice, medium difficulty logic puzzle as appears in PProblem SSSolving. ==Puzzle== After the senior prom, six friends went to their favorite restaurant, where they shared a bo…')
- 18:38, 7 April 2010 (diff | hist) . . (+551) . . N Blank dice (Created page with 'Here is a probability brain teaser that I remember from a math for elementary ed class I tutored. ==Puzzle== When you roll two six sided fair dice and add the dots displayed,…')
- 18:28, 7 April 2010 (diff | hist) . . (+562) . . N Light bulb (Created page with 'Here is a classic lateral thinking puzzle. ==Puzzle== A very strange house has a single light bulb connected in the basement. The switch for this light is located on the top f…')
- 18:22, 7 April 2010 (diff | hist) . . (0) . . Earings (→Puzzle)
- 18:21, 7 April 2010 (diff | hist) . . (+174) . . N Earings (Created page with '==Puzzle== In a village of 800 women, 3% wear one earing. Of the remaining 97%, half wear two earrings and half wear none. How many earrings are worn? Category: Algebra')
- 15:59, 7 April 2010 (diff | hist) . . (+25,497) . . N MediaWiki:Common.css (Created page with '→CSS placed here will be applied to all skins: →<source lang="css">: →Main page fixes: #interwiki-completelist { font-weight: bold; } body.page-Main_Page #ca-de…')
- 15:26, 7 April 2010 (diff | hist) . . (+628) . . N Ten bags of gold (Created page with 'Here is a weighing puzzle I remember from Mind-quest. ==Puzzle== You have ten bags filled with ten gold coins each -- or so you thought. A mysterious note arrives informing yo…')
- 15:16, 7 April 2010 (diff | hist) . . (+699) . . N Six weights (Created page with 'A nice variation of the classic balance scale weighing puzzle. First saw this in PProblem SSSolving. ==Puzzle== You have six weights. One pair is red, one pair is white, one p…')
- 13:51, 7 April 2010 (diff | hist) . . (+1) . . Twelve weights (→See also)
- 13:51, 7 April 2010 (diff | hist) . . (+1,069) . . N Twelve weights (Created page with 'A classic weighing problem, much harder than the similar Nine weights puzzle. ==Puzzle== Each year at the Fairytale Fair, a contest is held to see which goose can lay a gol…')
- 18:18, 5 April 2010 (diff | hist) . . (+98) . . N Talk:Around the world (Created page with 'I think Will D. told me this puzzle. At some point I should email him to get the correct version.')
- 18:17, 5 April 2010 (diff | hist) . . (+419) . . N Around the world (Created page with 'This is a nice optimization problem. ==Puzzle== It goes something like this: you must fly around the world in a plane, but it does not hold enough gas to get you there (how muc…')
- 10:03, 5 April 2010 (diff | hist) . . (+242) . . Three couples
- 10:01, 5 April 2010 (diff | hist) . . (+698) . . N Three couples (Created page with 'Here is a crossing puzzle similar to Cannibals and missionaries. I first saw this in Averbach and Chein. ==Puzzle== Three couples are on a safari, when they come to a rive…')
- 08:10, 5 April 2010 (diff | hist) . . (+241) . . Nine weights (→Puzzle)
- 08:06, 5 April 2010 (diff | hist) . . (+685) . . N Nine weights (Created page with 'A classic logic puzzle. ==Puzzle== On the table sit nine identical looking nuggets of gold. However, you know that one of the nine is a clever forgery. The only difference be…')
- 07:55, 5 April 2010 (diff | hist) . . (+2) . . Friends at a party (→Puzzle)
- 11:30, 3 April 2010 (diff | hist) . . (+1,633) . . N Ball drop (Created page with 'Here is a nice optimization puzzle from the [http://www.mathsisfun.com: Maths is Fun] website. ==Puzzle== Pool and Billiard mega store Balls-R-Us wants to shoot a commercial fo…')
- 09:36, 2 April 2010 (diff | hist) . . (+703) . . N Five pirates (Created page with 'Here is a considerably harder version of the Forty thieves puzzle. ==The puzzle== Five bloodthirsty pirates have just procured 100 gold pieces, which they must now divide …')
- 14:10, 30 March 2010 (diff | hist) . . (+65) . . N Talk:Houses and utilities (Created page with 'This should be put into a nicer story, and should have a graphic.')
- 14:10, 30 March 2010 (diff | hist) . . (+166) . . N Houses and utilities (Created page with '==Puzzle== Is it possible to connect each of three houses to each of three utilities without any of the lines crossing? (NEEDS PICTURE) Category: Graph theory')
- 14:07, 30 March 2010 (diff | hist) . . (+286) . . N Friends or non-friends (Created page with '==Puzzle== If there are six people in a room, must there be at least three of them who are either all friends with each other or all non-friends with each other? (If A is frien…')
- 14:03, 30 March 2010 (diff | hist) . . (+1) . . m Friends at a party (→Puzzle)
- 14:01, 30 March 2010 (diff | hist) . . (+258) . . N Friends at a party (Created page with '==Puzzle== An extremely popular mathematician threw a party. Including himself, there were 15 people at the party. Must there have been two people there with the same number o…')
(newest | oldest) View (newer 500 | older 500) (20 | 50 | 100 | 250 | 500)