User contributions
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- 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
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