User contributions for Oscarlevin

A user with 1,022 edits. Account created on 28 March 2010.
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11 October 2010

23 September 2010

  • 12:3812:38, 23 September 2010 diff hist +478 N Checkerboard and dominoesCreated 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...'

8 September 2010

  • 11:5711:57, 8 September 2010 diff hist +694 N Three digit magicCreated 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...'

3 September 2010

  • 08:0708:07, 3 September 2010 diff hist +476 N Next numberCreated 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...'

30 August 2010

  • 12:0912:09, 30 August 2010 diff hist +798 N Bags of gemsCreated 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...'

26 August 2010

  • 14:3414:34, 26 August 2010 diff hist +695 N Probably blackjackCreated 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...'
  • 11:3911:39, 26 August 2010 diff hist +568 N Monk's walkCreated 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...'
  • 11:2211:22, 26 August 2010 diff hist +833 N Three guessesCreated 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

23 August 2010

21 August 2010

20 August 2010

19 August 2010

13 August 2010

  • 15:2815:28, 13 August 2010 diff hist +500 N Eight weightsCreated 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 ...'

31 July 2010

  • 05:3205:32, 31 July 2010 diff hist +968 N Soda machineCreated 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...'

22 July 2010

16 July 2010

13 July 2010

7 July 2010

5 July 2010

2 July 2010

1 July 2010

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