New Brain Teasers (User Submitted)

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  1. New Logic/Math Puzzles

    They can be logical [e.g. honestans/swindlecants or hats on death row], math [e.g. probability, sequences], physics or geometry, especially where intuition might suggest wrong answer.

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    posts
  2. New Word Riddles

    Inductive, intuitive, but still requiring some thought (eg. riddle of the sphynx, What-Am-I riddles, anagrams, Shakeepuddn's style, etc.)

    26056
    posts
  3. New Optical Illusions

    Post amazing illusions you have seen on the web right here.

    240
    posts
  4. Other Mind Boggling Stuff On Web

    Anything else on the web that is worth mentioning.

    160
    posts