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BrainDen.com - Brain Teasers
  1. New Brain Teasers (User Submitted)

    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.

      209.8k
      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.)

      27.2k
      posts
    3. New Optical Illusions

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

      251
      posts
    4. Other Mind Boggling Stuff On Web

      Anything else on the web that is worth mentioning.

      167
      posts
  2. Old Brain Teasers

    1. 7k
      posts
    2. Paradoxes

      The most famous paradoxes - liar paradox, barber paradox, doubtful existence of God, sentences from life, and sophisms.

      2.1k
      posts
    3. Brain Games and Others

      Hints and help from other visitors.

      129
      posts
  3. Miscellaneous

    1. Games

      Join mostly role playing games played over several days (eg. Mafia game).

      87.7k
      posts
    2. Homework Help

      This forum is for homework HELP.
      DO NOT do others homework for them.
      DO NOT ask for others to do your homework for you.

      159
      posts
    3. Jokes

      Do you know a good joke? One that is appropriate for kids as well? Share it with the world - post it right here.

      1.9k
      posts
    4. Comments and Suggestions

      Your feedback on what to improve and any questions regarding BrainDen.

      560
      posts
    5. Others

      Share your thoughts on anything else not mentioned in other categories (eg. you can discuss philosophy related questions).

      3k
      posts
    6. Introduce Yourself

      If you want to say hello, share how you got here and what you are looking for in BrainDen forums, then this is the place to do it. One thread per member please.

      332
      posts
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