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Welcome to BrainDen.com - Brain Teasers Forum

Welcome to BrainDen.com - Brain Teasers Forum. Like most online communities you must register to post in our community, but don't worry this is a simple free process. To be a part of BrainDen Forums you may create a new account or sign in if you already have an account.
As a member you could start new topics, reply to others, subscribe to topics/forums to get automatic updates, get your own profile and make new friends.

Of course, you can also enjoy our collection of amazing optical illusions and cool math games.

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Thanks and enjoy the Den :-)
Guest Message by DevFuse
 

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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.

  • 12967 topics
  • 191004 replies
Stand and topple - last post by TimeSpaceLightForce

New Word Riddles

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

  • 1211 topics
  • 24570 replies
riddles - last post by gavinksong

New Optical Illusions

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

  • 29 topics
  • 201 replies
Crazy Circle Illusion! - last post by Jbrain

Other Mind Boggling Stuff On Web

Anything else on the web that is worth mentioning.

  • 18 topics
  • 130 replies
My facebook pages - last post by Utkrisht123

Toggle Old Brain Teasers Old Brain Teasers

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Puzzles and Riddles (section closed)


  1. Logic Puzzles,
  2. Logic Problems,
  3. Water and Weighing Puzzles,
  4. Einstein's Riddles,
  5. Number Puzzles,
  6. River Crossing Puzzles,
  7. Puzzle Championship Teasers,
  8. Geometry/Dissection Puzzles,
  9. Matchstick Puzzles,
  10. Cryptograms and Algebra Puzzles

My favorite puzzles sorted in several subforums.

  • 171 topics
  • 6869 replies
Matchstick Equation - last post by hishanghai

Paradoxes

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

  • 42 topics
  • 1880 replies
Unstoppable Force/Immovable... - last post by Kikacat123

Brain Games and Others

Hints and help from other visitors.

  • 21 topics
  • 65 replies
Play Fun Brain Games Keep O... - last post by Justwatch

Google Gadgets

Comments on 4 gadgets of mine - Brain Teasers, Puzzles & Riddles, Famous Optical Illusions and Chuck Norris Facts.

  • 2 topics
  • 44 replies
My Google Gadgets in Your L... - last post by Gana Yaswanth

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Games


  1. Goodies,
  2. Baddies

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

  • 210 topics
  • 85510 replies
Games to Come (e.g. Mafia) - last post by Yoruichi-san

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.

  • 14 topics
  • 124 replies
Writing an Essay - last post by Kuch Marida

Jokes

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

  • 52 topics
  • 1800 replies
Blonde Jokes - last post by kevin83

Comments and Suggestions

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

  • 52 topics
  • 499 replies
​ Symbols appearing when... - last post by rookie1ja

Others

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

  • 61 topics
  • 2881 replies
The Seven Mysteries of Brai... - last post by flamebirde

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.

  • 54 topics
  • 241 replies
Hi -- I've created a li... - last post by atorch



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