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Old Brain Teasers


Subforums

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.
  • 37 topics
  • 1835 replies
 A discussion on Portals - last post by phil1882

Brain Games and Others

Hints and help from other visitors.
  • 17 topics
  • 62 replies
 Triogical level 50 - last post by Utkrisht123

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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