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• Does playing puzzles and word games really improve your brain power?

  Asked by Dutchess_III | 18 responses

• Do you do the NY Times Mini Crossword puzzle daily?

  Asked by LuckyGuy | 4 responses

• Can you solve this simple geometric puzzle?

  Asked by LostInParadise | 5 responses

• Does anyone know the solution to this minesweeper problem?

  Asked by ragingloli | 12 responses

• How would you do this simple calculation?

  Asked by LostInParadise | 5 responses

• Can you find the two solutions of x+1/x = 5.2 in your head?

  Asked by LostInParadise | 8 responses

• Ready for another test of mathematical intuition?

  Asked by LostInParadise | 4 responses

• Will Shortz puzzle fans, how do you compare to the contestants in the weekly NPR show?

  Asked by LostInParadise | 1 response

• Care to test your mathematical intuition on this simple problem?

  Asked by LostInParadise | 11 responses

• Is this a good math problem?

  Asked by LostInParadise | 2 responses

• Care to try this 3D visualization problem while staying at home?

  Asked by LostInParadise | 5 responses

• Where to find puzzle designers?

  Asked by Jonathan_hodgkins | 4 responses

• Have you ever done a wooden jigsaw puzzle?

  Asked by Jeruba | 10 responses

• Who do you side with here (read more)

  Asked by Demosthenes | 15 responses

• What's the most difficult riddle to solve in the world?

  Asked by luigirovatti | 30 responses

• Is kneeling on a football field an act of domestic terrorism?

  Asked by stanleybmanly from iPhone | 29 responses

• Anyone solve Will Shortz's two week challenge (see details)?

  Asked by LostInParadise | 10 responses

• How are these two things similar? (Redux: want to play a game of similarity?)

  Asked by Soubresaut | 60 responses

• What are word games like in languages other than English?

  Asked by Jeruba | 3 responses

• Can you solve this ditloid?

  Asked by MattJude from iPhone | 17 responses

• Do you have a site where I can get the answer to Will Shortz's NPR puzzle?

  Asked by LostInParadise | 2 responses

• What are your favorite internet mysteries?

  Asked by DrasticDreamer | 10 responses

• Where are the difficult sudoku puzzles with very few numbers in them?

  Asked by flo | 14 responses

• What would happen if some of our avatars morphed?

  Asked by Kardamom | 16 responses

• Philosophical question: do you take one box or two (see details)?

  Asked by SavoirFaire | 73 responses

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