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• Can you find the fallacy in this inductive argument that all things are the same?

  Asked by LostInParadise | 3 responses

• What do you think of this solution to Newcomb's Paradox?

  Asked by LostInParadise | 24 responses

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

  Asked by luigirovatti | 30 responses

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

  Asked by SavoirFaire | 73 responses

• My life without you is just like a car without _______?

  Asked by Akane | 28 responses

• Can you solve this easy brain teaser?

  Asked by LostInParadise | 17 responses

• What theme or special property do these five words share?

  Asked by drdoombot | 25 responses

• Can you help me solve this WordPlay problem?

  Asked by Jeruba | 28 responses

• What is the origin behind illogical puzzles in video games?

  Asked by AshlynM | 9 responses

• What are your favorite internet mysteries?

  Asked by DrasticDreamer | 10 responses

• Do you love a puzzle?

  Asked by TheProfoundPorcupine | 19 responses

• Did you realize that there are 21 states whose names end in the letter a?

  Asked by LostInParadise | 8 responses

• While times are tough, will we see an upsurge in interest in jigsaw puzzles?

  Asked by Jeruba | 9 responses

• Can you figure out my variation on a colored hat problem?

  Asked by LostInParadise | 2 responses

• Can you solve this ditloid?

  Asked by MattJude from iPhone | 17 responses

• What's you favourite board game and why? Nostalgia, Kids like it, challenging or just plain fun?

  Asked by Zen_Again | 37 responses

• Can you solve this riddle? (details)

  Asked by blueberry_kid | 37 responses

• How do you organize when doing a jigsaw puzzle?

  Asked by JLeslie from iPhone | 15 responses

• What are some brain exercises for brain workout that really work?

  Asked by gamefu91 | 18 responses

• Do you play Sudoku?

  Asked by LittleLemon | 20 responses

• How do you multiply "diamond" by three?

  Asked by hannahsugs | 18 responses

• Care to try a math problem that may be a little more difficult than it at first appears?

  Asked by LostInParadise | 6 responses

• For two planets orbiting the sun, do you see why it makes sense to speak of the planets as revolving around each other?

  Asked by LostInParadise | 21 responses

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

  Asked by LostInParadise | 8 responses

• Logic problem: How will the robbers divide the loot?

  Asked by PhiNotPi | 27 responses

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