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  1. Ancient Logic Puzzles: The Earliest Forms - Puzzle Genius

  2. History of Brain Teasers: Ancient Enigmas to Modern Puzzles

  3. Ancient puzzles : classic brainteasers and other timeless …

  4. 10 of the Greatest Puzzles in History - Mental Floss

  5. 11 of History's Toughest Riddles - Mental Floss

  6. The Story of Puzzles: From Ancient Riddles to Modern Wonders

  7. Ancient Puzzles: Classic Brainteasers and Other Timeles…

  8. The Fascinating History of Puzzles and Brain Teasers

  9. History of logic | Ancient, Medieval, Modern, & Contemporary Logic

  10. Games for Your Mind: The History and Future of Logic Puzzles