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  3. Brain Teasers, Puzzles and Games for Teens and Adults

  4. 14 Visual Puzzles and Brainteasers That Will Challenge Your Mind

  5. 105 Challenging Riddles for Adults (With Answers) - Good Housekeeping

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  7. 25 Logic Puzzles (with Answers) for Adults - Parade

  8. 12 Best Brain Games for Adults to Improve Memory & Focus

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