11. Mind Gym

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Across
  1. 2. Hint for solving
  2. 3. Numbers subject
  3. 7. Gain knowledge
  4. 9. Unit of speech
  5. 10. Find an answer
  6. 12. Use the mind
  7. 14. Short test
  8. 15. Organ for thinking
Down
  1. 1. Game to solve
  2. 4. Measure of knowledge
  3. 5. Activity for fun
  4. 6. Pages to read
  5. 8. Short writing
  6. 11. Way of reasoning
  7. 13. Thought or plan