National Puzzle Day

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Across
  1. 1. Paper or plastic?
  2. 5. Tournaments.
  3. 8. Strategy.
  4. 9. 90 degrees.
  5. 10. Impossible.
Down
  1. 2. Helps with cognitive thinking.
  2. 3. A simpler version.
  3. 4. Rearrange the letters.
  4. 6. What are you doing?
  5. 7. Hot and cold.