Solve the crossword! Solve an anagram from the following letters for the discount code 3rd letter 21d,1a, 20a, 6d, 4a, 18a and 2nd letter 16d, 1st letter 12a.

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Across
  1. 1. A statement that contradicts itself but might be true.
  2. 3. A number-based logic puzzle with a grid.
  3. 4. The foundation of all reasoning and problem-solving.
  4. 7. A hint to help you solve a mystery.
  5. 10. A problem designed to test ingenuity or knowledge.
  6. 11. A maze where you might encounter Minotaurs or confusion.
  7. 12. What you need to do before you solve.
  8. 13. This cube is an iconic puzzle.
  9. 17. The person who solves it all!
  10. 18. A classic question often at the heart of riddles.
  11. 19. Another word for a riddle or a puzzling question.
  12. 20. Rearrange the letters of a word to form another.
  13. 22. The title of the book and a competition for the clever.
Down
  1. 2. What’s asked to test your wit or intellect.
  2. 5. A coded message waiting to be cracked.
  3. 6. A journey in search of answers, often metaphorical.
  4. 7. What each puzzle represents.
  5. 8. Sherlock Holmes’ preferred method of solving mysteries.
  6. 9. The most important tool for solving riddles and puzzles.
  7. 14. Often needed to unlock the solution to a puzzle.
  8. 15. A puzzle where pieces fit to form a picture.
  9. 16. A plan for solving problems step by step.
  10. 21. What you hope to find at the end of a riddle.