Across
- 3. A task requiring effort or skill to complete.
- 6. Secret underground chamber.
- 8. Complex network of passages; a maze.
- 9. A hint or piece of information to solve something.
- 10. A short test of knowledge.
- 11. A puzzle or mystery to solve.
- 13. Something unknown or hard to explain.
- 15. The solution to a question or problem.
- 18. Letters arranged to convey meaning.
- 19. To mix up or jumble letters or objects.
- 20. An answer or solution to a code.
Down
- 1. A system of symbols for communication.
- 2. Logical organ used for thinking.
- 3. A secret or disguised way of writing.
- 4. The arrangement of squares in a crossword.
- 5. Mythical creature known for riddles.
- 7. Something that confuses or challenges the mind.
- 8. A single character of an alphabet.
- 12. A word or phrase formed by rearranging letters.
- 14. The study of valid reasoning.
- 16. To form a word by letters.
- 17. A tricky question requiring thought to answer.