escape room puzzle

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Across
  1. 3. The killing of one human being by another.
  2. 4. A question, problem or riddle.
  3. 8. A small piece of shaped metal with incisions cut to fit a lock.
  4. 9. A piece of evidence or information.
  5. 10. Something that is kept unknown by others.
  6. 12. A question or statement intentionally phrased so as to require ingenuity in ascertaining its answer or meaning.
Down
  1. 1. A long or arduous search for something.
  2. 2. To separate into parts.
  3. 3. Paths and hedges designed as a puzzle.
  4. 4. Uncontrollable fear or anxiety.
  5. 5. Keeping a door or window fastened.
  6. 6. A person employed by a government or other. organization to secretly obtain information on an enemy or competitor.
  7. 7. A large room or chamber used for storage.
  8. 11. A small room in which a prisoner is locked up.