Room Puzzle

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Across
  1. 4. Instrument
  2. 5. Christmas
  3. 6. The word "Is"
  4. 7. Cubic
  5. 8. Seven?
  6. 9. Codes
  7. 11. Reflect
  8. 12. Wolf howl
Down
  1. 1. Its running out
  2. 2. Self-Aware
  3. 3. Typing
  4. 10. The ___ to 2 + 3 is 5