ALC - Book 1 - Unit 2 - This is my clock

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Across
  1. 4. a timepiece that shows the time of day
  2. 5. question used to ask about something near(3W)
  3. 6. 8, four times two
  4. 8. question used to ask about the time (4W)
  5. 10. 15, five times three
  6. 13. 17, twenty minus three
  7. 15. 1, a single piece
  8. 16. 18, nine times two
  9. 17. 3, two plus one
  10. 18. 2, a pair, one plus one
  11. 19. 9, three times three
  12. 20. 6, half a dozen,
  13. 21. 10, five times two
  14. 22. 0, nothing, 5 minus four
Down
  1. 1. 14, ten plus four, two times seven
  2. 2. 16, twenty minus four
  3. 3. 5, six minus one
  4. 7. 19, twenty minus one
  5. 8. question used to ask about something far(3W)
  6. 9. 20, two tens, five times four
  7. 11. 12, a dozen, four times three
  8. 12. 4, two plus two
  9. 13. 7, five plus two, a unit more than six
  10. 14. 11, ten plus one
  11. 17. 13, ten plus three