1. A music key
2. In the dictionary
3. In the mouth.
4. Because it is in the middle of day
5. One powders the face and the other faces the powder.
6. The promise
8. letter M (What comes twice in a moment, once in a minute and never in a hundred years?)
9. A hole
10. letter C (the sea)
12. Because it is in the middle of water
13. The word short become shorter by the addition of a syllable
14. Your name
15. An umbrella.
16. Smoke, your age.
17. Heat, because you can catch cold.
18. A and B, because you say: ABCD (AB see D).
19. O, I, C, U (oh, I see you)
20. Your word.