Its just fun to test yourself, don't take it too seriously.
Teasers - Part 5
1: Stop looking for it.
2: The fact they live on it - Earth.
3: Noel (No L).
5: Because is was not his, it was Schubert's.
6: To light it.
7: Because it is H to O (H2O).
8: At the nearest police station.
9: Not if you are a mouse.
10: Yes Unquestionably.
11: A bad spell.
12: Yes it is always a horse that wins the Derby.