1. What has keys but can’t open locks?

2. What can run but never walks, has a mouth but never talks?

3. What comes once in a minute, twice in a moment, but never in a thousand years?

4. What gets bigger the more you take away?

5. What has a neck but no head?

6. What belongs to you but is used more by others?

7. What gets sharper the more you use it?

8. What can be cracked, made, told, and played?

9. What gets wetter the more it dries?

10. What can be filled with water but is full of holes?