1. What has 13 hearts but no other organs?

2. If you drop me I'm sure to crack, but smile at me and I'll always smile back. What am I?

3. What building has the most stories?

4. What begins and has no end, and is the ending of all that begins?

5. What goes up when the rain comes down?

6. What has legs but doesn't walk?

7. What kind of room has no doors or windows?

8. What is full of holes but still holds water?

9. What has a thumb and four fingers but is not alive?

10. What can point in every direction but never move?

11. What kind of coat is always wet when you put it on?

12. What gets sharper the more you use it?

13. Forward I am heavy, but backward I am not. What am I?

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

15. What invention lets you look right through a wall?

16. What is always in front of you but can't be seen?

17. Which word in the dictionary is always spelled incorrectly?

18. What runs, but never walks, has a bed but never sleeps?

19. What goes in dry and comes out wet?

20. What begins with T, ends with T, and has T in it?