Answer:
When is homework not homework?
There are 5 sisters in a room: Ann is reading a book, Margaret is cooking, Kate is playing chess, Marie is doing the laundry. What is the fifth sister doing?
How do you discover something that does not exist?
How do you make the number one disappear by adding to it?
On which day of the year do fewest people die?
Not born, but from a Mother's body drawn. I hang until half of me is gone. I sleep in a cave until I grow old. Then valued for my hardened gold.