Answer:
You draw a line. Without touching it, how do you make the line longer?
An archaeologist digs up two perfectly preserved bodies. He immediately identifies them as Adam and Eve. How can he tell they are Adam and Eve?
There are 20 birds in a tree. A man comes and shoots one of the birds. How many birds are left?
What goes up and never comes down?
You have a bucket full with 5 gallons of water. What can you ADD to it in order to make it 3 gallons?
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.