Answer:
Dora died at a very old age on her 24th birthday. How can this be?
How can you place a pencil on the floor so that no one can jump over it?
A man was sitting on his couch and searching for the English Channel. How did he find it?
What is the difference between yesterday and tomorrow?
How could all of your cousins have an aunt who is not your aunt?
I am the kind of an ant that's good at math. What am I?