Answer:
What can you fill a room with that takes up no space?
What coin doubles in value when half is deducted?
A man was sitting on his couch and searching for the English Channel. How did he find it?
There are 20 birds in a tree. A man comes and shoots one of the birds. How many birds are left?
What is as big as you are and yet does not weigh anything?
Which kind of fruit must have a large wedding ceremony with lots of people in attendance?