Answer:
Whatβs the size of an elephant but weighs nothing
What is a witch's favorite school subject?
What animal turns about 200 times around its axis after it dies?
What four letters frighten a thief?
What do birds say when they fly home?
Iβm hard as a rock and as light as a feather. Iβm passed on to one another. Poor people need me and rich people have me.