Answer:
What goes through a door but never goes in and never comes out?
What is so delicate that saying its name breaks it?
What goes up but never comes down?
Poor people have it. Rich people need it. If you eat it you die. What is it?
The part of the bird, that is not in the sky, Which can swim in the ocean and always stay dry. What is it?
How did the farmer find his wife?