Answer:
What kind of cheese is made backwards?
I go up and never come down no matter how hard you wish. As I get higher, more wrinkles crawl on to the face. What am I?
What three letters change a boy into a man?
I don't live within a house nor do I live without. Most will use me when they come in and again when they go out.
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves every day. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?