Answer:
A man who was outside in the rain without an umbrella or hat didn't get a single hair on his head wet. Why?
What is easy to get into, but hard to get out of?
Things here are usually tagged with red stickers.
The person who makes me doesn't need me. The person who buys me doesn't use me. The person who uses me doesn't know it. What am I?
What goes through a door but never goes in and never comes out?
What did the piece of wood say when he saw the screwdriver and screws approaching?