Answer:
I am lighter than air but a hundred people cannot lift me. Careful! I am fragile!
I am a certain five-letter word and become shorter when you add two letters to me. What am I?
You seek me out when your hunger's ripe. I sit on four legs and smoke a pipe.
A man who was outside in the rain without an umbrella or hat didn't get a single hair on his head wet. Why?
I am cracked by Indiana Jones.
What did the piece of wood say when he saw the screwdriver and screws approaching?