Answer:
Why did the computer keep sneezing?
I am heavy forward, but backward I'm not. What am I?
You cannot keep me until you have given me. What am I?
You can build or destroy. Let creativity soar but be careful at night.
If you have me you want to share me. If you share me you don't have me. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?