Answer:
What language does a billboard speak?
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 invention lets you look right through a wall?
I am constantly overlooked by everyone but everyone has me. What am I?
I can climb mountains, cross streams, handle hundreds of feet each day, yet I never move. What am I?
I flow from the Homerβs mouth when he sees doughnuts.