What did the doctor say when the nurse told him the invisible man was there?

People are so hard on car mechanics.

Why did the coal worker never sing the melody in the choir?

Why are the brother and sister always cold?

What three words can solve all of Dad's problems?

Why don't oysters share their pearls?

Why are math teachers such big online shoppers?

Which celebrity is a cheese expert?

What table can you never sit at?

Where do kitties put their Christmas presents?

Why do you put peanut butter in the road?

What do you call it when a cat is not environmentally friendly?

Why do optometrists love to vacation in the Caribbean?

Which animal is the leader of the mafia?

Which rock group consists of four men that don't sing?