How come there are no knock-knock jokes about America?

Because freedom rings.

 

A. Why did the chicken cross the road?

B. To get to a really gullible guy’s house.

A. Knock Knock.

B. Who’s there?

A. The chicken.

 

The guy who invented knock-knock jokes deserves a no-bell prize.

 

Knock Knock.

Who’s there?

Opportunity.

Don’ be silly.  Opportunity never knocks twice.

 

Thanks, Cindy!