Challenge jokes

A man with no arms is tasked with a lot of jobs. Then he says to his boss, "I can't handle all of this!"

I have just started a sexual relationship with a blind woman. It's very rewarding, but quite challenging.

Took me ages to get her husband's voice right.

Chuck Norris wins a staring contest. -- Against Medusa.

What is the hardest part of twerking?

Being black.