What was Stephen Hawking's favorite childhood song?

The wheels on the chair go round and round.

Your mum is so fat that when she walked past the television, I missed a whole series of SpongeBob.

What’s the difference between KFC and a woman on her period?

One’s finger-licking good and the other is just a fast food restaurant.

So, my mom was talking to me and told me to go to the store. When I get there, there’s a sign, but then someone tells me that’s just someone with a ginormous forehead.

A guy tried to suffocate himself with his BMW exhaust, but his engine failed.

This is the first time German engineering fails to gas someone.

I call this my great talk with Siri.

Me: Hey Siri, give me a "yo mama" joke.

Siri: My mother? Huh?

Me: Did I stutter?

Siri: Interesting question.

Me: It wasn’t a question.

Siri: I’m not sure I understand?

Me: You should understand.

Siri: Hmm... Is there something else I can help with?

Me: No, you b***.

Why do people keep on making jokes about the twin towers?

Because they go down so well.