Clean Jokes

Joke: How do we know policemen are super strong?

Joke: Knock knock!
Who's there?
Ding dong!
Ding dong who?
Ding dong, I just found the doorbell.

Joke: Knock knock!
Who's there?
I.
I who?
Oh my gosh! The amnesia is worse that I thought!

Joke: "Sir, we're mining too many useless minerals!"
Hitler: "Mine less then..."
Awaiting Grammar Nazi barges in!
"Mine Fewer!"
Hitler: Yes?

Joke: What two words can open doors for you for the rest of your life?