Sir. Groan worthy penguin jokes(https://allwrong.wordpress.com/2007/10/05/penguin-riddles/)
A frothel
GOBBLE GOBBLE Timmy fell in a well GOBBLE GOBBLE breaks turkey's neck no time for your riddles, in the oven you go
Penguini
Because they're afraid of Wales!
Him: Sir, that's an Olsen twin. Me: I'll take it.
Headmaster: I've had complaints about you, Johnny, from all your teachers. What have you been doing? Johnny: Nothing, sir. Headmaster: Exactly.
A: A gorilla with a machine gun.
A crow with a machine gun.
An ironing board.
A *cow*culater. I made it up myself, so don't groan at the pun.