A *cow*culater. I made it up myself, so don't groan at the pun.
Mandel broth Ha ha ha The puns I make up while working as a grocery cashier..
One's a cunning plan, the others a punning clan.
Special branch.
Ctrl - C, Ctrl - V
Sir. Groan worthy penguin jokes(https://allwrong.wordpress.com/2007/10/05/penguin-riddles/)
A math problem.