A *cow*culater. I made it up myself, so don't groan at the pun.
On ChinkedIn of course. (I know the pun is racist but I had to share. Sorry.)
He couldn't take a joke.
A pirate aye!
2scooby4doo
A groan up!
Sir. Groan worthy penguin jokes(https://allwrong.wordpress.com/2007/10/05/penguin-riddles/)
Math problems actually exist
A math problem.