Pun-ishment: The Professor's Punderful Puns

Pun-ishment 2: More Puns to Ponder

A professor of punderful proportions, I've got a punderful problem for you: why did the cat join a band? Because it wanted to be the purr-cussionist, of course!

Pun-ishment 3: A Punderful Pun-rant