The Twelve Days of Crisp Math – Day 9

You’ll go head-over-heels for the joke we’ll use to celebrate the Ninth Day of Crisp Math.

There were 99 people on a boat. The boat flipped over. How many people were left?
66!

This reminds of a joke (as it were) that my mom used to tease me with.

Pete and Repeat were on a boat. Pete fell out. Who was left?

[Repeat.]

Pete and Repeat were on a boat. Pete fell out. Who was left?

[Repeat.]

Pete and Repeat were on a boat. Pete fell out. Who was left?

…