25. Descartes
So Descartes goes into a bar late one night for a beer. At closing time, the bartender makes the Last Call and asks him, “Get you another?” Descartes replies, “I think not.” And disappears.
I think, therefore I am. Or am I…
![25 Funniest Math Jokes, Riddles and Pick up Lines Ever](https://imonkey-blog.imgix.net/blog/wp-content/uploads/2017/04/13052637/shutterstock_81841222-474x600.jpg?auto=fortmat&fit=clip&expires=1753142400&width=480&height=607)
Georgios Kollidas/Shutterstock.com