Rene Descartes walks into a bar. The bartender approaches him and askes, “Ah, good evening Monsieur Descartes! Shall I serve you the usual drink?” Descartes replies “I think not,” and promptly vanishes.
Three mathematicians walk into a bar. You’d think the third one would have ducked.
An infinite number of mathematicians walk into a bar. The first orders a beer. The second orders half a beer. The third orders a quarter of a beer. Before the next one can order, the bartender says, “You’re all assholes,” and pours two beers.
A dyslexic mathematician walks into a bra.
A mathematician, a physicist, and an engineer walk into a bar. The barman looks at the three and says, “Is this some kind of joke?”
The infinitely-manied version was told to me by Tyler Ernest.