Source: Rocky Mountain J. Math. Volume 35, Number 5 (2005), 1787-1793.
Daca il are sau poate ca cineva sa faca rost, nu ezitati!
An infinite number of mathematicians walk into a bar. The first one orders a beer. The second orders half a beer. The third, a quarter of a beer. The bartender says “You’re all idiots”, and pours two beers.