smart jokes:
A neutron walks into a bar and asks for a drink, the the bartender hands him one and says “for you buddy … no charge"
Rene Descartes walks into a bar. The bartender says, "Hey Rene, you want a drink?"Rene replies, "I think not," and disappears.
an infinite number of mathematicians walk into a bar. the first orders a beer, the second orders half a beer and the third orders a quarter of a beer. before the 4th can make his order the bartender says "you're all assholes" and pours two beers