Why did the chicken cross the Mobius strip? To get to the same side.
Why did the chicken cross the road? Issac Newton: Chickens at rest tend to stay at rest, chickens in motion tend to cross roads.
A neutron walks into a bar; he asks the bartender, "How much for a beer?" The bartender looks at him, and says "For you, no charge."
Two fermions walk into a bar. One orders a drink. The other says "I'll have what he's having."
Two atoms bump into each other. One says "I think I lost an electron!" The other asks, "Are you sure?", to which the first replies, "I'm positive."
Renee Descartes walks into a bar, the bartender says "sir can I get you a martini "Descartes says "I don't think..." and he disappears
Where does bad light end up? Answer: In a prism!
Heisenberg is out for a drive when he's stopped by a traffic cop. The cop says "Do you know how fast you were going?" Heisenberg says "No, but I know where I am."