what did the atom say to the positive in math class. We could make a positive number
Which sex position produces the ugliest children?
Go ask your mother.
Why are quantum physicists so poor at sex? -- Because when they find the position, they can't find the momentum, and when they have the momentum, they can't find the position.
Two hydrogen atoms walk into a bar. One turns to the other and says, "I think I've lost my electron." The other asks, "Are you sure?" "Yes," the first says, "I'm positive."
What do you call a fruit that argues against the position it supports?
The Devil's advocado.