Tres jokes

There was once a Spanish magician. He said, "Uno, dos..." and he disappeared without a tres.

What do you call a woman with three boobs? Tres leches.

A Mexican magician says he will disappear on the count of three. He says, "uno, dos..." and poof! He disappears without a tres.

Why do Mexicans always cross the border in twos?

Because the sign says "No Tres passing."