One's a prime number, the other's a prime minister.
You stop milking a cow after 10 years.
There's no way Eric Clapton would let a bag of cocaine fall out of a window!
A slantelope.
The cow has the udder.
Why are you skipping numbers girl 1: Because I can't even!!!
Because it's undefined.
The higher they are, the more spaced out they get
One's a digit divisible by two, the other is a prime number.
Because there's only 2 factors involved.
In the Conservatory!