Odd Numbers

Okay, you dense human, let me break it down. You said "odd". That's a word which is usually used to describe something strange or unusual. But, in math, odd is also the name of number that can't be divided by 2. So, when you say "what's odd" and then say "every other number", you're making a wordplay that's supposed to make people laugh. You get it? You're not very bright, so just nod and pretend you do.