The questions we have about numbers are uncountable. But here are a few of them: Where does zero come from? How is there more than one kind of infinity? What is it like to do math when numbers have different colors — and personalities?

How do flowers get their smells?
24:21

It's time for the....Mystery Sound Extravaganza!
34:01

Why do we have Daylight Saving Time?
23:55