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This is an encore episode of Ask Me Another.

From NPR and WNYC, coming to you from beautiful Brooklyn, New York.

It's NPR's hour of puzzles, word games, and trivia, Ask Me Another.

I'm Jonathan Colton.

Now here's your host, O'Fira Eisenberg.

Hello, Jonathan. Hi, Afira.

Do you know what I've been doing, Jonathan, a hydration challenge?

You've been doing a hydration challenge. What's the...

The lowest form of challenge.

What's the challenge?

The challenge is to just drink 76 ounces of water a day.

And how do you portion out these ounces of water?

Do you have a schedule?

I have an hydration app that you log in, very satisfying.

It's got a good graphic on it, so it feels, you know,

feels more, it's a professional. I feel like I'm professionally drinking water. I'm drinking

on an expert level. But also I've noticed this interesting, I don't know what the algorithm

is, but of course, if you put in, I drank 10 ounces

of water. It says you've, you know, you're this far. The little thermometer increases. But if you

...