**A 52 Card Conundrum**

I'm going to hand you a deck of normal playing cards-- 52 cards and no jokers. You're going to be placed into a darkened room. You'll also be blindfolded, and you'll be naked. The deck of cards will have 13 of the 52 cards turned face up. They're all mixed up in the deck. You don't know where they are. And you can't tell. Your challenge is to arrange the cards in two piles so that each pile has the same number of cards facing up.

If you've heard this before, please refrain from spoiling the fun, at least for a little while.

I'm going to hand you a deck of normal playing cards-- 52 cards and no jokers. You're going to be placed into a darkened room. You'll also be blindfolded, and you'll be naked. The deck of cards will have 13 of the 52 cards turned face up. They're all mixed up in the deck. You don't know where they are. And you can't tell. Your challenge is to arrange the cards in two piles so that each pile has the same number of cards facing up.

If you've heard this before, please refrain from spoiling the fun, at least for a little while.

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