004 [Picarat] | Text

[professorgent]

I was wondering if anyone would indulge me with a riddle or puzzle. Or perhaps, I could offer some to those who would like one.

[a pause]

I always found that if one keeps their mind busy, the pain one is feeling seems to lessen.

Comments

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[the_daybreak]

Have you come up with any new ones, Professor?

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[professorgent]

A few, yes. I've also been jotting down some that I've recalled from over the years. Would you care to hear one?

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[the_daybreak]

Sure, if you've got one you think I'll like.

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[professorgent]

Here's a card puzzle I gave Clive the other day:

A blind-folded man is handed a deck of 52 cards and told that exactly 10 of these cards are facing up. How can he divide the cards into two piles (possibly of different sizes) with each pile having the same number of cards facing up?

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[the_daybreak]

[He thinks it over, visualizing the problem in his head. It takes him a moment, but then it dawns on him and he begins to type.]

He can divide the cards into 10 and 42, then flip the 10 pile.