But How?

Hmm 500 foot tall shack, sunroof in room with switches. Position of lights is irrelevant. Were any of the lights on before the man entered the shack?

Anyone get this right yet?

Yes, I got it right.

hint:
The sunroof is only active during daytime, and the sprinklers go off in the nighttime.

I like the way BoB keeps adding stipulations as it goes, seemingly to refute answers he's already received that are completely plausible based on the information in the original post.

One of the switches is turned up, and one of the lights is on. The other two are stupid.

he has night vision goggles....

Ok, he goes into the switch room first. He turns one switch to the on position. He turns another to the off position. He sits in the room for two hours waiting then turns the third light on. He then runs to the other room, feels which of the two illuminated bulbs is hot to the touch, and then knows which is which.

The riddle says "straight away," which I interpreted to mean "instantly."

He installed them?

Quote:

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Originally Posted by eestlinc

Ok, he goes into the switch room first. He turns one switch to the on position. He turns another to the off position. He sits in the room for two hours waiting then turns the third light on. He then runs to the other room, feels which of the two illuminated bulbs is hot to the touch, and then knows which is which.

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Quote:

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Originally Posted by BoB

OK, if you already know this one, please don't ruin it for other people or anything. That would suck. If you don't know it but think you know the answer, then PM me. You get one guess. Well, you can have one guess per 30 posts in this thread.

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Luckily I PMed him this answer before you posted it :cool:

I like Meat Puppet's answer.

Also, a little nit-picky... how is it that there is a two-room shack where one is forced to go outside to get from one room to the next? Wouldn't that be two seperate buildings?