(adsbygoogle = window.adsbygoogle || []).push({}); In the middle of the ocean there is a small island where there are a number of people living. They all are devoted to a very strange and specific religion, of which there is one simple rule:

"If you ever find out that you have blue eyes, you must kill yourself at midnight that night."

To get around this rule (and make sure all their friends don't kill themselves), nobody talks about the eye colour of anyone on the island, and nobody possesses any mirrors or other ways of accidentally finding out their own eye colour.

Every day when the sun is highest in the sky, all the residents of the island congregate in one area of the island so that every single one of them can see every other person on the island, and more importantly, what eye colour they have.

One day, whilst everyone is at this congregation, a foreigner arrives, and states to everyone (so that everyone can hear him) "I can see at least 1 person with blue eyes". He then leaves.

All the people are perfect logicians, if a conclusion can be logically deduced, they will do it instantly. Let us suppose that there are 100 blue eyed people on the island, and 100 brown eyed people. Knowing this, can you work out how many people kill themselves, and on which night they do it?

Before you answer, know that this is not a trick question, and the answer is logical. It doesn't depend on tricky wording or anyone lying or guessing, and it doesn't involve people doing something silly like creating a sign language or doing genetics. The foreigner is not making eye contact with anyone in particular; he's simply saying "I count at least one blue-eyed person on this island who isn't me."

Also, even though we know that there are 100 blue eyed and 100 brown eyed people on the island, this is not common knowledge to the people themselves. For example, a blue eyed person on the island cannot deduce he is blue eyed by simply counting the number of other blue eyed people; he has no idea exactly how many blue eyed people (or brown eyed people) are on the island.

And lastly, the answer is not "no one kills themselves."

I've seen the original riddle before. It took me forever to come up with an answer. It was wrong kay:

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Some people would actually like the challenge of having a puzzle that logical thinking is needed in order to solve it.
You're just a faggot.

That looks way too advanced for me.

That logic renders your post useless then.

yay fionnnnnnnnnnnnnn!