Teaser Tuesday! October 14, 2014

Here's something of a long one for everyone. Enjoy!

Note: If you could all please input your answers using the previously noted html code it will allow others to answer without having a spoiler. Copy it verbatim and do not stick any " or ' in your answer and it will work.

Question

There is an island of monks where everyone has either brown eyes or red eyes. Monks who have red eyes are cursed, and are supposed to commit suicide at midnight. However, no one ever talks about what color eyes they have, because the monks have a vow of silence. Also, there are no reflective surfaces on the whole island. Thus, no one knows their own eye color; they can only see the eye colors of other people, and not say anything about them. Life goes on, with brown-eyed monks and red-eyed monks living happily together in peace, and no one ever committing suicide. Then one day a tourist visits the island monastery, and, not knowing that he's not supposed to talk about eyes, he states the observation "At least one of you has red eyes." Having acquired this new information, something dramatic happens among the monks. What happens?

Additional Situations:

1) The tourist says, "There are 10 brown eyed monks"
2) The tourist says, "There are at least two red eyed monks"
3) The tourist says, "There is an odd number of red eyed monks"
4) The tourist says, "There is an even number of red eyed monks"
5) The tourist says, "There is more than one red eyed monk"

Good Luck!