Brain Teasers and Puzzles

ok, here's one I was given at work today. Four hostages are buried up to their necks in the ground, in a roughly straight line. One of them is seperated by a wall to the other three. As below A || B C D They are all facing the wall. The terrorists have four hats, 2 black, 2 white, which are placed on the hostages. A and C have white hats on, B and D are wearing black hats. They are not allowed to talk, and they can not move their heads. The wall has no reflective surfaces or holes. They are told that they will die unless one of them correctly shouts the colour hat they are wearing within 10minutes. After 1 minute one of them calls out. …

here is a series of riddles/puzzles. Solve the puzzle on one page to get to the next page. check the hints if you want, it'll clarify some things. just don't look for an faq. good luck....

i went with my friend and his wife to the coffee shop. the coffee was brought when my friend's wife was in the wash room. it was steaming hot while the milk was cold.we mixed the coffee and milk and started drinking. (considering the fact that i prefer my coffee without milk, take this case as an exception.) now, i wanted to keep the coffee and milk mixed for his wife but my friend said it would be better to keep it separate till she came back as it would be hotter if it was mixed after she came than it were mixed right then. who is right?

Einstein wrote this riddle last century and said that 98% of the world’s population would not be able to solve it. Are you a part of that 98%? * There are 5 houses that are each a different colour. * There is a person of a different nationality in each house. * The 5 owners drink a certain drink. They each smoke a certain brand of cigarettes and also have a certain pet. No owner has the same pet, smokes the same brand of cigarettes nor drinks the same drink. The question is. “Who has the fish?” CLUES 1. The British man lives in the red house. 2. The Swedish man has a dog for a pet. 3. The Danish man drinks tea. 4. The …

When I Was Kid..... I Got Married. I Had A Son Called Simon..... When He Was 19 He Got Mad And Married Catherine ...... When He Was 30 He Died Dirty. My Wife Died At 40 ... Leavin Simons Wife Behind Me. Now I Married Catherine And We Had A Child.... How I Am Related To My Child's Child.... And How To My Son-in-brither -in-law ???

This is taken from a puzzle book. I used to have 750 marbles in my bedroom but I lost some. The number of marbles remaining is one more than a multiple of three, three more than a multiple of five, five more than a multiple of seven, and seven more than a multiple of eleven. How many marbles did I lose?

It’s amazing that all hard trays you make, it’s no possible to see the truth . http://web.mit.edu/persci/people/adelson/checkershadow_illusion.html Amaze you!

I just thought that I would post some puzzles. These are pretty easy ones, but they are nice to get the brain cells ticking for a few moments. If anyone else has any Puzzles, please post them in this thread, and then I will add them to this Opening Post. If the thread is popular enough, I will split it later into a "Puzzles" and a "solutions to puzzles" thread to make for easier reading. (1) You have in front of you a balance scale and 18 apparently indentical coins. One of these coins is a forgery although it looks exactly like the other 17 coins: the only difference is that the fake coin weighs less than the normal coins. Your task is to sift out the coin in the lea…

Some of you may have seen this before, but for those who haven't this is supposedly a puzzle written by Einstein, and he supposedly predicted that 98% of people wouldn't be able to figure it out. I seriously doubt that Einstein is the actual author of this puzzle, and I expect Snopes.com to debunk this claim someday, but nevertheless the puzzle is a decent one, so here goes: