Vamsi Pavan's Home

Question : There are three men standing in a row. All are wearing hats. The hats were chosen from a set of three black and two white hats. Nobody knows which color he himself is wearing. But the man atContinue reading… Three Gentlemen

Question : There is a game to be played by two players. Each player puts a coin on a circular table one by one. Initially the table has no coins on it. Slowly the table gets filled up. The playerContinue reading… Place the coins

Question : There are hundred prisoners in a jail. The jailor is benign and decides to give them a chance to be free. Here is what he is going to do: make all the prisoners stand in a row soContinue reading… Hundred prisoners

Question : Take this one. You have to ask a single question, whose answer will drive you to the answer of the main question! You have been convicted for some heinous crime. It is your destiny to spend the restContinue reading… An Intellegent Escape

Question : A city has a tyrant king. The king hates people with blue eyes. So one fine day, he commands all blue eyed people to commit suicide. The people are so loyal to him that the blue eyed onesContinue reading… Blue eyed people

Question : Two paratroopers jump from a plane and land on an infinite straight line. They want to find each other. Arrive at an algorithm so that they meet in finite time. You can use only the following type ofContinue reading… Paratroopers

Question : You have a rose garden. You have planted 16 rose plants in a circle. Some of them are red and some are white. These plants are somwhat strange. They flower according to the following rules: 1. Each plantContinue reading… The Rose Garden

Question : There are one thousand bottles of wine. Only one of these bottles is contaminated with a deadly poison. The poison is so potent that even a single drop of contaminated wine can cause death. A scientist wants toContinue reading… Thousand poison bottles

Question : One of twelve pool balls is a bit lighter or heavier (you do not know) than the others. At least how many times do you have to use an old pair of scales to identify this ball? (aContinue reading… Finding defective coin using old weighing machine …

From general knowledge we know that every person has a male father and a female mother, and is not his or her own ancestor. The twelve include five women and their husbands (1) and two other men (2). None ofContinue reading… Twelve Ancestors [clues:trails] — Solution