- A boy was driving a car and his father was sitting next to him.They met with a horrible accident.Both of them, the father and the son died on the spot.People around there took both of them to hospital.While looking at son, doctor said, “Oh my god this is my son.” How is that possible while they both died in the accident?
- You have 12 coins.One of them is a bad one, and is either heavier or lighter than the others – you don’t know which.You have a jeweler’s balancing scale – no coins will be weighed; there are just two sides that will either balance or not, according to which coins you put on each side.What is the minimum number of weighings or balancings with which you can find out the bad coin and also tell whether it is heavier or lighter than the others?
- There are no time keeping mechanisms (watch, clock) in a room.There are 2 candles in the same room.Each candle when lit, has its wax completely exhausted in exactly 1 hour.How will you track the passage of 45 minutes? (NOTE : The candles do not burn in a proportional manner i.e.consumption of half the candle doesn’t indicate a passage of 30 min.)
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