A bad king has 1000 bottles of very expensive wine. A neighbouring King plots to kill the bad king and sends a servant to poison the wine. Unfortunately the bad king’s guards catch the servant after he has only poisoned one bottle. Alas, the guards don’t know which bottle but know that the poison is so strong that even if diluted 1,000,000 times it would still kill the king. Furthermore, it takes one month to have an effect. The bad king decides he will get some of the prisoners in his vast dungeons to drink the wine. Being a clever bad king he knows he needs to murder no more than 10 prisoners – believing he can fob off such a low death rate – and will still be able to drink the rest of the wine at his anniversary party in 5 weeks time. Explain How ?

You’re in a completely black room. Scattered on the floor are 100 coins – 90 of these are heads up and 10 of these are tails up. You are unable to distinguish which coins are heads or tails by touch or any other method you can think up like by touching etc.How do you separate the 100 coins into 2 piles, so that both piles contain the same number of face up tails?

How can you get a fair coin toss if someone hands you a coin that is weighted to come up heads more often than tails?

You are given 2 eggs.And there’s 100 floor building. Eggs can be very hard or very fragile means it may break if dropped from the first floor or may not even break if dropped from 100th floor.Both eggs are identical.You have to find the highest floor from which the egg can be dropped without breaking.What is the minimum number drops you need to make. You are allowed to break 2 eggs in the process.

There are 25 horses among which you need to find out the fastest 3 horses. You can conduct race among at most 5 horses in a single race to find out their relative speed. At no point you can find out the actual speed of the horse in a race. Find out minimum number of races are required to find the 3 horses.

The owner of a banana plantation has a camel. He wants to transport 3000 bananas to a market, which is located after the desert. The distance between his banana plantation and the market is about 1000 kilometer. So he decided to take his camel to carry the bananas. The camel can carry at the maximum of 1000 bananas at a time, and it eats one banana for every kilometer it travels.
Here’s what you have to find – What is the largest number of bananas that can be delivered to the market?