A dealer has 1000 coins and 10 bags. He has to divide the coins over the ten bags, so that he can make any number… Read More »
A man has a medical condition that requires him to take two kinds of pills, call them A and B. The man must take exactly… Read More »
There are 25 horses among which you need to find out the fastest 3 horses. You can conduct race among at most 5 to find… Read More »
You have 5 jars of pills. Each pill weighs 10 grams, except for contaminated pills contained in one jar, where each pill weighs 9 grams.
There is a room with a door (closed) and three light bulbs. Outside the room there are three switches, connected to the bulbs. You may… Read More »
Suppose you’re on a game show, and you’re given the choice of three doors: Behind one door is a car; behind the others, goats. You… Read More »
You have 240 barrels of wine, one of which has been poisoned. After drinking the poisoned wine, one dies within 24 hours.
An employee works for an employer for 7 days. The employer has a gold rod of 7 units. How does the employer pays to the… Read More »
Two trains are on same track and they are coming toward each other. The speed of first train is 50 KMs/h and the speed of… Read More »
Alok has three daughters. His friend Shyam wants to know the ages of his daughters. Alok gives him first hint.
How do we measure forty-five minutes using two identical wires, each of which takes an hour to burn. We have matchsticks with us.