Interview Riddles

Interview riddles are famous questions asked during interviews by some big companies like Google, Microsoft, Intel etc.

3000 Bananas and Camel

You have 3000 bananas and a camel. You wish to transport the bananas to a place 1000 miles away, using only the camel as the mode of transportation.

The camel can only carry a maximum of 1000 bananas at a time, and will eat one banana every mile it travels. The camel will not go anywhere if it does not have any bananas.

You can load and unload as many bananas as you want anywhere. What is the maximum number of bananas that can be transferred to the destination using only the camel?

Riddle Answer

100 Blue Eyes

On a certain island there are people with assorted eye colors. There are 100 people with blue eyes and 100 people with brown eyes. Since there are no mirrors on this island, no person knows the color of their own eyes.

The people on the island are not allowed to talk or communicate with each other in any way. They are also not aware of the number of blue or brown eyed people on the island. For all they know, they could have red eyes too. But they are allowed to observe other people and keep count of the number of people with a certain eye color. There is a rule that the people on the island have to follow – any person who is sure of their eye color has to leave the island immediately.

One day, a person comes to the island and announces to the people that he sees someone with blue eyes. Everyone knows that the person only speaks the truth. What do you think happens?

Riddle Answer