You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?

A man plots the murder of his wife. His plan is full proof. Nobody saw them leaving their house. He stabbed her with a knife while driving. She died on the spot. He threw her body in a valley. He threw the knife carefully wiping his finger prints on a random garbage bin. Then he went back to his home and no one was watching him this time as well.

After an hour, he was called by the local police department who informed him that his wife was murdered. They asked him to reach the scene of crime immediately. But as soon as he arrived at the crime scene, he was arrested by them.

How did the police know that he himself is the murderer?

Look at the picture and find out which square is not linked with any of the other squares.

What do you see in the given picture?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?

10+10 and 11+11 can give you the same answer.

Explain how?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

What 5-letter word typed in all capital letters can be read the same upside down?

How many sides does a circle have?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?