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?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

In the given picture, you can find two letters missing. When two particular letters are placed in the missing spots, you get an eight-letter word while reading in the anti-clockwise direction. Can you find out the missing letters and the missing word eventually?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

If eleven plus two equals one, what does nine plus five equal?

What do you get if you add 2 to 100 four times?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.