One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

What occurs twice in a week, once in a year but never in a day?

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

I have teeth but i don't bite. Who Am I ?

Assume the given figure to be a delicious doughnut. Yes, now you can concentrate more on the puzzle. So you have this delicious doughnut in your refrigerator when your friends come knocking at the door. There are eight of them. Now you have to make three cuts in this doughnut so that each one of you nine people can enjoy a piece of it. Neither you nor your friends would mind the size of their piece as long as they are getting it. How will you do it?

Out of the nine cats that you can see in the picture, there are only two that are completely identical. Can you find them out?

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?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?