Intelligence Agency need to break the vault but the problem is that they are not able to break the vault.

On the vault, a text is written as:

31 11 33 33 43 45
21 25
31 24 11 31 51 41

To Break the code Intelligence Agency brings a mathematician named Joseph.
Minutes later he deciphers the code.

Whats the code?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

Find the Goldfish below the given Image.

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

This is a simple one. You just have to count the number of Fs in the given sentence.

Finished Files are the result of years of scientific study combined with the experience of years.

How many did you count?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

I’m tall when I’m young, and I’m short when I’m old. What am I?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?