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?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

Complete the following series. It.s very logical:

1, 4, 5, 6, 7, 9, 11, __?

Solve below rebus puzzle?

What kind of band never plays music?

What has many teeth, but cannot bite?

Five lovely ladies(Sophia, Isabella, Madison, Emma and Olivia) planned a picnic.

They each buy one thing each for the picnic.

Sophia, Emma and Olivia got a drink : orange-Juice, apple-juice, and mango-juice.
Olivia got the drink with the same letter as the one in her first name.
Emma loves mango-juice.
The other two bring some food : chocolates and pizza.
Also Madison is allergic to cheese.

So which ladies bought what ?

John has eleven friends. He has a bowl containing eleven apples. Now He wants to divide the eleven apples among his friends, in such a way that an apple should remain in his bowl.
How can He do it?

Who has married many women but was never married?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?