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?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

A bomb goes off.
Carnage.
One person, only a few feet away, survives! How can this be?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Rearrange the letters in "new door" to make one word.

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

You have to put a letter on the following to make it a meaningful word. The only challenge is that you can't use 'E'.

S E Q U E N C _