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?

If you drop me I’m sure to crack, but give me a smile and I’ll always smile back. What am I?

What can you hold in your right hand, but never in your left hand?

A man is walking down a road with a basket of eggs. As he
is walking he meets someone who buys one-half of his eggs
plus one-half of an egg.
He walks a little further and meets another person who buys
one-half of his eggs plus one-half of an egg.
After proceeding further he meets another person who buys
one-half of his eggs plus one half an egg. At this point, he
has sold all of his eggs, and he never broke an egg.
How many eggs did the man have to start with?

how come the second man dies?

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

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

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

I can be cracked, made, told, and played. What am I?

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?