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?

Which tank will fill first?

Count the number of lines in the image below ?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

John was piloting a plane behind a car but was never able to overtake it. Why?

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

What does this rebus mean?

O
N
C
E
TIME

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?

Be active and find the killer in the picture Riddle below.