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?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Steffi's daughter Jazelle needs to be picked up from school every day.
Steffi asks one of her colleagues to pick up Jazelle from the school. Steffi devised a password system to confirm that Jazelle goes with the correct colleague only.

The password on Monday was SJM16.
The password on Wednesday was TAW39.

What will the password be for Friday?

Replace the question mark in the picture below.

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)

Identify the hidden meaning behind this picture?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.