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?

Forwards I am heavy, backward I am not. What am I?

Identify the movie name through below Rebus containing Pi Mouse and coconut tree..

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?

The more you take me, the more you leave me behind.
Who Am I?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

Which digit occurred maximum times between the number 1 and 1000?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?