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?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

My cousin lives in one story house in Antarctica. His house is made the of-of sandstone. what is the color of stairs?

On my way to St. Ives I saw a man with 7 wives. Each wife had 7 sacks. Each sack had 7 cats. Each cat had 7 kittens. Kittens, cats, sacks, wives. How many were going to St. Ives?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

Why Wine Glass Stem is so long?

Prove that the below maths equation is true.

8 + 8 = 91

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

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?