Who can jump higher than a Mountain?

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

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?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

What do you think with the below Picture ?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

Replace the letters of words with a number so that the below equation holds true

BASE +
BALL
---------
GAMES
----------

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Prove that twice of ten is the same as twice of eleven.

Can you identify the famous TV character from the rebus below?