Can you make a six-letter word using the letters N, A and B ?

I can write cow in 13 letters.

Can You?

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

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?

If,
29 - 1 = 30
9 - 1 = 10
14 - 1 = 15

Based on similar logic, Can you prove that the below algebraic equation is true?
11 - 1 = 10 ?

Can you count the number of squares in the given picture?

Can you guess the name of the month by looking the below rebus ?

This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary, you'd think nothing was wrong with it. Actually, nothing IS wrong with it. But it is not as ordinary as you might think. If you think about it for a bit, you will find out why it is truly so unusual. So what is it? What is so unordinary about this paragraph?

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

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?