If you say my name, I will no longer exist. What am I?

A man has eighty-one cows ( numbered 1,2,3...81 as such). The beauty is that cow no. 1 gives 1ltr of milk, cow no. 2 gives 2ltrs of milk and so on. The man wants to equally distribute the cows among his nine sons so that each one of them gets the same quantity of milk.

Count the number of squares in the picture below.

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Make a sentence consisting of three words that have the whole alphabet.

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

On a charity event in Russia, Murray beat Djokovic by winning six games and losing three games.
Note: There is a total of 5 service breaks(one who serve lost the game).
Who served first, Djokovic or Murray?

What comes
Once in a Year
Twice in a Month
4 times in a Week
6 times in a Day

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

I have branches, but no fruit, trunk or leaves. What am I?