Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

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

If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

What is the coolest letter in the alphabet?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.

If,

A + B = C
D - C = A
E - B = C

Based on the above equations, find out the answer for:

D + F = ?

If you were to put a coin into an empty bottle and then insert a cork into the neck, how could you remove the coin without taking out the cork or breaking the bottle?