Solve this riddle by finding the odd one out from the rest.

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

There is something which is always coming but never arrives?

You have an empty wine bottle with a cork that has been secured at the top in a normal way. There is a metal ring inside the bottle that is suspended by a string.

How can you make the metal ring drop to the bottom if you are not allowed to touch anything - not the bottle, not the cork, not the thread and not the ring?

Who always enjoys poor health?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

Can you count the number of triangles in the given figure?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

Can you solve below mathematical equation?

2^1234 - 2^1233

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?