During which month do people sleep the least?

I have no life, but I can die. What am I?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

If a wheel has 54 spokes, how many spaces are there between the spokes?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

I know a nine-letter word having only one vowel.
Do you ?

What breaks yet never falls, and what falls yet never breaks?

I have an eye but still cannot see.

Who am I?

I am dry when I go inside, but wet when I am pulled outside.
The longer I am inside, the stronger I get
When I am completely out, I am wet and I literally sag
Who am I?

Known by all without exception, Forever here, for your protection, Sometimes strong, sometimes weak, Right after the night I come - hot and chic. And while millions of miles away, I always get to you, I find my way. No life around could do without me, Can you guess what I might be?