How can you tell a raw egg from a hard-boiled egg?

I have some blue and red sock in my drawer. I have a total of 4 socks. I pick 2 socks and the chance that I get a pair of red socks is 1/2.

What is the chance of picking a pair of blue socks?

Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

10+10 and 11+11 can give you the same answer.

Explain how?

You measure my life in hours
I serve you by expiring
I vanish faster when I am thin
and slower when I am thick
The wind is my energy
What am I?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

A Car driver was heading down a street in Washington. He went right past a stop sign without stopping, he turned left where there was a 'no left turn' sign and he went the wrong way on a one-way street. Then he went on the right side of the road past a cop car. Still, he didn't break any traffic laws. Why not?

Get total of 120 by using five zeros 0,0,0,0,0 and any one mathematical operator.
Do you ?

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?