Question: A computer walks up to two stores, one called '1', and one called '0'. Which does it choose?

Question: Surrounded by green, surrounding white.
Inside is red, holding many black babies.

What is it?

Question: If it's information you seek, come and see me.
If it's pairs of letters you need, I have consecutively three.

Who am I?

Question: When I am released to the wind,
you look away and you pretend,
but away your friends I will send.

What am I?

Question: Everyday I stalk you all day long,
With every move you make, I never make one wrong.
I vanish twice a day with the sun's height and fall,
I will follow you anywhere,
even the bathroom stall.

What am I?