Answer:
There is one in every corner and two in every room.
you need thousands of me to create a digital image.
Iām white; perfect for cutting & grinding. For most animals I am a useful tool.
I can fly but I have no wings. I can cry but I have no eyes. Wherever I go darkness follows me.
I go in dry and come out wet. The longer I stay in the stronger my surroundings get.
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.