Answer:
The more you add the less it weighs. What is it?
I can be swallowed, but I can also swallow you. What am I?
Digital white-out.
When I get closer my tail grows longer but when I go away my tail leads the way.
I am in truth a yellow fork from tables in the sky by inadvertent fingers dropped the awful cutlery. Of mansions never quite disclosed and never quite concealed the apparatus of the dark to ignorance revealed.
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.