Answer:
The more you add the less it weighs. What is it?
What goes in the water black and comes out red?
I am pronounced as one letter written with three. I come in blue black brown or grey. Reverse me and I read the same either way.
I am a king who's good at measuring stuff. What am I?
I am the kind of soda you must not drink. What am I?
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.