Answer:
What starts with the letter T, is filled with T and ends in T?
Without this, H2O would just be 2O
When a doctor hits you with a hammer he is testing this
An appropriately loud response to fear, excitement, or your team scoring.
I am not alive, though I never die, to no one I've ever told a lie, today I can be god's warrior, and serve him with no horror, but tomorrow I might be devil's knight, for I am what ends the light.
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.