Answer:
What do you get when you mix lemons with gun powder?
I am an English word with 3 consecutive double letters.
I stand in one place yet fill the whole room. I can be filled with molten rock and come in every hue. What am I?
I am a rock group with four members. All dead one was assassinated.
If I drink I die. If I eat I am fine. What am I?
No matter how little or how much you use me, you change me every month.