Answer:
They made me a mouth, but didn't give me breath. Water gives me life, but the sun brings me death.
I am a box that holds keys without locks, yet they can unlock your soul.
George, Helen, and Steve are drinking coffee. Bert, Karen, and Dave are drinking soda. Is Elizabeth drinking coffee or soda?
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
Runs smoother than any rhyme, loves to fall but cannot climb!
It is an insect, and the first part of its name is the name of another insect. What is it?