Answer:
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.
Casper was a friendly one and Demi Moore made a clay pot with one.
Whipping one of these out in the wrong setting is said to be terrible luck.
Poor people have it. Rich people need it. If you eat it you die. What is it?
What is filled with air and sometimes a gas, tied to a string and often seen on your birthday?
I am a rock group with four members. All dead one was assassinated.