Answer:
I have a mouth on my head and eat everything.
I cannot be burned in fire or drowned in water. What am I?
I can be sweet or sour. I do not rhyme with any other word
I am a type of weapon for SCI-FI characters
I'm not a bird but I can fly through the sky. I'm not a river but I'm full of water.
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.