Answer:
Man walks over, man walks under, in times of war he burns asunder. What is it?
Feed me and I live. Give me water and I die. What am I?
I can be in your body but never on your placemat. I'm always better when I'm fresh, but you'll never see me in the flesh. What am I?
I have three heads. Cut off one I become stronger. Cut off two I become ten.
When you buy me I am costly, but the only use I have is hanging only. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?