Answer:
I am quick when Iām thin. I am slow when Iām fat. Wind is my worst nightmare.
I have three feet but I cannot walk. What am I?
I am a shiny metal sheet that covers BBQ food.
I cannot be bought, cannot be sold, even if I'm sometimes made of gold. What am I?
I am a precious stone, as clear as a diamond. Though you can walk on water with my power, try to keep me, and I'll vanish in an hour. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.