Answer:
I am always in front of you but you will never see me
What two keys cannot open any door?
I can be thin but not fat; 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.
I cannot be bought cannot be sold even if Iām sometimes made of gold.
I am a kind of coat that can only be put on when wet. What am I?
Give it food and it will live, give it water and it will die.