Answer:
Better touch me before you proceed to second.
I am lighter than air but a hundred people cannot lift me. Careful! I am fragile!
I can be sweet or sour. I do not rhyme with any other word
I am commonly ate before I'm born and after I'm dead.
I cover what's real; hide what is true, but sometimes bring out the courage in you. What am I?
The answer I give is yes, but what I mean is no. What was the question?