Answer:
You cannot keep me until you have given me. What am I?
If I drink, I die. If I eat, I am fine. What am I?
I am lighter than air but a hundred people cannot lift me. Careful! I am fragile!
I hop around and deliver eggs at Easter.
Born in the ocean and white as snow. When I fall back to water I disappear without a trace.
I am owned by Old McDonald.