Answer:
What's made of water but if you put it into water it will die?
Never ahead, ever behind, yet flying swiftly past, for a child, I last forever, for adults, I'm gone too fast.
An action done on mosquito bites
I'm tall when I'm young and I'm short when I'm old. What am I?
Canine children.
The answer I give is yes, but what I mean is no. What was the question?