Answer:
What's the capital of France?
I have a head, tail, but no arms and legs. What am I?
Never ahead, ever behind, yet flying swiftly past; for a child, I last forever; for an adult, I'm gone too fast. What am I?
I cannot be bought, cannot be sold, even if I'm sometimes made of gold. What am I?
I run smoother than any rhyme I love to fall but cannot climb.
Give it food and it will live, give it water and it will die.