Answer:
You can only have it once you have given it.
What is long and slim, works in light. Has but one eye, and an awful bite?
Take one out and scratch my head I am now black but once was red.
What do you fill with empty hands?
They made me a mouth, but didn't give me breath. Water gives me life, but the sun brings me death.
People take me on walks and I run and have fun. What am I?