Answer:
Angels and pilots earn these.
They come out at night without being called, and are lost in the day without being stolen. What are they?
What grows when it eats, but dies when it drinks?
What do people spend a lot of money on every year but never want to use it?
How many bricks does it take to complete a building made of brick?
People take me on walks and I run and have fun. What am I?