Answer:
Big as a saucepan, deep as a cup, Even a river can't fill it up. What is it
What kind of cup doesn't hold water?
A small hill with seven holes.
What has a head, a tail, is brown, and has no legs?
In spring I look gay, Covered in a green array, The warmer it gets the more clothing I wear, As the cold grows, I throw away my clothes.
People take me on walks and I run and have fun. What am I?