Answer:
I am perfect with a head perfect without a head; Perfect with a tail perfect without a tail; Perfect with either neither or both.
When I am caught, I am thrown away. When I escape, you itch all day. What am I?
I wear a green jacket on the outside white jacket as a second layer and red jacket inside. I am pregnant with a lot of babies. (one word)
I ask no questions but receive a lot of answers. What am I?
I belong to you but others use me more often than you do. What am I?
What goes up the hill and down the hill, And spite of all, yet stand still?