Answer:
When they are caught, they are thrown away. When they escape, you itch all day.
Add a T and I shoot through the sky. Then add an S and I multiply. What word is it?
The sharp slim blade, that cuts the wind.
I usually wear a yellow coat. I usually have a dark head. I make marks wherever I go.
Turns us on our backs, and open up our stomachs. You will be the wisest of men though at start a lummox.
People take me on walks and I run and have fun. What am I?