Answer:
What's as small as a mouse but guards a house like a lion?
What has a head, a tail, is brown, and has no legs?
Three little letters, a paradox to some. The worse that it is, the better it becomes.
I am the outstretched fingers that seize and hold the wind. Wisdom flows from me in other hands. Upon me are sweet dreams, my merest touch brings laughter
I scribble forms of the finest letter, And repel elements of the harshest weather. I am an arrow-aimer and a dust-breaker.
People take me on walks and I run and have fun. What am I?