Answer:
I scribble forms of the finest letter, And repel elements of the harshest weather. I am an arrow-aimer and a dust-breaker.
Runs smoother than any rhyme, loves to fall but cannot climb!
Only two backbones and thousands of ribs.
What can be filled with empty hands?
In the evening I'm long, in the morning I'm small; When seen in a ballroom, I'm nothing at all.
Why was the cook arrested?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?