Answer:
I am nothing but holes tied to holes, yet am strong as iron.
What travels from house to house and is sometimes narrow and sometimes wide but always stays outside?
I can be quick and then I'm deadly, I am a rock, shell and bone medley. If I was made into a man, I'd make people dream, I gather in my millions By ocean, sea and stream.
I'm not really more than holes tied to more holes. I'm strong as good steel, though not as stiff as a pole.
When liquid splashes me, none seeps through. When I am moved a lot, liquid I spew. When I am hit, color I change. And color, I come in quite a range. What I cover is very complex, and I am very easy to flex.
I can only be played on a windy day
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?