Answer:
Long legs, crooked thighs, little head, and no eyes.
I have a hundred legs, but cannot stand. I have a long neck, but no head. I cannot see. I'm neat and tidy as can be.
You get many of me, but never enough. After the last one, your life soon will snuff. You may have one of me but one day a year, When the last one is gone, your life disappears.
What is it which builds things up? Lays mountains low? Dries up lakes, and makes things grow? Cares not a whim about your passing? And is like few other things, because it is everlasting?
You can spin, wheel and twist, but this thing can turn without moving. What is it?
People take me on walks and I run and have fun. What am I?