Answer:
A tiny bead, like fragile glass, strung along a cord of grass.
What has a head, a tail, is brown, and has no legs?
A circle of stones, never in rows. Stacked one on the other, mystery it sows. What is it?
What does everyone know how to open but not how to close?
It's a game played by serious people that takes place on a global scale.
What is always coming but never arrives?