Answer:
There is 10 birds on a branch, a man shot 5 of them. How many were left?
Of these everyone has ten, part of two wholes at the arms end. What are they?
I occur twice in eternity. And I'm always within sight.
A tiny bead, like fragile glass, strung along a cord of grass.
Handy when you need to measure something or run a kingdom.
I am a room that has a roof but no walls. What am I?