Answer:
My life can be measured in hours. I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
Come up and let us go. Go down and here we stay.
The eight of us move forth and back. To protect our king from the foes attack.
A muttered rumble was heard from the pen, and I, in my walking stopped to look in. What was this I saw? A massive beast, hoofed, and jawed. With spikes upon its mighty brow, I watched as he struck the turf and prowled. And yet for all of his magnificence, he couldn't get out of that wooden fence.
What can you fold but not crease?
What did the piece of wood say when he saw the screwdriver and screws approaching?