Answer:
A home of wood in a wooded place, but built not by hand. High above the earthen ground, it holds its pale blue gems. What is it?
What common verb becomes its own past tense by rearranging its letters?
What can't you see, hear or feel, until its too late. What shadows love, and shopkeepers hate?
My life can be measured in hours. I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
A precious fluid, thicker than water.
Of these things - I have two. One for me - and one for you. And when you ask about the price, I simply smile and nod twice.