Answer:
A shimmering field that reaches far. Yet it has no tracks, And is crossed without paths.
Looks like water, but it's heat. Sits on sand, lays on concrete. A play on the eyes, but it's all lies.
What word has kst in the middle, in the beginning, and at the end?
The person who makes it has no need for it. The person who purchases it does not use it. The person who does use it does not know he or she is. What is it?
What has a single eye but cannot see?
What did the piece of wood say when he saw the screwdriver and screws approaching?