Answer:
A mile from end to end, yet as close to as a friend. A precious commodity, freely given. Seen on the dead and on the living. Found on the rich, poor, short and tall, but shared among children most of all.
The more holes you cover the lower it goes.
What is given but kept by the giver?
I am never quite what I appear to be. Straight-forward I seem, but it's only skin deep. For mystery most often lies beneath my simple speech. Sharpen your wits, open your eyes, look beyond my exteriors, read me backwards, forwards, upside down. Think and answer the question...
I fly, yet I have no wings. I cry, yet I have no eyes. Darkness follows me. Lower light I never see.
What did the piece of wood say when he saw the screwdriver and screws approaching?