Answer:
Rotten trees and Jack-O-Lanterns have this characteristic in common.
The more you have of me, the less you see. Who am I?
Slang for the male half in a marriage.
What occurs four times in every week, twice in every month, only once in a year but never in a day?
One might hang a locket from this
Long and slinky like a trout, never sings till it's guts come out.