Answer:
What breaks in the water but never on land?
Its days are numbered.
The buyer doesn’t want it, the producer doesn’t need it and the user doesn’t know their using it.
There is a woman in a boat, on a lake, wearing a coat. If you want to know her name, it’s in the riddle I just wrote. What’s the woman’s name?
Each morning I appear to lie at your feet, all day I follow no matter how fast you run. Yet I nearly perish in the midday sun.
It's what light turns into in the night