Answer:
If you have me you want to share me. If you share me you don't have me. What am I?
Until I am measured, I am not known. Yet, how you miss me when I have flown. What Am I?
I cannot be bought cannot be sold even if Iām sometimes made of gold.
Brown I am and much admired. Many horses have I tried. Tire a horse and worry a man, tell me this riddle if you can. What am I?
I come without being fetched at night hides away as soon as daylight strikes. Although I may look small I am much mightier than what you can imagine.
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.