Answer:
It holds most knowledge that has ever been said. But is not the brain, is not the head. To feathers and their masters, it's both bane and boonΒ One empty, and one full.
What measures out time until in time all is smashed to it?
What is the smallest sentence with all letters in the English alphabets?
If you have it, you want to share it. If you share it, you don't have it.
It's been around for millions of years, but is never more than a month old. What is it?
If lightning strikes an orchestra who is the one most likely to get hit?