Answer:
Describes universities like Harvard and can be poisonous.
You can only have it once you have given it.
A cowboy rode into Friday. He stayed in town for three days and rode back on friday. How is that possible?
I fly, yet I have no wings. I cry, yet I have no eyes. Darkness follows me. Lower light I never see.
Some live in me, some live on. And some shave me to stride upon. I rarely leave my native land. Until my death I always stand. High and low I may be found. Both above and below ground.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?