Answer:
Tear me off and scratch my head what once red is now black.
Island hello
my rings are not worth much but they do tell my age.
I have all the knowledge you have. But I am so small that I can fit into your hands. What am I?
I can fly but I have no wings. I can cry but I have no eyes. Wherever I go, darkness follows me. What am I?
The answer I give is yes, but what I mean is no. What was the question?