Answer:
I am commonly abbreviated to H
I no longer have eyes, but once I did see. Once I had thoughts, but now Iām white and empty. What am I?
I run cold and hot, I look blue but am red. What am I?
I have all the knowledge you have. But I am so small that I can fit into your hands. What am I?
I jump when I walk and sit when I stand.
I saw the dead bring forth the living. I saw the living bring forth the dead. What did I see?