Answer:
I am all around, yet to me you are half blind. Sunlight makes me invisible and difficult to find. What am I?
I am black within and red without With four corners round about.
I come with a train and go with a train and the train doesn't need me but can't go without me.
I am an English word with three consecutive double letters. What am I?
I am a rock group that has 4 members, all of whom are dead, one of which was assassinated. What am I?
What made Cyclops quit teaching?