Answer:
I have Eighty-eight keys but cannot open a single door.
What is harder to catch the faster you run?
I am black within and red without; with four corners round about. What am I?
I am a portal to another world which you cannot enter. Only you can see me but I can't see you.
My second is performed by my first. A thief by the marks of my whole might be caught. What am I?
What made Cyclops quit teaching?