Answer:
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves every day. What am I?
I am a protector. I sit on a bridge. One person can see right through me, while others wonder what I hide. What am I?
I am milky white and scares people.
What's the capital of France?
I get dirty when wiping things clean. What am I?
What made Cyclops quit teaching?