Answer:
I help engines spin and pants stay up.
What kind of band never plays music?
Who makes it, has no need of it. Who buys it, has no use for it. Who uses it, can't see it. What is it?
I am an English word with 3 consecutive double letters.
I have memories but none of my own whatever's on my inside is what is shown. If I'm ever different it's because you changed me I feel like a decoration here for you to arrange me.
What made Cyclops quit teaching?