Answer:
I twist and turn and leaves a loop
Goes over all the hills and hollows, Bites hard, but never swallows.
What can you break even if you never touch it?
Everyone has me except for a few. You may not be able to identify me but I can always identify you. What am I?
I am a million people's wakeup call, gossip party and adrenaline rush. What am I?
Written on with words of white, Has the color of the night, Is the teacher's best delight, And a student's daily fright