Answer:
What two letters in the alphabet say goodbye?
What can get you there in eco style, pushed by your legs mile after mile?
Tomorrow's yesterday. Yesterday's tomorrow. What is it?
Without coolant, you'll have some trouble with this.
What gives life and love, and is there till they die? What can hide you and find you, heal you and feed you but should never give up on you?
What is always coming but never arrives?