Answer:
My snake-like body cracks and burns. I cause pain but pleasure too. What am I?
What word begins and ends with an E, but only has one letter?
Travel a mile and I will change, travel a million and I will end as I started. What am I?
I am asleep when you are awake I am awake when you fall asleep. I can fly but no feathers to aid my flight.
I begin your sentences.
No matter how little or how much you use me, you change me every month.