Answer:
I tremble at each breath of air and yet can heaviest burdens bear.
I am a food with 5 letters. If you remove the first letter I am a form of energy. Remove two and Iām needed to live. Scramble the last 3 and you can drink me down.
I am known for my natural tuxedo and marching
What goes through a door but never goes in and never comes out?
I am round. I have only one line. Circle is not my name indeed. What am I?
No matter how little or how much you use me, you change me every month.