Answer:
What is light as a feather but even the strongest man cannot hold it for more than a few minutes?
What comes once in a year twice in a week but never in a day?
What is harder to catch the faster you run?
I am a shiny metal sheet that covers BBQ food.
I am a word of letters three. Add two and fewer there will be. What word am I?
No matter how little or how much you use me, you change me every month.