Answer:
What gets sharper the more you use it?
I beam I shine I sparkle white. I’ll brighten the day with a single light. I’ll charm and enchant all I’ll bring the best in you all.
I am an instrument that you can hear but cannot see or touch. What am I?
I am drawn by everyone without pen or pencil. What am I?
What goes up a chimney down but can't go down a chimney up?
No matter how little or how much you use me, you change me every month.