Answer:
I give people a huge fright but at the end I'm sweet. I normally celebrate at night when there's less heat.
I am known for my natural tuxedo and marching. What am I?
What can be drawn but never taken?
I shrink smaller every time I take a bath. What am I?
What has 13 hearts but no other organs?
No matter how little or how much you use me, you change me every month.