Answer:
Name for zenith
A hole in a pole, though I fill a hole in white. I'm used more by the day, and less by the night.
I am black when I am clean and white when I am dirty?
I drift forever with the current down these long canals they’ve made, Tame, yet wild, I run elusive Multitasking to your aid. Before I came, the world was darker, colder, sometimes, rougher, true. But though I might make living easy, I’m good at killing people too.
No matter how little or how much you use me, you change me every month.
What never gets any wetter no matter how hard it rains?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?