Answer:
I'm an old relative who's hand's can't hold anything and eyes canβt see anything
What goes through towns and over hills but never moves?
I'm as simple as a circle worthless as a leader; but when I follow a group their strength increases tenfold. By myself I'm practically nothing.
I have a neck and no head, two arms but no hands. I'm with you to school, I'm with you to work. What am I?
When it comes to me, you go on red and stop on green. What am I?
No matter how little or how much you use me, you change me every month.