Answer:
By myself, I'm practically nothing. Worthless as a leader, but when I follow a group, their strength increases tenfold. What am I?
Everyone has me, but nobody can lose me. What am I?
I am the place to turn to when nature calls. What am I?
I have a lot to say but can't be heard because I can't speak one single word. What am I?
I go through a door but never go in and never come out.
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?