Answer:
From house to house I go, sometimes narrow, sometimes wide. Whether there's rain or snow, I always stay outside. What am I?
I have no life but I can die. What am I?
I help you carry your books.
I follow you all the time and copy your every move but you can't touch me or catch me. What am I?
Open me, and you can't see me without a mirror. Close me and you can't see me at all. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?