Answer:
Sometimes dark and sometimes bright, I make my way among twinkling lights. Seas and oceans obey my call, yet mountains I cannot move at all. What am I?
I can speak with my hard metal tongue. But I cannot breathe for I have no lung
Taken from a mine and then locked up in a wooden case. I am used by students everyday.
When set loose I fly away. Never so cursed as when I go astray.
I am a person who pretends to be someone else
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?