#1
this song sounds really familiar but i cant put my finger on it.

play an E chord , A chord then palm mute
next play an A chord, E chord then palm mute

i know its kinda vauge but this is the jist of the intro. throw some heavy reverb on it and it sounds really familiar
#2
Maybe some AC/DC stuff, or Accept don't really know
#3
when i play the first two chords van halen - running with the devil comes to mind