Of course it is. Use special mirror mounting brackets that have screws. Screw hole are easy to fix in any wall if you later remove the mirror
Remove the 'button' from the mirror stalk and glue it to the window with 'Loctite Auto Mirror Adhesive'. It will stick almost instantly and you can attach the mirror to it in about 5 minutes.
Use strong glue to attach mirror
yes
They usually come with a clamp that wraps around the handle bar.
The proper way is to buy another mirror and replace it. If that is not possible purchase weatherstrip adhesive, comes in a tape form. As long as the peices are still there you should be able to attach with this tape. If you use the tape temperature for adhesion must be observed or it will not hold also mirror needs to be secured for a day or so for the tape to set. The proper way is to replace the mirror but this worked for me in a fix.
Yes, I bought a car rear view mirror, I received it in uk without any duty.
because its a mirror
Sure.... Why not.
No
90 degrees is the largest possible angle of incidence because it is then parallel to the face of the mirror and is grazing the mirror.
Yes.
Auto parts stores sell mirror adhesive. It's very similar to superglue. The glass and the mirror mounting hardware must both be completely clean before attempting to attach the mirror.