Questions about Nobo Whiteboard Basic

Yes, it is possible. It can be mounted horizontally or vertically with 4 screws (each corner).

The one I ordered several years ago is magnetic. I cannot say if that is still the case nowadays.

I doubt they sell these individually. I would think you can use a standard wall anchor and matching screw, found at any hardware store. If in doubt, just bring the board when you go to one.

Was included with my order.

Yes.

Yes, you can - it's also in the specifications of the board.