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A: I don't know. It is a glass cutter that scores glass. Is a ceramic Tile Glass? They make a Tile saw which cuts ceramic tile, so I would hazard a guess that it will not.
A: No. This is for cutting real, nontempered, window glass. Acrylic, plexiglass, lexan, etc. are cut with a saw.
A: The Glass cutter scores a line in the glass. You then can break the glass edge off. I have never tried to cut holes in glass like they do in movies. Remember all the things you see in the movies and on television are not necessary REAL! All I can say is the cutter will do what it is made to do, and that is to score a line in the glass to allow you to break the glass.
A: Theoretically yes. Practically, no. You simply can't freehand a circle that will knock out cleanly with this tool. There ARE special circle cutters (suction cup pivot & cut wheel on radius arm) but not this tool. For small diameter holes there a wet diamond drills.