Look on the asphalt container for mention of a solvent or cleaner. -Use that first. If no mention, try hot soapy water on a small piece, then lacquer thinner.
Yes, use a good thin-set cement.
Yes, asbestos mastic (glue) under the tiles. ceiling or floor tiles?
Epoxy will do this .
Yes. In some but not in all. It is also found in the glue that hold the tiles to the floor.
hot glue gun would probably be your best bet
mix glue with black ink
Goof Off has more chance of working than anything. Rub it with this till it softens enough to peel off.
Yes, you can use wax.
yes you always glue on the tiles first. or what ever you are using. then i would wait a 24 hrs to dry. then you can do the grouting.
If you mean from the back off tile that has come off a wall or floor - soak the tile for 3-4 hours in hot water, then most glues will wipe off. If you mean glue that has got on front of laid tile, use a sharp craft knife to get under the edge and flick it off.
You soak them in water for about a week, then the glue should have softened enough to scrape of with a metal spatula.
Black glue stick is used as a dent puller in the auto body industry.