the tile squares have come off and I need to re-stick them. Which glue should I use?
What kind of tile, and where is it? On the wall or the floor?
The thin floor tiles? Sometimes you can heat the tile back and floor with a hair drier then stick them back in place one by one. If that doesn't work then carry a tile to a flooring outlet and ask them what to use and do. There's different types of adhesives. Some can be re-activated with heat while others need to be removed then a fresh application trowled on.