Question: how to get rid of white spots on a wood table?
Answer: A hair dryer. Put your hair dryer on its lowest setting and direct it at the water ring. ... 
Mayonnaise or petroleum jelly. Apply a dab of either substance with a soft cloth and rub it into the mark in a circular motion. ... 
Toothpaste. ... 
Steel wool. ... 
Over-the-counter products.