Some solutions to common toilet problems are replacing the flapper when the problem is phantom flushes and unclogging holes underneath the rim of the bowl if the problem is the bowl emptying slowly or weak flushing. Replacing old seals, tightening bolts and caulking are solutions for leaky toilet seals.
Phantom flushes refer to spontaneous refills of the tank. This is a problem with a toilet that cuts on and off by itself, causing a slow leak from the tank into the bowl because the flapper is not sealing properly. Replacing the flapper solves the problem.
Clogged toilets are also common, and a quick solution is using a force cup plunger to clear the clogged drain. Use a closet auger for serious clogs.