The answer to 'my toilet is leaking' is that there can be several common causes, including a worn-out flapper valve, a cracked toilet tank, or a problem with the supply line. Symptoms may include water pooling around the base of the toilet, a constant dripping sound, or a higher than normal water bill.
To fix a leaking toilet, you can try DIY solutions like replacing the flapper valve or tightening the supply line. However, if the issue is more complex, such as a cracked tank or a problem with the plumbing system, it's best to call a professional plumber to diagnose and resolve the problem properly.