How many tones are there in Chinese?

Answer 1

There are four tones called first,second,plus one additional tone that consists in not having one（轻声）. The first two are called 平声(ping sheng) the last two are called 仄声(ze sheng)

Answer 2

In Chinese, there are four main tones: flat, rising, falling-rising, and falling. Some dialects may have additional tones, like the neutral tone in Mandarin Chinese.