There are four countries where Chinese is spoken by a majority of the population: China (Beijing), Taiwan (Taipei), Hong Kong (no capital, it's a city-state), and Singapore (Singapore).
Anywhere in the where there is or has been a Chinese immigrant community, there are likely to be Mandarin Chinese speakers. The largest number of speakers is in the People's Republic of China.
China and Taiwan are the only countries with Mandarin Chinese as their only official language. Hong Kong's official language is Cantonese Chinese (and English). Macau's official language is Cantonese...
Many countries have a large French-speaking population, with 29 countries claiming French as an official language, and 7 more countries that commonly use French as a second language. Hence, one could...