Mandarin Chinese, China
Fon is mainly spoken in Benin. There is no such language as "Fun."
The next most widely spoken language in India after Bengali is Telugu. Telugu is mainly spoken in the state of Andhra Pradesh and Telangana in southern India.
If you are talking about Fon, it is spoken mainly in Benin. "Fun" is not a language.
French mainly.
Spanish
No, English is the most widely spoken language in the world. French is spoken by a significant number of people, but it is not the most spoken language globally.
The Siouan language was mainly spoken in the eastern region of Virginia by the indigenous peoples before European colonization.
The most spoken language is Chinese, then the second most spoken is English, and the third most spoken language is Spanish.
Persian is the most spoken language in Afghanistan.
Arabic, mainly.
The second most spoken language is Irish, spoken fluently by about 1% of the population.The most spoken language is English, spoken by about 98% of the population.
The third most spoken language in the world is Spanish. It is spoken by around 460 million people as their native language.