Top 12 Languages Spoken in Asia

Manchu was almost a dead language by the end of the Qing dynasty in the early 1900's (which began using manchu, and became extremely sinicized over the next several centuries to the point that almost no court officials could speak it), to say nothing of a hundred years after it's end today. Like the below commenters said, native Manchu speakers are almost gone today and fluent speakers be it first or second/third/etc. language are rare. Almost all ethnic Manchu speak Mandarin Chinese as a first language.

Shanghai dialect belongs to Wu, but in addition to Shanghai, Wu is also spoken in southern Jiangsu Province, almost the entire Zhejiang Province, northeastern Jiangxi Province, southeastern Anhui Province, and the northernmost part of Fujian Province. The total population of these places must be over 80 million

I might be misremembering it, but I remember seeing a joke about how you hear Shanghainese in the countryside around Shanghai, Mandarin in the suburbs, and English in the city. I can't attest how accurate it is but I thought it was funny.

There are more than 100 million people in Guangdong Province, but not all of them speak Cantonese. There are also many people in Guangdong Province who speak Hakka, Teochew, Luichew Min, Shaozhou Tuhua. These languages don't belong to cantonese. Among them, Teochew and Luichew Min belong to Min, and are close relatives of Hokkien.