Is English not the most widely spoken language?

I just saw a Y!A question that says Mandarin is the most widely spoken language in the world, followed by Spanish... is that true... because 1.9 billion people speak English and only 1.2 billion speak Mandarin, and 500 million speak Spanish.

How is English not the most widely spoken language in the world?
Update: @Wesley K you know for a fact? well it is a fact that 1.9 billion people speak english, and it is a fact that english is the international language, and don't even bother answering questions when you have absolutely no knowledge of the subject
Update 2: @Erik Van Thienen I never said anything about native speakers... I said the most widely spoken language....
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