I don't know why the text you quoted has changed it to jasmine-scented lemons etc. I can only assume that the culture of the writer has something to do with jasmine.
The question mark is rather odd. My only guess is that the writer was trying to say "When the world gives you jasmine-scented lemons, why not make jasmine lemonade?" It's a suggestion worded as a question. However, the original text really doesn't need a question mark.
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