We can use third party translator to translate the text in desired language!
But we need a plugin which can help us to duplicate the same question but in different language.
"A" asked question: How are you?
After some days
"B" asked the same question but in different language (say French): Comment vas-tu?
And mark it as French Version of the English one!
so that when people google in French they can easily get the answer from our site.