You can't. You can only ask a question or answer a question.
Yes, members do recommend questions/answers and other contributors on WikiAnswers. This is one method of demonstrating or showing others that something on the site has been helpful.
I recommend you ask "WikiAnswers". They are very good at answering questions.
Yes , you can answer the questions on wikianswers.
Trustpoints show how trustworthy you are-the more you have, the more you are trusted. When you answer questions, and people like your answer, they can recommend you, and that means you get one more trust point. So, all you can really do is answer questions the best that you can, and hope people remember to recommend you!
If the two questions are nearly identical, either recommend a merge, or ask a Supervisor to merge the questions for you. If the questions are not the same, but have the same answer, it is alright to copy and paste an answer as long as you wrote it. Don't take credit for an answer that you did not write.
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WikiAnswers visitors ask questions. You wrote this one! :-)
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