Yes. You do not have to pay any money to ask or answer questions.
Instead, asking questions will cost you points, while answering questions, and voting on questions will give you points.
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Yahoo answers
You simply go to the Yahoo Answers site (linked below) and click the SIGN UP link. Answer the questions and/or fill in the information requested and you will be signed up for a free Yahoo Answers account.
Yahoo! wrote Yahoo! Answers.
Yahoo answers questions
Questions that receive no answers or for which no answer was chosen as best on Yahoo Answers are removed after a certain number of days to keep server space free for active questions and answers. It is a form of site editing they employ.
According to Yahoo Answers,you need to be 13 to become a member of Yahoo Answers.
No,you can't.Yahoo Answers is launched by yahoo,so hence,to create a yahoo answers account,you need to have a yahoo account.
No, wikianswers is not inferior to yahoo answers.
You can ask or answer questions at yahoo answers at any age,but Yahoo Answers says that you need to be 13 to create a yahoo answers account,same for Facebook,Wiki Answers and many other sites.
No, you must sign up with Yahoo to be able to post or answer a question on Yahoo Answers.
You need to create a yahoo ID in order to do it.If you have,then click on Get Started on the right side of the yahoo answers page,fill in your yahoo id and password and hence,you have a yahoo answers id.
You simply need a Yahoo Mail ID. Through yahoo mail address you can register and then sign in to yahoo answers.