You cannot answer already answered questions, but you can edit them.
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It depends on your user powers. If you are have permission on the site to edit a question, then an "improve answer" button will allow you to edit it.
Also, there is trouble with mobile devices and editing sometimes, so make sure you are interfacing with the normal interface rather than the mobile one before deciding that you can't edit.
If you find something wrong with an answer and are unable to change it yourself, please contact support, and we'll work on solving the problem.
Most of the questions here are answered.
Questions of faith can not be answered by a scientist.
You have two questions here. Which one do you want answered?You have two questions here. Which one do you want answered?You have two questions here. Which one do you want answered?You have two questions here. Which one do you want answered?You have two questions here. Which one do you want answered?You have two questions here. Which one do you want answered?You have two questions here. Which one do you want answered?You have two questions here. Which one do you want answered?You have two questions here. Which one do you want answered?
None of these questions get answered since anybody can answer them.
How Many Questions Have You Answered?I am answering your question, and, as of now, I have answered 2,460 questions.
20
71% of the questions were answered correctly
I don't get on this sight to answer the questions, I get on to get my questions answered. So get these things answered!
As of September 1, 2012 there are 17,362,905 questions that have been answered.
over 20,000 questions were answered in 2009.
There are many questions which have not yet been answered. Click on "Unanswered questions" when you are in a category to see them all.
There are millions of answered questions. It is impossible to list them, because people answer questions daily.