You may want to Close a question when you had enough answers and don't want to accept any more new answers.
- Login to your account
- Click on the question you want to close
- In the Question page, under the question you will see a link "Close Question"
- Clicking on the link will close it and won't accept any more answers
In case if you want to open/re-open again
- Follow the same above steps
- Now you will see a link "Open Question" below the question
- Clicking on that link will open the question and will start accepting answers again