I think there also should be indicators showing whether a question has been replied to at all or not...or it should be compulsory somehow to indicate that you have received an answer once you do..

Question

mathteacher1729 · Answer

Profile Settings > Notifications > check the boxes to make sure you receive emails anytime someone replies to your question.  (WARNING: this might send a LOT of emails your way!)  :)

anonymous · Answer

no ...i think when we open our profile page then there should a button other than the notification to show whether any one has answered or not...