The option for the purpose you mentioned is very much available.
Go to the Ask Experts section. You should see the links for My Questions and My Answers just above the questions. Click on the appropriate link and you will be taken to the page that has your questions and those questions you have answered to.
To edit any of your content, go the particular content and click on the Edit button just below your name. Please note that it is not advisable to edit the already approved content unless you are adding any useful info.
Live....and Let Live!