retrieving passwordAnswer

I want to retrieve passwordAnswer in asp.net membership provider, how can I?
I searched around the Internet, I found one link, but I donot understand.
http://throughexperience.blogspot.sg/2009/06/how-to-retrieve-memberships.html
passwordAnswer is encrypted in database, I know, that will need to decrypt it.
is there any way to get this passwordAnswer ?
if possible, I also want to retrieve password?
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