I have forgotten the answers to my security questions
I have forgotten my Apple ID security answers also not sure if I have set up a recovery email address and what it is
If you follow the steps half-way down the HT5312 page that you posted from then you will be able to tell if you have a rescue email address on your account - if you get the reset link as described on that page then you do (and if you know what the full email address is).
If you don't have a rescue email address (you won't be able to add one until you can answer 2 of your questions) then you will need to contact iTunes Support / Apple to get the questions reset.
Contacting Apple about account security : http://support.apple.com/kb/HT5699
When they've been reset (and if you don't already have a rescue email address) you can then use the steps half-way down the HT5312 page that you posted from to add a rescue email address for potential future use