I forgot my security answers too! i went to:
support (located at the top right corner of your screen next to the search bar)
itunes (click on the iTunes icon)
contact itunes support (the blue link under the picture of the people)
account management (click on it)
forgotten apple id security questions
(there may be a few more step but you should easily firgure it out)
they should give you a case number and call you as soon as you see your case number
when they call, wait for the option that allows you to talk to a real person (not a computer)
tell them why you called and that you would like to reset your security questions.
they should tell you what to do from there.
They were very friendly and helpful!