Click here for information. If you can't reset them through the method described in that article or by sending yourself a rescue email(the email may take a few hours to arrive), contact the iTunes Store staff via the link in the 'Additional Information' section.
It isn't possible to create a rescue email address without correctly answering two of the questions. Nobody on these boards can reset them for you.
Please call apple @ 1-800-692-7753 in USA
ask for the account security team
you may want to add a credit card to your iTunes account before calling; so they will have a way to verify your identity.
check # for your country