Q: How do I reset my security questions for my iTunes

Alternatives for Help Resetting Security Questions and Rescue Mail

     1. Apple ID- All about Apple ID security questions.

     2. Rescue email address and how to reset Apple ID security questions

     3. Apple ID- Contacting Apple for help with Apple ID account security.

     4. Fill out and submit this form. Select the topic, Account Security.

     5.  Call Apple Customer Service: Contacting Apple for support in your

          country and ask to speak to Account Security.

How to Manage your Apple ID: Manage My Apple ID

What do you mean 'apple won't let me change them' ? You've contacted support ?

If you have a rescue email address (which is not the same thing as an alternate email address) set up on your account then the steps half-way down this page give you a reset link on your account : http://support.apple.com/kb/HT5312

If you don't have a rescue email address (you won't be able to add one until you can answer your questions) then you will need to contact iTunes Support / Apple in your country 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 link above to add a rescue email address for potential future use