If you have a rescue email address (which is not the same thing as an alternate email address) set up on your account then you can try going to https://appleid.apple.com/ and click 'Manage your Apple ID' on the right-hand side of that page and log into your account. Then click on 'Password and Security' on the left-hand side of that page and on the right-hand side you might see an option to send security question reset info to your rescue email address.
If you don't have a rescue email address then see if the instructions on this user tip helps : https://discussions.apple.com/docs/DOC-4551
1. See my User Tip for some help: Some Solutions for Resetting Forgotten Security Questions: Apple Support Communities.
2. Here are two different but direct methods:
a. Send Apple an email request at: Apple - Support - iTunes Store - Contact Us.
b. Call Apple Support in your country: Customer Service: Contacting Apple for support
3. For other queries about Apple ID see Frequently asked questions about Apple ID.
5. For online assistance use Apple - Support - Express Lane