reset apple id security questions

Sign in at Apple ID: Your Account for Everything Apple  https://appleid.apple.com/#!&page=signin. You can modify your quesrtions there. You also can rid yourself of your security questions by choosing to use two-factor authentication--which is a good idea overall..

If you are being told there isn't enough information to reset them, contact Apple ID Support.

If you don't know the answers, if the steps in the article below don’t work, contact Apple ID Support, although I’m not sure they will be able to help. 

Apple ID - If you forgot the answers to your Apple ID security questions.      

From the article below. 

Without proof of your identity via security questions and other carefully selected criteria, Apple Support can't help you reset a password or perform any other actions on your account. These policies are audited and reviewed on a regular basis.

Security and your Apple ID.    

Apple ID - Official Apple Support.    

Contact Apple for help with Apple ID account security - Apple Support.   (Link doesn't always load)  

Get Support    Work through the screens to get a chat option. 

https://twitter.com/AppleSupport

Or fill out and submit  iTunes Store - Contact Us - Official Apple Support    The form is for iTunes, but will get passed to the ID Support section.