Q: How do I reset my security quiestions?

If you aren't getting the reset link then you don't have a rescue email address (which is not the same thing as an alternate email address) on your account, and you won't be able to add one until you can answer your questions - you will have to contact Support in your country to get the questions reset.

Contacting Apple about account security : http://support.apple.com/kb/HT5699

If your country isn't on that page then try this form and explain and see what they reply with : https://ssl.apple.com/emea/support/itunes/contact.html

When they've been reset you can then add a rescue email address for potential future use : http://support.apple.com/kb/HT5620

Or if it's available in your country you could change to 2-step verification : http://support.apple.com/kb/HT5570