I've forgotten the answers of my security questions and can't reset or change them. What can I do???

You need to ask Apple to reset your security questions; ways of contacting them include clicking here and picking a method for your country, phoning AppleCare and asking for the Account Security team, and filling out and submitting this form.

They wouldn't be security questions if they could be bypassed without Apple verifying your identity.

Have the same issue but I can't phone AppleCare. What do I do?

I can reset my password but I can't do anything with the security questions that Apple gave me.