How do I reset my security questions?

You need to contact Apple, either through the link in that article or by phoning them and asking for the Account Security team.

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how can i reset my aaple id sceurity

The system will not accept my phone number

What happens when you enter it ? You are in the country where your iTunes account is based (you aren't trying to use another country's store), and you've selected your country on this page : http://support.apple.com/kb/HT5699 ?