Q: I forget the answear for the question please help me

If you have a verified rescue email address on your account (an additional/alternate email address is different) then you can use that to reset them : If you forgot the answers to your Apple ID security questions

If you don't have a rescue email address you will have to contact Support in the country where you are (and which is therefore the country on your account) to get the questions reset : Contact Apple for help with Apple ID account security

If your country isn't on that page then try this form to contact Support : https://www.apple.com/emea/support/itunes/contact.html

When they've been reset, and if you don't already have a rescue email address, you can then add one for potential future use : About your Apple ID email addresses - Apple Support