I was forget my security question t manage my Apple ID.

Forgotten Security Questions/Answers

You need to contact Apple by:

1 - Using this form

Apple - Support -form iTunes Store - Contact Us

2 - Call Apple in your country by getting the number from here: http://support.apple.com/kb/HE57

3. Contact Apple by:

Apple ID: Contacting Apple for help with Apple ID account security

For general information see:

Apple ID: All about Apple ID security questions