you forgot to answer to the secret questions on APP Store also you lost your E-mail account to regain the answers

Forgotten Security Questions / Answers...

See Here > Apple ID: Contacting Apple for help with Apple ID account security

Ask to speak with the Account Security Team...

Or Email Here > Apple Support iTunes Store Contact

More Info > Apple ID: All about Apple ID security questions

Note:

You can only set up and/or change a Rescue Email Before you forget the questions/answers

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.

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