How can find my security question ?

How to reset your Apple ID security questions

• Go to appleid.apple.com and click on the blue button that says 'Manage Your Apple ID'.
• Log in with your Apple ID and password. If you have forgotten your Apple ID password, go to iforgot.apple.com first to reset your password with a password recovery email.
• Go to the Password & Security section on the left side. Then underneath the security questions click on the link that says 'Forgot your answers? Send reset security info email to [email]'. This will generate an automated e-mail that will allow you to reset your security questions.

If that doesn't work, or there is no rescue email link available, then:

• click on 'Temporary Support PIN' that is in the bottom left side, and generate a 4-digit PIN for the Apple Account Security Advisor you will be contacting later.
• Next, go to getsupport.apple.com. If you see a message that says 'There are no products registered to this Apple ID, simply click on 'See all products and services'.
• Choose 'More Products & Services', then 'Apple ID'.
• A new page will open. Choose 'Other Apple ID Topics', then 'Forgotten Apple ID Security Questions'.
• Click the blue 'Continue' button.
• Select the contact option that suits your needs best.

The above information quoted with gratitude from TJBUSMC1973, another user in these forums.

Forum Tip: Since you're new here, you've probably not discovered the Search feature available on every Communities page, but next time, it might save you time (and everyone else from having to answer the same question multiple times) if you search a couple of ways for a topic, both in the relevant forums and in the Apple Knowledge Base before you post a question.

Regards.