I have exported attachments from Salesforce using Data Export but now need to match these attachments to the original records they were linked to so I can rename the attachments with the name of the record. Is there a way to do this?

Hello Folk,
How to update Time Zone based on ZipCode provided by User? What approach should I use? Trigger or Flow? Should I need REST API for for same? Please suggest.

Write an apex program, to insert an Account Record, and 5 Related Contacts, and 4 Related Opportunities, and 2 Related Case records inside the object.
Account record(1)