I mistakenly deleted a question on the Microsoft form and now I can't see the answer

Brigyth27280 out of the box it's not possible to recover answers if the question has been deleted (although Microsoft might be able to if you do a support call). This is one of the reasons why in my company we always save each response into a SharePoint list via a flow in Power Automate.

Rob
Los Gallardos
Intranet, SharePoint and Power Platform Manager (and classic 1967 Morris Traveller driver)