Yes. You can share your questionnaire with any user from your email domain. They can then review, amend and update the questionnaire as they wish.
You are able to see when someone else is working on a questionnaire as their initials will be displayed in the top right corner of the screen.
It is also possible to download an Excel spreadsheet of a questionnaire at any time, which details each question, the possible answers (where relevant) and the current selections made or bespoke answers given.