Have you ever deleted a question by accident? Don't worry, it happens. As off Dec 11th, 2016, Helpjuice will allow you to recover deleted questions.
Info: the steps described in this page can only be performed by an admin or collaborator.
Every time a question is deleted, an activity is registered in Activities page. There will be a link in that page to undo the action, like shown below:
All you need to do is click on Undo and the question will be restored to where it was.