There is more than one way to work through this particular situation, I will offer one solution (this is the simplest thing that comes to my mind presently).
Since you are creating this logic in the designer and not in the workflow you only have access to the question value. Consequently, you could look up the question by the question text using a filter as I suggested previously, but I don’t personally like this method. So what I would do is this:
- Add a hidden text box on the page, search for the random question and add the value of the question’s unique id to that text box.
- Then use this unique id value to look up both the question text and the answers.
Alternatively, you could store the random question on a state using a workflow and then you would have access to the question wherever you needed it.