1. There is only ONE, 'without-a-doubt' correct answer!
It might seem like common sense but answers that are too similar, or too vague, present a problem.
Try an answer that is pretty close to the right answer or a commonly mistaken answer but decidedly the wrong choice, an answer that's in the realm of possibility, and one that's way off-base. for your players, it should quickly narrow to a choice between 2 strong possibilities.
8. Don't make the Q's too easy
(or too hard)...
Making it easy does not make it fun; We all like a good challenge. As long as it's not too challenging. On the other hand, if the user is unlikely to know the answer and has to guess, it will also be less enjoyable.
It only takes 2 consecutive Q's with high-difficulty levels to get 50% of players frustrated.
9. Begin at the end.
Write the Insight or Learn More Item first. Learn More items can be text, or an image, or a website, or a video, or a PDF.
As a rule, there should be one Learn More Item for each unique 'Action' listed in your Q's.
10. The insight should be actionable...
...not just a lesson to memorize! Make sure the info is useful, applicable to the ONE THING, and drives Users to take ACTION! That's how you build habits.