I recently found tech.io's playgrounds. I'm absolutely amazed with their quiz Markdown extension. I have a blog created with Pelican, and this type of quizzes would be a perfect addition.
For those unfamiliar with tech.io's quiz syntax...
?[How do you say 1 in spanish?]
-[ ] eins
-[x] uno
-[ ] unu
What type of processor should I use? Any suggestion about how should it look like?