Here you can see how easy is to create a quiz from scratch. It doesn't mean it is the best option, but it definitely helps to understand variables.

We start by drawing or forming as many quizzes as we need, (drag and drop, pick one, pick multiple, dial, slide bar, enter text field, etc.

Then, we create one variable for each answer o possible answer. This makes it easy for the result page.

Now, triggers.

And finally, the result page, which with all the variables we made, we can easily get points or percentages.