Bonjour Devansh ! We had some issues with the microkwizzes which unfortunately meant that we have had to remove that feature temporarily. We are looking at how to properly implement the feature as we are aware they were popular. In the meantime, as a workaround: to quiz on a single lesson you can use the "Add to notebook" button and kwiz against the notebook - each kwiz will select a different question each time. Sorry for the inconvenience. Bonne journée !