Is there a limit to the number of quizzes I can create?

Ordinary creators (i.e. those who are not Editors/Curators) get to contribute 50 public quizzes in every calendar month, which resets on the 1st day of each month.

One caveat - no more than three in an hour. Orange Users get to contribute 100 public quizzes each month.

If one of your quizzes is published to the front page, you get six extra bonus quizzes, but these expire at the end of the month. You can create up to 100 private quizzes in each month.