Also, you can check out previously asked questions about "Othello" at the link below.  There are about 200, and most should have answers.

Sure. Look no further than eNotes. If you have purchased a complete pass, then you have access to all of the lesson plan materials. In them, you'll find several quizzes, essay ideas, activities, tests, and other materials.

If you don't have a complete pass, you can still use the eNotes study guide. The summary, character analysis, critical overview, and discussions of themes and style should give you enough information to help you create your own quizzes.

 Visit the links below and see what I mean.