Can I skip a question in an exam and return to it later?

You can skip a question in an exam by clicking the Skip Question button under the Time Left counter on the right, as you see in the image below:

The bar at the top of the exam shows your progress through the questions. If you skip a question, that segment of the progress bar appear gray instead of orange, as you see below.

Click the gray section of the progress bar to return to the question that you skipped.