You should be using an up-to-date version of your browser. Chrome and Firefox typically update by themselves, but Internet Explorer may not. You need to be using at least IE 10 to play and hear the videos. To find out which browser version you are using, go to: https://www.whatismybrowser.com/
The quiz questions come from the video AND the workbook. Download the workbook in Lesson One.
Move through each lesson by watching the video and reading the workbook information. This was covered in your welcome email, the first lesson, and the workbook.