Create Random Assignments is a Chrome app that allows you to automatically create a random set of questions for each student from a spreadsheet with the question list. These questions can then be emailed to each student individually. It will also create a random exam that can be printed. This would be useful for you if you were worried about students cheating on assignment.
As you can see from the image below, you can add the name of the assignment, and the location of the spreadsheet with the questions it will pull from and the spreadsheet with student names and email addresses. Then, you select the number of questions and if you want it emailed or printed. Finally, the app does the rest of the work for you – emailing assignments or creating the individualized exam files you can print.