Exam Challenge is a multi-featured application for writing exams and administering them on the same computer or other computers. (Exams can also be printed.)
The project started out when I was teaching Advanced Placement United States History in high school. Instead of wasting a dozen days a year administering tests during class hours, I wrote my tests in a predecessor of this program and administered them to students on their own time at the Mac Lab in the library. When all of my students had finished, I simply went to the computers and read out the results.
Now this is much easier. Exam Challenge has been completely redesigned, a multitude of features have been added, and each examinee's results, with complete exam data, can be emailed to you.