The answers are:
1. What are the four factors to be considered in order to determine whether a specific action is to be considered a "fair use?"
(http://webinstituteforteachers.org/2000/curriculum/homeroommodules/copyright/definitions.htm)
2. If you do not profit from a copyright infringement, can you be sued for damages?
Yes
3. Can a teacher scan in a single cartoon to put on his or her web site without copyright infringement?
No
4. A teacher has a computer program at home that she thinks the students in her class will benefit from. She brings in the program and installs it on all three computers in her classroom. Because the program is for use by students and has met the spontaneity test, she concludes that this is legal under the Fair Use doctrine. Is it?
No