This is an assignment that was used in a middle school (8th grade, although 7th and 9th grade students could do as well) math classroom as a group assignment. It contains 12 math and logic problems of varying difficulty. Since the assignment was originally given to a group, it allowed for diffierentiation as students could choose the problem(s) they thought would best challenge them, and help others as needed. Some of the problems involve ratios or proportions, while others involve thinking out of the box a little bit.(I can supply an answer key, if needed.) The document is a .doc file.