I sometimes solve and post a solution/proof of an exam (midterm, final, qualifying, entrance, etc.) problem given at various universities.
Here is the list of the universities where I borrowed problems and post solutions.
If you click the name of a university, you can see the list of exam problems of the university.
- Boston College
- Harvard University
- Johns Hopkins University
- Massachusetts Institute of Technology
- Princeton University
- Purdue University
- Stanford University
- The Ohio State University
- University of California, Berkeley
Problems are translated into English.