I know lots of universities offer phd in math, but some are exceptionally tough while some are manageable. I want to know which of them are the easiest of all. By "easiest" I mean, simple exams (not extremely complicated), or take home exam if possible, easy oral defense questions, etc etc. I don't care if university is not high ranked. It should be accredited and that's all I want. I am half way through my master's degree in math but I don't want to take more headache of super tough doctoral study in math. I can do the doctoral program if its manageable. If exams are super human like or similar, then forget it.