I just thought of this idea. I am currently studying some advanced abstract algebra and recently I learned about Jordan-Holder factors, central simple algebras and stuff. The concepts are very new and very abstract to me. And I want to find some examples or exercises to help me understand them. Textbook exercise has the problem of being too "typical". So I was wondering if it is okay to ask for an exercise or an example here. Such questions do risk being off-topic because it is hard to tell what exercise the asker is looking for and what answers should be deemed good answers. Any suggestions?
For example, what I had in mind was:
I want to know more about how to compute Jordan-Holder factors. Can you give me an exercise other than $\mathbb Z/p^n\mathbb Z$ (which is a typical example/exercise used in textbooks)?
To me this seems a bit off-topic as it may be unclear about exactly what kind of examples I am asking for. What additional infomation would be necessary for this to be acceptable on MSE?