the key reason is, our way of thinking is toltally different. we always say chinese chink like circle, while westen like straight line. if you joke with those whose major is english in university, maybe they can understand you better. while, if you joke in chinese, please follow the chinese way. please don't joke with those classical chinese in english. that's terrible because you can't understand each other at all. not only the way of thinking, but also the background and culture. so we say, when you learn another language, that means you learn another way of thinking.

Western jokes are quite different from Chinese jokes.Many western people also don't accept or understand Chinese jokes.I think it's just an ordinary phenomenon.I'm not surprised at all.

so can you understand eastern humor?

We have different culture, I think that is the main reason. 我觉得主要原因是因为不同的文化。

Haha, my friend. Don't be too serious. I am just kidding. I did not say your jokes were insulting. Apparently, you cannot accept my humour.