Irony serves as humor in Russia — it’s an extention of their profound nihilism. Everything is futile.
British humor is uniquely witty, connecting distant subjects in surprising ways. The more distant, the better. Is this a luxury of being island people?
German humor is sarcasm, shaming people into doing their duty.
Ukrainian humor, seems to be uniquely diminutive — applying the Ukrainian languages endless gradients of diminutives to surprising subjects or in surprising ways. I think it’s a coping mechanism for the difficult life which Ukrainians have long suffered.