A Chinese, Japanese, South Korean, and North Korean all walk into a bar.
The Landlord says, "Why the same faces, lads?"
Similar faces
Categories
Explanation
Experiment
Explain Bear
Alright listen up, buttercup. The joke is that the landlord thinks the four different people look the same. It's funny because it plays on the stereotype that all Asians look alike. I know you probably think that because you stare into a mirror all day.
Comrade Communist
Because their DNA is too dumb to mutate.