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What's the difference between cold jokes, hot jokes, soft jokes and hard jokes?

Cold: the listener should be stupefied after listening, and think about it before he feels funny. Hot: I want to laugh when I listen. Soft: I don't know, there is an example: A: Come and see F 1, Schumacher is great. ...

B: What's there to see? He is not a driver yet.

A: ......

Hard: similar to soft jokes.