What killed the dinosaurs? Ice

Arnold Schwarzenegger as Mr Freeze asking what killed the dinosaurs before answering the ice age, from Batman and Robin, used for cold punchlines and reveals.

This clip captures Arnold Schwarzenegger as Mr Freeze delivering one of his most quoted ice puns from Batman and Robin. He asks the question in a slow, theatrical pause, then lands the answer with heavy emphasis on the ice age. The delivery is completely dead serious, which is what makes it so funny out of context. The deep accent, dramatic timing and over the top villain energy turn a simple line into an instant punchline. It works because everyone recognises the setup before the payoff hits, and the contrast between menace and silliness keeps it memorable.