What's the difference between intelligence and apathy?
I don't know! I don't care!
What's the difference between intelligence and apathy?
I don't know! I don't care!
The joke plays on the listener's expectation that there will be a clever answer to the question about intelligence and apathy. Instead, the response, "I don't know! I don't care!" embodies apathy itself, creating an ironic and humorous twist.