For the nonsense answers, I have to say that if someone asked me that, I might very well reply with made up nonsense.

Sounds like a perfectly valid Dr. Seuss answer to a Dr. Seuss question.

To me this is more human seeming and demonstrates more personality then just saying, “I don’t understand your question?”

Of course as others have pointed out, if you want it to get serious, you have to demonstrate that it should respond with a “That’s a Stupid Question” if you want it to do so.

What would be interesting is if could master the usage of a sarcastic or silly emoji to tag when it was making stuff up versus being serious.