Question: how are you answer in creative way?
Answer: Overworked and underpaid.
Nothing much. (This one is so trite that it takes a few moments for the humor to sink in.)
I don't know, you tell me. ... 
Can't complain. ... 
Good enough. ... 
If I were any better, I'd be you.
Quite how, thank you. ... 
Not so well, does that bother you?