Q: What is the world's hardest question?
A: an unknown question. that's what makes a question hard. not knowing it. more than not knowing the answer, i'm talkin about not knowing the question. take it a step even further, how about not even knowing whether or not there is a question. i was going to take it another step even further and say it's even harder when you don't even suspect the possibility that there could be a question, but that's actually way easier because you don't think about it. so, in conclusion, the hardest question is when you think there might be a question but you're not sure if there is