I love questions that have no answer. Many years ago a child asked me the name of a flower he'd picked, and I said "It's a Bluebell." and he looked at me wide-eyed and said "But why doesn't it ring?"
In Eastern philosophy, especially Zen Bhuddism, the answer to a question like this will be Mu - Wu in Chinese - and it means something like "the question must be unasked." It's a simple but surprisingly effective word; how many times do we formulate questions which we assume will have a Yes/No answer when in fact Mu might be much more revealing? Perhaps Mu is the answer to many of the big questions we ask:
"What was there before there was anything?"
"What is consciousness?"
"What is the purpose of life?
Interesting sideline: I just put Mu + "the question must be unasked" into Google and it came up with 2 websites. I clicked on the top one and it took me to... The Four Ages of Sand!
Anyway, I was reminded of unasking questions during a discussion with my Somali and Turkish students on the political parties. They are at a L1 level of speaking which means they can discuss abstract ideas but are still impeded by vocabulary and grammar. They were struggling with the names of the parties - Labour, Lib Dem etc - so to make things simpler I started refering to The Red Party, The Blue Party and The Yellow Party. Later I asked them if they knew any other parties. They didn't, so I told them about The Green Party. One of my students said "But Sir, what is The Green Party called?"