Possible Clues:

• Conceptualism debate starter
• Doubter’s question at a museum
• Question one might ask when looking at a banana taped to the wall
• Modern museum question
• The Devil’s repeated question in Kipling’s “The Conundrum of the Workshops”
• 'Interesting ... but museum-worthy?'
• Query upon witnessing a hanging?
• Question to a museum visitor
• Aesthete's question
• Inane museum question