Title: Neolithic.
Question: What trend led to a major shift in the livelihoods of early cultures?

Title: New Delhi.
Question: What is New Delhi's rank in Mercer's 2015 quality of living survey?

Title: Middle Ages.
Question: Who noted the prevalence of wall-paintings in Western churches of this era?

Title: Norfolk Island.
Question:
Who was the last Chief Minister of Norfolk Island?