question: What is the answer: What is the name for the region of an astronomical object from which externally received light originates, which extends into a star's surface until the gas becomes opaque?
answer: photosphere

question: What is the answer: Xylology is the study of which natural substance?
answer: wood

question: What is the answer: Which European capital city lies at the confluence of the rivers Danube and Sava?
answer: belgrade

question: What is the answer: What is the first name of Captain Mainwaring in the UK television series 'Dad's Army'?
answer:
george