QUESTION: Trivia question: The Iris has a thick-stemmed root instead of a bulb. By what name is this 'root' known?
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ANS: rhizome

QUESTION: Trivia question: Which is the longest motorway in Britain?
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ANS: m6

QUESTION: Trivia question: In ancient Greek legend, soldier Pheidippedes collapsed and died after running over twenty-five miles to Athens to give news of which battle?
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ANS: marathon

QUESTION: Trivia question: What was the submarine developed by US engineer Robert Fulton in 1803?
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ANS:
nautilus