Problem: Who first devised the central relativity principle within Einstein's Theory of Relativity?
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A: galileo

Problem: On which Hebridean island was the BBC programme 'Castaway 2000' set?
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A: taransay

Problem: What is the name of the liquid rock which pours from a volcano?
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A: lava

Problem: Which is 'Queen of the Sciences'?
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A:
mathematics