Q: Which medical device, used for auscultation was invented by Rene Laennec in 1816?
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A: stethoscope

Q: In Green Mythology which god gave Perseus his winged sandals?
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A: hermes

Q: Many cities, including Sofia, Tallinn, St Petersburg, Warsaw, Jerusalem and Belgrade, have cathedrals dedicated to which Russian saint?
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A:
alexander nevsky