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In Genesis's building instructions for Noah's Ark, how many cubits high was it?
Answer
30 cubits
In Genesis's Noah's Ark story, what bird first returned with no sign of dry land?
Answer
A raven
Which Greenwich site gives its name to the prime meridian?
Answer
Royal Observatory Greenwich
How long is the complete Great Wall of China according to China’s official survey?
Answer
21,196 kilometres
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Which Greenwich site gives its name to the prime meridian?
Answer
Royal Observatory Greenwich
How long is the complete Great Wall of China according to China’s official survey?
Answer
21,196 kilometres
What Leonardo da Vinci invention used two linked hulls to improve a boat's stability?
Answer
Double-hull boat
What Leonardo da Vinci invention used a paddle wheel to move a boat against a river current?
Answer
Paddle-wheel boat
What Leonardo da Vinci water-lifting device used a continuous helical screw?
Answer
Archimedes’ screw
What Leonardo da Vinci machine featured a seated mechanical knight that could move its limbs?
Answer
Leonardo’s robot