Problem: What is depicted on the the flag of Canada?
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A: maple leaf

Problem: Milt is the sperm-filled reproductive gland of which type of creature?
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A: fish

Problem: What building stands at 32, London Bridge Street on the site of the Southwark Towers office block which was demolished in 2008?
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A: shard

Problem: Earliest human use of fire for cooking has been dated at how many years ago?
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A:
one million