Which food supposedly never spoils and was found still edible in pharaohs' tombs?
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Honey
Its low water content inhibits bacteria.
💡 Did you know? It crystallises but practically never rots.
All questions with answers
Which fruit is botanically a berry and grows on a giant herb, not a tree?
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Banana
The banana plant is the largest herb.
💡 Did you know? Strawberries, by contrast, aren't true berries.
Which animal has the largest heart of any creature (the size of a small car)?
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Blue whale
Its heart weighs several hundred kilograms.
💡 Did you know? It is the largest animal that ever lived.
How many hearts does an octopus have?
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Three
Two pump to the gills, one through the body.
💡 Did you know? Its blood is also blue.
What gives flamingos their pink colour?
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Their food
The pigments (carotenoids) colour the plumage.
💡 Did you know? Without that diet they'd be greyish-white.
What happens to the Eiffel Tower in heat (in summer it grows by about …)?
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15 centimetres taller
The iron expands in the heat.
💡 Did you know? In winter it shrinks again.
Which common myth about a duck is false (its … supposedly makes no echo)?
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Quack
Researchers disproved the myth experimentally.
💡 Did you know? The echo is just hard to pick out.
Which animal can sleep for several years at a stretch (in dormancy)?
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Snail
Some land snails enter a dry dormancy.
💡 Did you know? This lets them survive long dry spells.
Which English word had the most definitions, over 400, in the second edition of the Oxford English Dictionary?
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Set
It can be noun, verb and adjective.
💡 Did you know? It has since been overtaken by “run”, which has more than 600 senses in the revised Oxford dictionary.
Which plant group does the peanut botanically belong to (unlike “true” nuts)?
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Legumes
It ripens underground.
💡 Did you know? That's why it's called ground-nut.
What do cows form within the herd, spending more time with certain fellows?
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Friendships
Separated from a friend, their stress rises.
💡 Did you know? Cows are highly social animals.
What is (almost) impossible for a human to do while sneezing?
Show answer
Keeping your eyes open
The sneeze reflex shuts the eyelids automatically.
💡 Did you know? Exactly why is not fully settled.
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