How am I supposed to know? - Multiple choice quiz

Questions from the German quiz show, "Wer weiss den sowas?". The questions seem impossible, but you might be able to guess them with the multiple choice.
Quiz by kaderschaufel
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Last updated: May 27, 2021
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First submittedMay 27, 2021
Times taken34
Average score41.7%
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1. How do you keep a lemon from getting mouldy?
Store it in a water-filled jar.
Store it in a plastic bag in the bathroom.
Put it next to an apple in a fruit bowl.
It prevents oxygen from getting to the lemon.
2. What's useful for cleaning a cooking grid?
Orange Juice
Onion
Cornflakes
The essential oils of the onion are a fat solvent.
3. What does the ORAC-value on groceries stand for?
Antioxidant effect
Vitamin absorbance expressed as a percentage
Muscle building potential
It stands for Oxygen Radical Absorbance Capacity.
4. If you publish a new children's book in Norway, then
you have to read it once in a Kindergarten in an honorary capacity.
you can be sure that the government will buy 1500 copies.
you should be careful that no foxes appear in it.
5. Which novelty from England might soon make streets safer?
Proactive sound-wave-traffic-light-system
LED-crosswalks reacting to traffic
Magnetic stopping procedure at dangerous crossings
6. What can cause back aches?
Horizontally oriented bicycle seat
Wallet in the back pocket
Wearing socks with flip-flops
7. Why does the body temperature of astronauts in space increase?
Their skin pores get tightened.
Their sweat evaporates less.
They use more energy by moving around.
8. What happens, if you put a copper spiral over a candle flame.
The flame turns blue.
The flame goes out.
The spiral starts glowing.
The spiral takes heat from the candle, so the temperature sinks below the combustion temperature of wax.
9. The Mercator projection makes sure that
Greenland appears to be the same size as Africa on maps.
people think that they're smarter than the masses.
pictures on the cinema screen aren't back-to-front.
10. It takes more than 400 years to
go around the earth at walking pace ten times.
spend a night in every hotel room in Las Vegas.
watch one episode a week of The Simpsons.
There are almost 150.000 hotel rooms in Las Vegas
11. What's special about a cone snail?
It hypnotizes other snails with its rotating eyes.
It renders fish defenseless with insulin.
It opens sea anemones by tickling them.
12. What do most robotic lawn mowers come with?
Grinding knife
Coil with cable
Funnel for water filling purposes
It's a boundary wire which is recognized by the robot.
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