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Logical Brainteasers
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What is the most abundant element in the universe?
Hydrogen
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If an electric train is moving south, which way is the smoke going?
There is no smoke; it's an electric train.
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Which vitamin is produced when the skin is exposed to sunlight?
Vitamin D
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What has a head and a tail but no body?
A coin
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In what region of the world is the Sahara Desert located?
Africa.
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Which country has the most natural lakes?
Canada
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Which animal is known for its ability to change color for camouflage?
Chameleon.
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What runs around a backyard yet never moves?
A fence.
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If a farmer has 10 cows and all but 7 die, how many cows does he have left?
7 cows.
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If a plane crashes on the border of the US and Canada, where do they bury the survivors?
You don’t bury survivors
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What has a face and two hands but no arms or legs?
A clock.
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If you throw a red stone into the blue sea, what will it become?
Wet.
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What is the term for animals that are active during the night?
Nocturnal
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What day is always coming but never arrives?
Tomorrow
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What word becomes shorter when you add two letters to it?
Short (adding "er" makes it "shorter").
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What is the capital of Iceland?
Reykjavik.
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What monster looks like it's wrapped up in toilet paper?
A mummy
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What can you catch but not throw?
A cold.
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Which organ is responsible for filtering waste from the blood?
The kidneys.
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Which type of blood cells are responsible for carrying oxygen?
Red blood cells
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If two’s a company and three’s a crowd, what are four and five?
Nine.
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What nutrient is essential for repairing muscles after exercise?
Protein
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What monster is count dracula?
A vampire
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If a rooster lays an egg on a barn roof, what direction does it roll?
Roosters don’t lay eggs.
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What is the only mammal capable of true flight?
A bat.
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What is the longest river in Asia?
Yangtze River.
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What is the term for the process by which water vapor turns into liquid water?
Condensation
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What is full of holes but still holds water?
A sponge.
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If you take two apples from three apples, how many do you have?
Two apples (the ones you took).
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If you drop me, I’ll crack, but if you smile at me, I’ll smile back. What am I?
A mirror.
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Which country in South East Asia is found in-between Vietnam and Thailand?
Cambodia
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What animal is known for its strong sense of smell and is often used in search and rescue operations?
Dog
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What has a thumb and four fingers but is not alive?
A glove.
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What has cities but no houses, forests but no trees, and rivers but no water?
A map.
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What can fill an empty room but takes up no space?
Light.
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Which gas is most abundant in Earth’s atmosphere?
Nitrogen.
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I speak without a mouth and hear without ears. What am I?
An echo.
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What part of the eye is responsible for focusing light?
The lens
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What is the main diet of giant pandas?
Bamboo
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