Euro is the official currency in the United Kingdom.
The first country in the world to use postcards was the United States of America.
The capital of Australia is Canberra.
The first product with a bar code was chewing gum.
A baby whale is also called a calf.
Black is the most commonly used colour in all national flags around the world.
The atomic number for lithium is 17.
Mice have more bones than humans.
Tea contains more caffeine than coffee and soda.
Idina Menzel sings 'let it go' 21 times in 'Let It Go' from Frozen.
A male canary tends to have a better singing voice than a female canary.
The Beatles is a famous rock band from Manchester, the United Kingdom.
Lungs are the largest internal organ in the human body.
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