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Challenging Knowledge Quiz
Question 1 of 10
What is the square root of 121?
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Question 2 of 10
Which country is home to the Great Victoria Desert?
Question 3 of 10
What is the hardest natural substance on Earth?
Question 4 of 10
In Greek mythology, who is the king of the gods?
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Question 5 of 10
Which artist is famous for cutting off part of his own ear?
Question 6 of 10
What gas do plants absorb from the atmosphere for photosynthesis?
Question 7 of 10
What is the official language of Brazil?
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Question 8 of 10
Which famous scientist developed the three laws of motion?
Question 9 of 10
What is the largest internal organ in the human body?
Question 10 of 10
What is the value of pi to two decimal places?
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