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15 Challenging Questions
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Question 1 of 15
Which planet has the most moons?
Saturn
Neptune
Uranus
Jupiter
Question 2 of 15
Who wrote the dystopian novel "Brave New World"?
Aldous Huxley
Philip K. Dick
Ray Bradbury
George Orwell
Question 3 of 15
In what year was the euro introduced as physical currency?
1999
1995
2002
2004
Question 4 of 15
What is the SI unit of electric current?
Watt
Volt
Ampere
Ohm
Question 5 of 15
Which chess piece can move only diagonally?
Bishop
Queen
Rook
Knight
Question 6 of 15
Which U.S. president served the shortest term?
Zachary Taylor
Millard Fillmore
William Henry Harrison
James Garfield
Question 7 of 15
What is the most spoken language in the world by native speakers?
Hindi
Mandarin Chinese
English
Spanish
Question 8 of 15
Which country invented paper money?
Italy
Turkey
Egypt
China
Question 9 of 15
Which organ is responsible for filtering blood in the human body?
Kidney
Liver
Heart
Lung
Question 10 of 15
What is the name of the galaxy we live in?
Triangulum
Milky Way
Whirlpool
Andromeda
Question 11 of 15
Which country has the oldest continuously used national flag?
Sweden
Austria
Japan
Denmark
Question 12 of 15
How many squares are there on a standard chessboard?
100
49
81
64
Question 13 of 15
Who was the first woman to win a Nobel Prize?
Marie Curie
Dorothy Hodgkin
Ada Lovelace
Rosalind Franklin
Question 14 of 15
Which ancient civilization built Machu Picchu?
Olmec
Aztec
Inca
Maya
Question 15 of 15
What is the main gas found in the air we breathe?
Carbon Dioxide
Hydrogen
Nitrogen
Oxygen
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