Science
History
Geography
Mystery
10

What is the hardest natural substance on Earth?

Diamonds!

10

Who was the first Mughal emperor to sit on the throne of Delhi?

Babur

10

Which continent has penguins naturally? 

Antarctica

10

Which gas is known as 'Laughing Gas'?

Nitrous Oxide

15

What is the instrument used to measure atmospheric pressure?

Barometer

15

Which treaty formally ended World War I in 1919?

Treaty of Versailles

15

Which river flows through London?

River Thames

15

Which scale is used to measure the intensity of earthquakes?

Richter Scale

20
What is the approximate speed of light?

300,000 km/s

20

Who was the Prime Minister of Britain during the majority of World War II?

Winston Churchill

20
Which is the deepest ocean trench in the world?

Mariana Trench

20

What was the name of the antient trade route connecting China the Mediterranean? 

Silk Route

25

What is the pH value of pure water?

7

25

What was the main reason for the 1930 Dandi March?

To protest the British tax on salt

25

Which Indian state is known as the Land of Rising Sun?

Arunachal Pradesh

25

Name of the first artificial satellite launched by the USSR in 1957?

Sputnik 1

30

What is the name of the force that resists motion between two surfaces?

Friction

30

The Berlin Wall fell in which year, signaling the end of the cold war?

1989

30

Which mountain range separates Europe and Asia?

Ural Mountains

30

 Which part of the human brain controls balance and coordination? 

Cerebellum

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