General Knowledge
Which country has the largest population in South America?
Brazil.
Brazil is the largest country in South America by both land area and population. It is home to more than half of the continent's population and contains a large portion of the Amazon Rainforest.
Why does the Moon appear to change shape during the month?
Because we see different amounts of its sunlit side.
The Moon doesn't actually change shape. As it orbits Earth, the angle between the Sun, Earth, and Moon changes, creating different phases such as the new moon, first quarter, and full moon.
Which is the largest desert in the world?
Antartica.
A desert is defined by very low precipitation, not by temperature. Antarctica receives very little precipitation, making it the world's largest desert. The Sahara is the world's largest hot desert.
Which country is famous for the ancient city of Rome?
Italy.
Rome is the capital of Italy and was once the centre of the Roman Empire. The city is also home to famous historical sites such as the Colosseum and the Roman Forum.
What is 15% of 200?
10% of 200 = 20
5% of 200 = 10
So, 15% = 20 + 10 = 30.
Which city is located on two continents?
Istanbul lies on both Europe and Asia, separated by the Bosphorus Strait. It was historically known as Constantinople and has been an important centre of trade and culture for centuries.
Which blood cells are primarily responsible for fighting infections?
White blood cells
White blood cells are part of the immune system. They identify and help destroy pathogens such as bacteria and viruses.
Which river flows through Egypt and is one of the world's longest rivers?
The Nile River.
The Nile flows northward through northeastern Africa and has historically been essential to Egyptian civilization because it provides water and fertile land in an otherwise dry region.
Which country is the birthplace of the Olympic Games?
Greece
The ancient Olympic Games were held at Olympia in Greece. The modern Olympic Games were revived in 1896 in Athens.
If 3x + 5 = 20 , what is the value of x?
5.
First subtract 5 from both sides:
3x = 15
Then divide by 3:
x = 5
Which country has the largest number of natural lakes in the world?
Canada.
Canada has an enormous number of lakes—more than two million according to commonly cited estimates. Its lakes were largely shaped by glaciers during the last Ice Age.
Why does ice float on liquid water?
Ice is less dense than liquid water.
When water freezes, its molecules form an open crystal structure that takes up more space. This makes ice less dense, allowing it to float.
Which country is home to the famous ancient pyramids of Giza?
Egypt.
The Pyramids of Giza were built thousands of years ago as monumental tombs for ancient Egyptian pharaohs. The largest, the Great Pyramid of Giza, is the only surviving Wonder of the Ancient World.
Which ancient civilization built Machu Picchu?
The Inca civilization.
The Inca built Machu Picchu in the Andes Mountains of present-day Peru. It was part of the Inca Empire, which was the largest empire in pre-Columbian America.
A rectangle has a length of 12 cm and a width of 7 cm. What is its area?
84 cm²
Area of a rectangle = length × width
12 × 7 = 84
Which two countries share the longest international land border in the world?
Canada and the United States
Their border stretches for roughly 8,900 km, including the boundary between Canada and Alaska. It is the world's longest international land border.
Why do we experience different seasons on Earth?
Because Earth's axis is tilted.
Earth's axis is tilted about 23.5°. As Earth orbits the Sun, different parts of the planet receive different amounts and angles of sunlight throughout the year.
Which mountain range contains Mount Everest?
The Himalayas
The Himalayas stretch across several Asian countries, including Nepal, India, Bhutan, Pakistan, and China. Mount Everest, at about 8,849 metres, is Earth's highest mountain above sea level.
In which country did Shakespeare live and write his famous plays?
England.
William Shakespeare was an English playwright and poet who lived during the late 16th and early 17th centuries. His famous works include Romeo and Juliet, Hamlet, and Macbeth.
A jacket costs $80 and is reduced by 25%. What is the sale price?
$60.
25% of $80 = $20.
So:
$80 − $20 = $60
Which country is the only country in the world that is completely surrounded by another country?
Vatican City.
Vatican City is completely surrounded by Italy and is located within the city of Rome. It is also the smallest internationally recognized independent state in the world by area and population.
What would happen to your weight if you travelled from Earth to the Moon?
You would weigh about one-sixth as much.
The Moon has much weaker gravity than Earth—about 1/6 of Earth's gravitational strength. Your mass would stay the same, but your weight would decrease.
Which country has territory in both North America and Europe?
Denmark is a European country, but the Kingdom of Denmark includes Greenland, which is geographically part of North America. This makes the broader kingdom transcontinental.
Which ancient civilization is famous for developing hieroglyphics?
Ancient Egyptians.
Ancient Egyptians used hieroglyphics as a writing system that combined pictures and symbols. They appeared on temples, tombs, monuments, and other objects, helping historians understand ancient Egyptian society.
A number is multiplied by 4, then 7 is added. The result is 31. What is the number?
Let the number be x:
4x + 7 = 31
Subtract 7:
4x = 24
Divide by 4:
x = 6