Science
What is the hardest natural substance?
Diamond
What has one eye but cannot see?
Needle
What is the square root of 225?
15
What is the largest ocean on Earth?
Pacific Ocean
Who was the first president of the United States?
George Washington
Who invented the light bulb commonly credited in history books?
Thomas Edison
What particle has no electric charge?
Neutron
A man is looking at a photograph. Someone asks, “Who’s in the picture?” He replies, “Brothers and sisters I have none, but this man’s father is my father’s son.” Who is in the picture?
His son
If a train travels 60 mph for 2½ hours, how far does it travel?
150 miles
What is the capital of Canada?
Ottawa
Which ancient civilization built the pyramids of Giza?
The ancient Egyptians
What has many keys but can’t open a single lock?
A piano
What is the only metal that’s liquid at room temperature?
Mercury
What appears once in a minute, twice in a moment, but never in a thousand years?
The Letter M
What is the next number? 1, 1, 2, 3, 5, 8, __
13
Which continent has the most countries?
Africa
In what year did the United States declare independence?
1776
Which brothers invented the first successful airplane?
The Wright brothers
What organelle is known as the powerhouse of the cell?
Mitochondria
Two fathers and two sons go fishing. They catch three fish, and each person gets one. How is this possible?
They are a grandfather, a father and a son
A rectangle has a length of 12 and a width of 8. What is its area?
96
What river flows through Egypt?
Nile River
Which ship sank after hitting an iceberg in 1912?
The Titanic
The more you take away from me, the bigger I become.
A hole
What is the chemical symbol for gold?
Au
What five-letter word becomes shorter when you add two letters?
Short
What is the value of π rounded to two decimal places?
3.14
What is the smallest country in the world?
Vatican City
Which wall fell in 1989 and became a symbol of the end of the Cold War?
The Berlin Wall
Which invention made it possible to preserve food for months without refrigeration during the early 1800s?
Canning
What is the name of the process plants use to turn sunlight into energy?
Photosynthesis
What disappears the moment you say its name?
Silence
If two angles of a triangle are 45° and 65°, what is the third angle?
70°
Which mountain range separates Europe and Asia?
The Ural Mountains
What document signed in 1215 limited the power of the English king?
The Magna Carta
What has one head, one foot, and four legs?
A bed
What is the smallest unit of an element that still keeps the element’s properties?
An atom
The person who makes it doesn’t need it. The person who buys it doesn’t use it. The person who uses it doesn’t know it.
A coffin
Which number is missing? 2, 6, 12, 20, 30, 42, __
56
Which country is completely surrounded by South Africa?
Lesotho
Which West African ruler became famous for his wealth and pilgrimage to Mecca?
Mansa Musa
What symbol raises a musical note by one half step?
Which planet has the most moons in our solar system?
Saturn
What can run but never walks, has a mouth but never talks?
A river
562 + 20 =
Which country has the longest coastline in the world?
Canada
Which empire captured Constantinople in 1453?
The Ottoman Empire
Which instrument has 88 keys?
Piano