History
Geography
Science
Brain Teasers
Random
100

Which ancient Greek city-state is known for its military discipline and warrior culture?

Sparta

100

Which country is famous for having thousands of islands and is the largest archipelago nation?

Indonesia

100

What is the name of the phenomenon where light bends as it passes through different mediums?

Refraction

100

I speak without a mouth and hear without ears. I have no body, but I come alive with the wind. What am I?

An Echo

100

What’s the only planet in the solar system that spins on its side?

Uranus

200

What revolution, beginning in 1789, led to the fall of the monarchy and the rise of Napoleon Bonaparte?

The French Revolution

200

What is the capital city of Brazil?

Brasilia

200

Which planet has the most moons in the solar system?

Saturn
200

I have keys but no locks, I have space but no room, you can enter but not go outside. What am I?

A Keyboard

200

Which country has no rivers, no lakes, and is one of the driest on Earth — despite being a developed nation

Saudi Arabia

300

What was the name of the U.S. government project during World War II that developed the first nuclear weapons?

The Manhattan Project

300

The river Nile flows into which body of water?

The Mediterranean Sea

300

In physics, what’s the unit of measurement for electric resistance

Ohm

300

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there?

4 sisters, 3 brothers

300

Which number, when written as a word in English, is the first to appear in alphabetical order?

Eight

400

Which ancient city was buried by the eruption of Mount Vesuvius in 79 AD?

Pompeii

400

Mount Kilimanjaro is located in which African country?

Tanzania

400

What’s the name of the theoretical boundary around a black hole from which nothing can escape?

The Event Horizon

400

A man rode into town on Friday. He stayed for three nights and left on Friday. How is that possible?

Horse peru da Friday

400

What unusual material was once used to make explosives and film, and is now used for ping pong balls?

Celluloid

500

Who was the first female Prime Minister of a major Western democracy?

Margaret Thatcher

500

Which landlocked country is completely surrounded by South Africa?

Lesotho

500

What is the name of the process by which DNA is copied into RNA?

Transcription

500

A woman orders a drink at a restaurant. The waiter brings it to her with ice in it.
She drinks half of it immediately, then lets the rest sit and melt while she chats with a friend.
Later, she finishes the drink.
The next day, she’s found dead — poisoned.
Her friend, who drank from the same pitcher, is fine.
Why did the woman die?

The poison was in the ice, not the drink.
She drank it once it melted. Her friend drank it while it was still frozen

500

What’s the name of the phobia that means fear of long words — and is itself a very long word?

Hippopotomonstrosesquipedaliophobia