šŸŒ Countries & Geography
🧠 Riddles & Logic
šŸ“š Words & English
šŸ”¬ Science
🌐 World Knowledge
100

What country has the most time zones in the world?

France

100

What has to be broken before you can use it?

An egg

100

What planet is known as the Red Planet?

Mars

100

What element has the chemical symbol ā€œWā€?

Tungsten

100

Which country has the most official languages?

Zimbabwe (16 official languages)

200

What is the capital of Australia?

Canberra

200

I speak without a mouth and hear without ears. What am I?

An echo

200

What gas do humans breathe in that plants produce?

Oxygen

200

What is the only metal that is liquid at room temperature?

Mercury

200

What is the only country in the world named after a woman?

Saint Lucia

300

Which country is both in Europe and Asia and controls the Bosporus Strait?

Turkey

300

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

A keyboard

300

What is the hardest natural substance on Earth?

Diamond

300

What part of the brain controls balance and coordination?

Cerebellum

300

Which country has no rivers at all?

Saudi Arabia

400

What is the longest river in the world (according to most modern measurements)?

The Nile

400

A man looks at a painting and says: ā€œBrothers and sisters I have none, but that man’s father is my father’s son.ā€ Who is in the painting?

His son

400

What part of the atom has a positive charge?

Proton

400

What law states energy cannot be created or destroyed?

Law of Conservation of Energy

400

Which country is the only one in the world that borders just one other country?

Canada

500

Which African country has the most pyramids?

Sudan

500

You have 3 switches outside a closed room and 3 light bulbs inside. You can only enter the room once. How do you figure out which switch controls which bulb?

  • Turn on switch 1 and leave it on for a few minutes
  • Turn it off, then turn on switch 2
  • Enter the room:
    • The bulb that’s on = switch 2
    • The bulb that’s off but warm = switch 1
    • The bulb that’s off and cold = switch 3
500

What is the speed of light (roughly)?

300,000 km/s

500

What particle has no charge and is found in the nucleus?

Neutron

500

What is the only country in the world whose name contains all five vowels (a, e, i, o, u)?

Mozambique