Geography
History
Science
English
100

What's the largest continent on Earth?

Asia

100

Who was the only emperor in Brazil?

D. Pedro I

100

What's the hottest planet in the Solar System?

Venus

100

By the time they ... (arrive), the train .... (leave).

By the time they arrived, the train had (already) left.

200
What's the longest river on Earth?

the Nile

200

Which one lasted longer: WWI or WWII? 

WWII (1939 - 1945)

200

What is the hardest natural substance?

Diamond

200

Correct this question:

Could you tell me how did you carry out the survey?

Could you tell me how you carried out the survey?

300

What's the most populous country?

China

300

When did the Soviet Union end?

1991

300

What Law says that "for every action, there is an equal and opposite reaction"?

Newton's Third Law

300

He's a very s.... person. He always helps me choose the solution that's best for me. 

sensible

400

What's the biggest lake in the world?

The Caspian Sea

400

What country did Iraq invade which made the Gulf War break out?

Kuwait

400

What protein in blood carries oxygen?

Hemoglobin

400

What expression do we say when: we feel demotivated and bored in an unfulfilling routine? "St... i... a... r..."

Stuck in a rut

500

What country in Africa produces the most gold?

Ghana

500

In what country did the Arab spring start?

Tunisia

500

What's the biggest star constellation by area?

Hydra 

500

How can I say a strong suggestion to someone in the following sentence?

"You _____ better hurry, or else you'll lose your job!"

You had better hurry

or

You'd better hurry

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