World history
Literature
Biology
Languages
Riddles
100

Age of the universe.

13.8 billion years.

100

The most read book in the World.

The Bible

100

Biggest animal on earth

Blue Whale

100

Most spoken language in the world

Chinese

100

Walks on four feet in the morning, two feet in the afternoon and three feet at night.

Man

200
Age of humanity

200,000 years

200

The best-Selling book series in the World.

Happy Potter

200

Most dangerous animal on earth

The Tse-tse fly

200

Fastest growing language in the world

French (!)

200

There is a house. One enters blind and comes out seeing.

a school.

300

Most intelligent man ever? (clues: Italy, Renaissance, painter, inventor)

Leonardo Da Vinci

300

The most printed book of all times.

The Qur'an

300

Oldest species on earth

Crocodylian (205 million years)

300

most spoken language in Europe

Russian /German

300

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

The echo

400

Longest war in history.

Dutch-Scilly war (1651-1986)

400

British author (1890-1976). Is the best-Selling author after William Shakespeare.

Agatha Christie

400

Most popular pet in the World.

Freshwater fish

400

Most widely spoken constructed language

Esperanto

400

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman.

heroine

500

Biggest empire ever.

The British Empire

500

Country of origin of the first Nobel Prize Winner in literature.

France

500

Most endangered animal in the World.

(Amur) Leopard.

500

Biggest language in the Germanic Family (number of speakers)

English

500

Disappears as soon as you say it

silence