Which river is the longest?

Who invented Jeans?

Which type of lamps consumes the least electricity with the same luminous flux?

Which of these characters is not fictional?

The smallest bird on earth is:

What is the name of words or phrases that read the same from left to right and right to left?

You are in a room 100% filled with methane gas. What happens if you light a match?

What was the predecessor to the United Nations?

In the 1700s, what did some residents of London purchase to avoid going to hell?

When did the First World War begin?

Who was the first president of the USA?

What is determined by the Snellen table?

Charlie Chaplin became famous for his memorable image as the charming and bumbling man with the bowler and cane known as ...

Tunisia’s Arab Spring uprising is known in the Western world by the name of what flower?

What Yann Martel book about a boy, a tiger, and a lifeboat became an Oscar-winning movie?

Which power plants produce the cleanest energy by harnessing the kinetic energy?

In which country is the Cesar Award for Achievement in Cinematography given annually? This awards are considered equivalent to the Academy Awards in the US or the BAFTA Awards in the United Kingdom.

What country had been the largest by area in Africa until the “South” bit of it broke away in 2011?

Which field of physics is concerned with the study of light phenomena?

What fabric is name-checked in the “divorce” that broke up Czechoslovakia into the Czech Republic and Slovakia in 1993?

Big Ben is a trademark of London and one of the most recognizable and popular tourist spots. What is the official name of this tower?

Which internal organ in the human body is the heaviest?

What was the first religion to teach monotheism, or the doctrine of one god?

Which ocean is the deepest trench in?

Shortly after Akihito ascended to the Chrysanthemum Throne, what country experienced a “lost decade” economically?

Which ancient Greek philosopher was the teacher of Alexander the Great?

Shower curtains blow in because of what principle on which airplanes depend in order to fly.

In ancient Greece, throwing an apple at someone was a declaration of what? The source of this tradition is linked to the goddess of discord, Eris, and the golden apple, which led to a competition and ultimately to the Trojan War.

How can the elevation of Mount Everest be described in relation to sea level?

Which planet is the brightest in our Solar System?