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1,061 accepted98% rate18.3 hours
Which chemical element has the symbol He?
Which composer wrote the Ninth Symphony known as the Choral?
In what year did the Cuban Missile Crisis take place?
Who wrote the Harry Potter novels?
Which country won the FIFA World Cup in 1994?
Which is the longest river in South America?
Which is the hardest natural mineral on the Mohs scale?
Which ocean is the largest by surface area?
How many millimetres are in a metre?
Which programming language was created by James Gosling at Sun Microsystems?
Which scientist proposed the theory of general relativity?
In what year was Instagram launched?
Which gas do plants absorb from the air for photosynthesis?
How many holes are played in a standard round of golf?
Which physicist discovered radium and polonium with her husband?
At what temperature in degrees Celsius does water boil at sea level?
How many bones are in the adult human body?
In what year did the Soviet Union dissolve?
Which chemical element has the symbol Hg?
Which country is home to the Eiffel Tower?
Which naturalist wrote On the Origin of Species?
Which chemical element has the symbol W?
In what year was the Magna Carta sealed?
Which chemical element has the symbol Sn?
Which country is home to the Taj Mahal?