1 OF 5
Space
Easy
Which planet is most famous for its prominent system of visible rings?
YOU SURE?
2 OF 5
Geography
Medium
Which desert stretches across northern China and southern Mongolia?
YOU SURE?
3 OF 5
Science
Medium
Which gas law states that for a fixed amount of gas at constant temperature, pressure and volume are inversely related?
YOU SURE?
4 OF 5
Food & Drink
Hard
What mold species, called koji, is used to ferment soybeans for traditional miso and soy sauce?
YOU SURE?
THE TAKE
Transportation
Hard
Which inventor developed the practical four-stroke internal combustion engine in 1876, giving the cycle its name?
YOU SURE?