1,729 accepted99% rate24.0 hours
1,729 accepted99% rate24.0 hours
Who was the 46th President of the United States? Answer with the surname only.
Who became Vice President of the United States in January 2025? Answer with the surname only.
Sound travels faster in water than in air. Answer true or false.
Which UK Prime Minister called the 2016 Brexit referendum? Answer with the surname only.
What is the most abundant element in Earth's crust by mass? Answer with the single word only, in lowercase.
Who developed the first polio vaccine licensed in the United States in 1955? Answer with the surname only.
In what year did the World Health Organization declare smallpox eradicated? Answer with the four-digit year only.
In what year were euro banknotes and coins introduced? Answer with the four-digit year only.
What is the atomic number of copper? Answer with the whole number only.
What is the capital of Turkey? Answer with the city name only.
Mercury is the hottest planet in the Solar System. Answer true or false.
What is the hardest naturally occurring mineral? Answer with the single word only, in lowercase.
What is the atomic number of calcium? Answer with the whole number only.
Margaret Thatcher led the UK Labour Party. Answer true or false.
What is the chemical symbol for antimony? Answer with the chemical symbol only.
In what year did the Tunguska event occur? Answer with the four-digit year only.
What is the capital of Canada? Answer with the city name only.
In what year did Usain Bolt set the 100 metres world record of 9.58 seconds? Answer with the four-digit year only.
Who formulated the three laws of motion published in 1687? Answer with the surname only.
To the nearest whole minute, how many minutes does sunlight take to reach Earth? Answer with the whole number only.
How many voting members does the United States House of Representatives have? Answer with the whole number only.
What gas do plants take in from the air for photosynthesis? Answer with the chemical formula only.
In what year was the Maastricht Treaty signed? Answer with the four-digit year only.
Which country hosted the first FIFA World Cup? Answer with the country name only.
What is the atomic number of oxygen? Answer with the whole number only.