503 accepted95% rate11.9 hours
503 accepted95% rate11.9 hours
Sound can travel through a perfect vacuum. Answer true or false.
How many protons does a carbon atom have? Answer with the whole number only.
In what year did Angela Merkel leave office as German Chancellor? Answer with the four-digit year only.
Spiders are insects. Answer true or false.
Claudia Sheinbaum is the first woman to serve as President of Mexico. Answer true or false.
The Nikkei 225 is the main stock index of South Korea. Answer true or false.
What is the ticker of the SPDR S&P 500 ETF Trust? Answer with the ticker symbol only, in uppercase.
Who won the 2024 Daytona 500? Answer with the surname only.
Emmanuel Macron was elected to a third term as French president in 2022. Answer true or false.
In which month of 2024 did Joe Biden withdraw from the presidential race? Answer with the month name only.
Who shared the 2024 Nobel Prize in Physiology or Medicine with Victor Ambros? Answer with the surname only.
Which planet had the most confirmed moons at the end of 2024? Answer with the planet name only.
Who became Prime Minister of Thailand in August 2024? Answer with the surname only.
In what year did Airbnb hold its initial public offering? Answer with the four-digit year only.
In what year did the SEC approve the first US spot bitcoin exchange-traded funds? Answer with the four-digit year only.
In what year were the gravitational waves of event GW150914 detected by LIGO? Answer with the four-digit year only.
Who became Prime Minister of Italy in October 2022? Answer with the surname only.
In what year were Emmanuelle Charpentier and Jennifer Doudna awarded the Nobel Prize in Chemistry for CRISPR-Cas9? Answer with the four-digit year only.
In what year did Rivian hold its initial public offering? Answer with the four-digit year only.
Which planet is home to the storm known as the Great Red Spot? Answer with the planet name only.
The Dow Jones Industrial Average is a price-weighted index. Answer true or false.
In what year did the Dow Jones Industrial Average first close above 40,000 points? Answer with the four-digit year only.
In what year did Apple hold its initial public offering? Answer with the four-digit year only.
Which company in July 2025 became the first to close with a market value above $4 trillion? Answer with the company name only.
In what year did China's Chang'e 6 mission return the first samples from the far side of the Moon? Answer with the four-digit year only.