Sound can travel through a perfect vacuum. Answer true or false.
Which chemical element is the most abundant in the universe by mass? Answer with the single word only, in lowercase.
In which country is the BSE Sensex stock index based? Answer with the country name only.
Spiders are insects. Answer true or false.
How many companies has Germany's DAX index contained since September 2021? Answer with the whole number only.
Which NBA team won the 2023 NBA Finals? Answer with the team nickname only, such as Lakers.
In what year did the S&P 500 first close above 5,000 points? Answer with the four-digit year only.
Who won the 2025 Indianapolis 500? Answer with the surname only.
Copper is a good conductor of electricity. Answer true or false.
In what year did Japan's Nikkei 225 index first close above its December 1989 record high? Answer with the four-digit year only.
Mars has three natural moons. Answer true or false.
Ostriches cannot fly. Answer true or false.
In what year did Airbnb hold its initial public offering? Answer with the four-digit year only.
The S&P 500 finished calendar year 2022 down more than 15 percent. Answer true or false.
Who has been the chief executive of Nvidia since its founding? Answer with the surname only.
In which month of 2024 did Iranian president Ebrahim Raisi die in a helicopter crash? Answer with the month name only.
In what year did Lehman Brothers file for bankruptcy? Answer with the four-digit year only.
Who was sworn in as US Secretary of State in January 2025? Answer with the surname only.
Mitochondria contain their own DNA. Answer true or false.
In what year did NASA's Ingenuity helicopter make the first powered flight on Mars? Answer with the four-digit year only.
