US Daily Quiz — 25 April 2026

In the news recently...

China announced it will send two giant pandas to which US city's zoo?
💡 Atlanta
South Korean police are seeking to arrest Bang Si-Hyuk, the music mogul and chairman of the agency behind which massively popular K-pop supergroup?
💡 BTS
Which prediction market platform fined and suspended three congressional candidates for betting on their own elections?
💡 Kalshi

Mixed bag

Whether it's keeping your sneakers from sliding on a gym floor or letting brakes slow a speeding car, what is the name of the force that resists motion between two surfaces in contact?
💡 Friction
Which amendment to the U.S. Constitution protects citizens from unreasonable searches and seizures and requires that warrants be supported by probable cause?
💡 4th Amendment
Named after the economist who discovered it while studying postwar U.S. trade data, what paradox describes the puzzling finding that the United States — a capital-rich nation — appeared to export labor-intensive goods and import capital-intensive ones, seemingly contradicting the predictions of standard trade theory?
💡 Leontief paradox

On this date (25 April)

April 25 is observed as ANZAC Day, a national day of remembrance in Australia and New Zealand. The day commemorates the anniversary of the 1915 landing of ANZAC troops during World War I on which peninsula in modern-day Turkey?
💡 Gallipoli
On April 25, 1974, a military coup in Portugal overthrew the Estado Novo authoritarian regime. What was the popular name given to this largely peaceful revolution, named after the flowers that soldiers placed in their rifle barrels?
💡 Carnation Revolution
On April 25, 1507, a German cartographer published a world map that was the first to use the name America, derived from the explorer Amerigo Vespucci. What is the name of this cartographer?
💡 Martin Waldseemuller