[Answer] Who is the only First Lady to ever be featured on U.S. paper currency?

Step 1 : Introduction to the question "Who is the only First Lady to ever be featured on U.S. paper currency?"

...Martha Washington is the only First Lady ever to appear on U.S. paper currency. Her portrait was first featured on the $1 Silver Certificate in 1886 and 1891, making her the first—and so far, only—woman to be depicted on a federally issued banknote. In 1896, she was again featured on the $1 Silver Certificate, this time alongside her husband, George Washington, on the back of the note. These Silver Certificates, which were backed by the government’s silver reserves, were gradually phased out over time, with the last series issued in 1957.

[Answer] According to legend, which animal did Saint Patrick banish from Ireland?

Step 1 : Introduction to the question "According to legend, which animal did Saint Patrick banish from Ireland?"

...Saint Patrick is recognized as the patron saint of Ireland and one of the most successful Christian missionaries in history. According to legend, Saint Patrick rid Ireland of its snake population in the 5th century AD when he was on a mission to convert the country’s people from paganism to Christianity. It is said that the Christian missionary chased the snakes into the Irish Sea after they started attacking him during a 40-day fast he undertook on top of a hill. Scholars believe the snake story is an allegory for St. Patrick’s eradication of pagan ideology.

[Answer] Who won the Nobel Peace Prize for helping end the Cold War?

Step 1 : Introduction to the question "Who won the Nobel Peace Prize for helping end the Cold War?"

...Although U.S. President Ronald Reagan called for the fall of the Berlin Wall in his famous 1987 speech, it was Soviet leader Mikhail Gorbachev who got the job done in 1989, and earned a Nobel Peace Prize for it the following year. As the last leader of the Soviet Union, Gorbachev introduced reforms such as glasnost (openness) and perestroika (restructuring), which contributed to the easing of tensions between the USSR and the West. His policies led to the fall of the Berlin Wall, the reduction of nuclear weapons, and the dissolution of the Soviet Union in 1991.

[Answer] Which famous actor was also a championship-winning race car driver?

Step 1 : Introduction to the question "Which famous actor was also a championship-winning race car driver?"

...Paul Newman was not only a legendary actor but also a highly skilled race car driver with an impressive legacy on the track. His passion for racing began in the late 1960s while filming Winning, a movie about the Indianapolis 500. Newman began competing in various professional racing events, winning multiple championships. In 1979, he finished second in his class at the 24 Hours of Le Mans, one of the world's most prestigious endurance races. At the age of 70, Paul Newman made motorsports history by becoming the oldest driver to win a professional event.

[Answer] Which singer's rendition of the national anthem became a Top 10 hit?

Step 1 : Introduction to the question "Which singer's rendition of the national anthem became a Top 10 hit?"

...Whitney Houston's powerful rendition of "The Star-Spangled Banner" became a huge hit after she performed it at Super Bowl XXV in 1991. Her emotional and technically flawless performance resonated deeply with Americans, especially as the nation was involved in the Gulf War at the time. Due to overwhelming demand, the live recording was released as a single, reaching No. 20 on the Billboard Hot 100. Following the September 11 attacks in 2001, the song was re-released, this time climbing to No. 6 on the chart. Houston's version remains one of the most iconic performances of the national anthem in history.