[Answer] Which invention was named after a medieval king?

Step 1 : Introduction to the question "Which invention was named after a medieval king?"

...The name "Bluetooth," which refers to the standard for shortrange wireless connections, is derived from Viking King Harald Gormsson, who is credited with uniting Scandinavia. Like many medieval rulers, he also had a nickname: blátonn in Old Norse. It translates to Bluetooth. Scholars believe that his nickname originated from a distinctive dead tooth that appeared blue. The now iconic Bluetooth logo is actually a combination of King Harald's initials, written in Scandinavian. Intel mobile engineer Jim Kardac came up with the name in 1997 after reading a book about Vikings.

[Answer] What rock group had a Billboard Top 10 hit in 1981 with the song "De Do Do Do, De Da Da Da"?

Step 1 : Introduction to the question "What rock group had a Billboard Top 10 hit in 1981 with the song "De Do Do Do, De Da Da Da"?"

...In 1981, The Police scored a Billboard Top 10 hit with their song "De Do Do Do, De Da Da Da," a standout track from their third studio album, Zenyatta Mondatta. The song was written by Sting as a comment on how people love simple-sounding catchy songs. Despite its playful and seemingly nonsensical lyrics, the song struck a chord with listeners. The phrase "De Do Do Do, De Da Da Da" reportedly was made up by Sting's son. Sting said of this, "In fact, my son came up with it. I've never paid him – so that's another possible lawsuit.

[Answer] Which director is known for making cameo appearances in nearly all of his movies?

Step 1 : Introduction to the question "Which director is known for making cameo appearances in nearly all of his movies?"

...Alfred Hitchcock is not only famous for his groundbreaking contributions to the thriller and suspense genres but also for his tradition of making cameo appearances in his films. This playful habit became one of his trademarks, starting early in his career and continuing through to his later masterpieces. In each of his movies, Hitchcock would subtly insert himself in small, often humorous, non-speaking roles. Sometimes he appeared as a passerby, a bus rider, or a newspaper reader. These cameos became a source of amusement for his fans, who would eagerly anticipate spotting him on screen.

[Answer] Before his film career, which actor called Major League Baseball games as a radio sportscaster?

Step 1 : Introduction to the question "Before his film career, which actor called Major League Baseball games as a radio sportscaster?"

...Before transitioning to a successful film career, Ronald Reagan worked as a radio sportscaster, where he called Major League Baseball games. In the 1930s, Reagan was a sportscaster for several radio stations in Iowa, most notably WHO in Des Moines, where he recreated Chicago Cubs games based on telegraph reports. These broadcasts involved adding flair and commentary, which helped him develop his smooth, confident speaking style. His broadcasting work led him to Hollywood, where he became a major film star before later entering politics and serving as the 40th president of the United States.

[Answer] In the name of the A&P supermarket chain, the "A" and "P" stand for the names of two what?

Step 1 : Introduction to the question "In the name of the A&P supermarket chain, the "A" and "P" stand for the names of two what?"

...In the name of the A&P supermarket chain, the letters "A" and "P" stand for "Atlantic" and "Pacific." These names originally referred to the two oceans, representing the company's goal of creating a national brand that spanned the entire country, from coast to coast. The Great Atlantic & Pacific Tea Company, founded in 1859, started as a tea importer before expanding into a grocery empire. From 1915 through 1975, A&P was the largest grocery retailer in the United States, and until 1965, it was the nations largest retailer across all sectors.