[Ans] What is the world's best-selling musical instrument?

Step 1 : Introduction to the question "What is the world's best-selling musical instrument?"

The harmonica is the world’s best-selling musical instrument. Harmonicas originated in the early 1800s in Europe. They gained popularity in the 1920s in the U.S. and were used in blues recordings. Christian Friedrich Ludwig Buschmann is often cited as the inventor of the harmonica in 1821, but other inventors developed similar instruments at the same time. Clock maker Matthias Hohner began crafting harmonicas in 1857 and soon owned the largest harmonica factory in the world. By 1986 the harmonica maker Hohner had produced 1 billion harmonicas.

[Answer] What is the world's best-selling musical instrument?

Step 1 : Introduction to the question "What is the world's best-selling musical instrument?"

...The harmonica is the world’s best-selling musical instrument. Harmonicas originated in the early 1800s in Europe. They gained popularity in the 1920s in the U.S. and were used in blues recordings. Christian Friedrich Ludwig Buschmann is often cited as the inventor of the harmonica in 1821, but other inventors developed similar instruments at the same time. Clock maker Matthias Hohner began crafting harmonicas in 1857 and soon owned the largest harmonica factory in the world. By 1986 the harmonica maker Hohner had produced 1 billion harmonicas.

[Ans] Who appeared on the best-selling commemorative postage stamp in U.S. history?

Step 1 : Introduction to the question "Who appeared on the best-selling commemorative postage stamp in U.S. history?"

Elvis Presley postage stamps are the most widely publicized stamp issued in the history of the United States Postal Service and it is the top selling commemorative postage stamp of all time. The Elvis postage stamps were released by the U.S. Postal Service on January 8, 1993. The USPS printed 500 million of them, three times the usual print run for a commemorative stamp. About 124.1 million of the 1993 Elvis Presley stamps were saved by Americans, according to the post office, which does an annual survey of 10,000 households to determine which stamps are most popular.

[Answer] Who appeared on the best-selling commemorative postage stamp in U.S. history?

Step 1 : Introduction to the question "Who appeared on the best-selling commemorative postage stamp in U.S. history?"

...Elvis postage stamps are the most widely publicized stamp issued in the history of the U.S. Postal Service and it is the top selling commemorative postage stamp of all time. Elvis postage stamps were released by the U.S. Postal Service on January 8, 1993. The USPS printed 500 million of them, three times the usual print run for a commemorative stamp. About 124.1 million of the 1993 Elvis Presley stamps were saved by Americans, according to the post office, which does an annual survey of 10,000 households to determine which stamps are most popular.

[Answer] Which is the best-selling comic book of all time?

Step 1 : Introduction to the question "Which is the best-selling comic book of all time?"

...Marvel published its comic book "X-Men Vol. 2, #1" during the peak of the comics boom of the early 1990s. The X-men series was already a major selling collection in the North American comic book market. Marvel took a gamble at the time and developed a marketing and release scheme designed to make the release of the issue into a month-long event. It did this by staggering shipments of the comic across multiple weeks, with each shipment set having a different-colored cover on that week's version. This set off a "different covers" craze that continues, although to a lesser degree, to this day. Source: ComiChron.com

[Ans] Which car ranks as the world's best-selling automobile of all time?

Step 1 : Introduction to the question "Which car ranks as the world's best-selling automobile of all time?"

The original best-selling automobile was Henry Ford's Model T. This car revolutionized the automotive industry worldwide and transformed American society. It provided reliable, affordable transportation for the masses. In February 1972, the Volkswagen Beetle broke the world car production record when the 15,007,034th VW Beetle rolled off the assembly line. This iconic car replaced the Model T as the world's best-selling car, a spot the Ford Motor Company's car held for more than four decades. Source: History.com

[Answer] Which car ranks as the world's best-selling automobile of all time?

Step 1 : Introduction to the question "Which car ranks as the world's best-selling automobile of all time?"

...The original best-selling automobile was Henry Ford's Model T. This car revolutionized the automotive industry worldwide and transformed American society. It provided reliable, affordable transportation for the masses. In February 1972, the Volkswagen Beetle broke the world car production record when the 15,007,034th VW Beetle rolled off the assembly line. This iconic car replaced the Model T as the world's best-selling car, a spot the Ford Motor Company's car held for more than four decades. Source: History.com

[Ans] Which football icon lends his name to one of the best-selling video game franchises in history?

Step 1 : Introduction to the question "Which football icon lends his name to one of the best-selling video game franchises in history?"

... The Mario franchise has expanded into other game genres, including racing, sports, party, puzzle, and role-playing games. The franchise includes other media, including three animated television series, comic books, a manga, a film and other merchandise. It is currently the best-selling ... Missing: icon ‎lends 

 FIFA, also known as FIFA Football or FIFA Soccer, is a series of association football video games or football simulator, released annually by Electronic Arts under the EA Sports label. Football video games such as Sensible Soccer, Kick Off and Match Day had been developed since the late 1980s and already competitive in ...