[Answer] The number 5 is the first digit of all account numbers associated with which major credit card?

Step 1 : Introduction to the question "The number 5 is the first digit of all account numbers associated with which major credit card?"

...Credit card numbers follow a global system called the Major Industry Identifier, where the first digit reveals the network or industry associated with the card. MasterCard numbers always begin with the digit 5, setting them apart from other major networks: Visa cards start with 4, American Express with 34 or 37, and Discover typically with 6. These identifiers help banks, merchants, and payment processors quickly determine the card network and routing system. This numbering system plays a key role in keeping the financial ecosystem organized.

[Answer] The Grateful Dead released a 1972 live double album named after which continent?

Step 1 : Introduction to the question "The Grateful Dead released a 1972 live double album named after which continent?"

...In 1972, the Grateful Dead released Europe ’72, a live double album recorded during their celebrated tour across Western Europe. The album captured performances from cities like London, Paris, and Copenhagen, blending their signature mix of rock, folk, and improvisational jams. Unlike most live records, it also introduced several new songs that would become staples of their catalog, including “Jack Straw” and “Brown-Eyed Women.” With its vibrant performances and iconic “ice cream cone kid” cover art, Europe ’72 remains one of the Grateful Dead’s most celebrated and enduring albums.

[Answer] As a child, which future pop superstar provided the voice of Sally Brown in Peanuts TV specials?

Step 1 : Introduction to the question "As a child, which future pop superstar provided the voice of Sally Brown in Peanuts TV specials?"

...Before achieving fame as the lead singer of the Black Eyed Peas, Fergie — born Stacy Ann Ferguson — lent her voice to the character Sally Brown, Charlie Brown’s younger sister, in several Peanuts animated specials from 1984 to 1986, including It’s Flashbeagle, Charlie Brown and Snoopy’s Getting Married, Charlie Brown. Her early work as a child voice actor was one of her first steps in the entertainment industry, long before she became an international pop sensation with hits like “Fergalicious,” “Big Girls Don’t Cry,” and “Glamorous.”

[Answer] What group started out as Linda Ronstadt's backing band?

Step 1 : Introduction to the question "What group started out as Linda Ronstadt's backing band?"

...In 1971, Linda Ronstadt assembled a group of talented young musicians to back her on tour — including Glenn Frey, Don Henley, Bernie Leadon, and Randy Meisner. The chemistry between them was undeniable, and soon after the tour ended, they decided to form their own band: The Eagles. Blending country, rock, and rich vocal harmonies, they went on to become one of the best-selling and most influential acts in music history, with timeless hits like “Hotel California,” “Take It Easy,” “Desperado,” “Lyin’ Eyes,” and “Life in the Fast Lane.”

[Answer] Who is the only U.S. president born on the West Coast of the United States?

Step 1 : Introduction to the question "Who is the only U.S. president born on the West Coast of the United States?"

...On January 9, 1913, Richard Milhous Nixon was born on his parents' citrus farm in Yorba Linda, California, a location that became notable when, in 1968, he became the first — and to date, only — U.S. president born on the West Coast of the United States. While it may seem surprising that just one president has hailed from the contiguous West Coast states of California, Oregon, and Washington, it reflects the nation’s history: the United States originated on the Eastern Seaboard and expanded westward, with those three Pacific states joining the Union relatively late — in 1850, 1859, and 1889, respectively.