[Answer] What government organization did Abraham Lincoln establish just hours before his death?

Step 1 : Introduction to the question "What government organization did Abraham Lincoln establish just hours before his death?"

...On April 14, 1865, the very day he was assassinated, Abraham Lincoln signed the legislation that created the United States Secret Service. The timing, however, is less ironic than it appears. The agency’s original purpose was not to protect the President, but to combat widespread counterfeiting, which had become a serious threat to the U.S. economy in the aftermath of the Civil War. At the time, an estimated one-third of all U.S. currency in circulation was counterfeit, undermining both financial stability and public confidence.

[Answer] Which of the following cities has the largest population?

Step 1 : Introduction to the question "Which of the following cities has the largest population?"

...Mexico City is the most populous city on this list, with more than 9 million residents living within its official city boundaries. While cities like New York City and Los Angeles are often thought of as larger due to their massive metropolitan areas, their city-proper populations are smaller—New York City has about 8.5 million residents, and Los Angeles around 4 million. Rio de Janeiro also falls below Mexico City’s total, with a population of roughly 6.7 million, placing it well behind when comparing city limits alone.

[Answer] Cousin Oliver was a late addition to which family sitcom?

Step 1 : Introduction to the question "Cousin Oliver was a late addition to which family sitcom?"

...Cousin Oliver was introduced during the final season of The Brady Bunch as a last-ditch effort to inject new energy into the series after ratings began to slip and the original child cast grew older. Played by Robbie Rist, the character was meant to recreate the show’s early charm but instead became an example of an ill-received late addition. His legacy lives on through the phrase “Cousin Oliver Syndrome,” now used to describe sitcoms that awkwardly add a young child character in hopes of extending their run—often with the opposite effect.

[Answer] Anne Frank wrote her famous diary entries in the form of letters addressed to which name?

Step 1 : Introduction to the question "Anne Frank wrote her famous diary entries in the form of letters addressed to which name?"

...In 1942, Anne Frank, a young Jewish girl living in Amsterdam, received a diary as a gift from her parents on her 13th birthday. A month later, she and her family went into hiding from the Nazis in rooms behind her father’s office. While hiding, Anne decided to think of her diary as a friend, whom she named Kitty. Frank's diary entries often started with a salutation, usually addressed to "Kitty." So who was Kitty? Some say Kitty was an imaginary friend, while other scholars believe that Anne borrowed the name from her favorite book series, Joop ter Heul, in which the title character’s best friend was named Kitty Francken.

[Answer] Which Beatles song is about John Lennon’s mother?

Step 1 : Introduction to the question "Which Beatles song is about John Lennon’s mother?"

...John Lennon wrote the song "Julia" as a tribute to his mother, Julia Lennon, who was tragically killed by a drunk driver when Lennon was just 17 years old. Featured on The White Album, the track is a gentle, intimate acoustic piece performed by Lennon alone, blending personal grief with poetic, dreamlike imagery. The lyrics reference both his childhood memories and his relationship with Yoko Ono, weaving past and present together. The song stands as one of the Beatles’ most emotionally raw recordings, offering a rare glimpse into Lennon’s private inner life.