Riddles With Answers

Which cartoon character is the same type of animal from which the world’s first vaccine was developed?

Porky Pig
Mickey Mouse
Clarabelle Cow
Donald Duck

Fact: In 1796, English physician Edward Jenner made history when gave a young boy what became known as the first vaccine made from the cowpox virus. Six weeks later, when Jenner exposed the boy to the deadly smallpox virus, he did not get sick. And thus, the first vaccine was born, saving millions of lives and immortalizing cows in public health. The word vaccine is actually derived from the Latin word vacca for “cow.” It was a groundbreaking conclusion that set the fields of immunology, vaccine therapy, and preventive health in motion.

Correct Answer: Clarabelle Cow

Which of these rulers came to power when he was just 9 years old?

King Tut
Julius Caesar
Henry VIII
Alexander the Great

Fact: Tutankhamun, often called King Tut, became pharaoh of ancient Egypt at age 9 in 1332 BC. Because he was so young, experienced advisors likely governed on his behalf during the early years of his reign. Although he ruled for only about a decade and accomplished relatively little during his lifetime, Tutankhamun became one of history’s most famous rulers after British archaeologist Howard Carter discovered his nearly intact tomb in 1922. The spectacular treasures found inside made Tut one of the ancient world’s best-known figures.

Correct Answer: King Tut

Which of these numbers has the largest value?

Pi doubled
2 cubed
7
17 divided by 3

Fact: The correct answer is 2 cubed, which equals 8, making it the largest value of the four choices. The other options evaluate to 17 divided by 3 =5.67, 7 = 7, and pi doubled ˜ 6.28. At first glance, the different formats can make it difficult to compare the numbers directly, but converting each expression to its numerical value quickly reveals the answer.

Correct Answer: 2 cubed

Which McDonald’s sandwich is served with just half a slice of American cheese instead of a full slice?

Big Mac
McChicken
Filet-O-Fish
Cheeseburger

Fact: The Filet-O-Fish is the only standard McDonald’s sandwich traditionally made with half a slice of American cheese. The sandwich was introduced in 1962 by Cincinnati franchise owner Lou Groen, who created it to appeal to Catholic customers looking for a meatless option on Fridays during Lent. McDonald’s found that a full slice of cheese overwhelmed the mild flavor of the fish, so the recipe was adjusted to use only half a slice—a practice that has remained part of the sandwich’s iconic and signature preparation for decades.

Correct Answer: Filet-O-Fish

The letters RSVP, commonly printed on invitations, are an abbreviation of a phrase in which language?

French
Latin
German
Dutch

Fact: RSVP stands for the French phrase “Répondez s’il vous plaît,” which translates to “Please respond.” The abbreviation first became popular among the French aristocracy in the 18th century before spreading throughout Europe and the English-speaking world. Today, RSVP remains a standard feature on invitations, asking guests to confirm whether they will attend so the host can plan seating, food, and other event details. Even though the phrase is French, the abbreviation is widely recognized and used internationally.

Correct Answer: French

What is the proper name for the ÷ symbol used in mathematics to indicate division?

Obelus
Pilcrow
Ampersand
Vinculum

Fact: The ÷ symbol is called the obelus, a term that dates back to ancient Greece, where it was originally used as a proofreading mark to indicate questionable or spurious passages in manuscripts. English mathematician Johann Rahn first used the obelus to represent division in his 1659 algebra textbook, and it later became common in elementary mathematics. Today, however, many higher-level mathematics texts prefer the slash (/) or the horizontal fraction bar to represent division, making the obelus far less common in advanced mathematical notation.

Correct Answer: Obelus

Which island lies near giant kelp forests in California?

A. Santa Cruz
B. San Clemente
C. Anacapa

Fact: Anacapa Island, part of Channel Islands National Park, lies near vast giant kelp forests thriving along the California coast.

Correct Answer: Anacapa

What rootlike structures anchor giant kelp to the seafloor?

A. Stolons
B. Holdfasts
C. Rhizoids

Fact: Holdfasts are specialized rootlike structures that secure giant kelp to the ocean floor, preventing them from drifting away.

Correct Answer: Holdfasts

Which animal is noted for twisting through kelp openings?

A. Sea lion
B. Harbor seal
C. Sea otter

Fact: Sea lions are agile swimmers that twist and maneuver through kelp forest openings in search of food and play.

Correct Answer: Sea lion

Which of the following is equal to one century?

Two score years
Four score years
Five score years
Eight score years

Fact: A score is an old-fashioned unit of measurement equal to 20 years. Therefore, five score years equals 100 years, the length of one century. While the term is rarely used today, it remains familiar from Abraham Lincoln’s famous Gettysburg Address, which begins, “Four score and seven years ago,” referring to 87 years before the speech. The word score was once commonly used throughout the English-speaking world to count groups of twenty years or other items, although it has largely disappeared from everyday speech in modern English usage.

Correct Answer: Five score years