1. African elephant
   Asian elephant
2. Giraffe
   Rhinoceros

The African elephant is the largest living animal on Earth. There are two sub-species of African elephant: the Savanna elephant and the Forest elephant. Savanna elephants are the larger of the two and make up two-thirds of the African elephant population.

1. Japan
   China
2. Greece
   Brazil

Tokyo will be hosting the Summer Olympics for the second time. They first hosted the Olympic Games in 1964. Tokyo was chosen over Istanbul and Madrid in two rounds of voting in the 125th IOC session in Brazil.

1. Roger Federer
   Andy Murray
2. Novak Djokovic
   Rafael Nadal

Roger Federer has won 20 Grand Slam singles titles. He has won eight Wimbledon titles (a men's record), six Australian Open titles, five U.S. Open titles (another record), and one French Open title.

1. 1969
   1968
2. 1970
   1967

On the evening of July 16, 1969, Apollo 11 astronauts Neil Armstrong and Buzz Aldrin landed on the moon. It was a little more than eight years after President Kennedy's challenge to put a man on the moon before the end of the decade. Astronaut Michael Collins, who was also on the Apollo 11 crew, stayed on the Command Module orbiting the moon while Armstrong and Aldrin explored the lunar surface.

1. AB-negative
   O-negative
2. AB-positive
   O-positive

A human red blood cell contains antigens on the surface of each cell. These antigens determine what blood type a person has. The eight basic types are determined by the combinations of A, B, and Rh antigens. The least common combination leads to the AB- blood type. Only 0.6 percent of the population has this type. The most common (37.4 percent of the population) is O-positive.

1. A Fungus
   An Aspen Grove
2. The Blue Whale
   Coral

The world's largest living thing is Armillaria ostoyae, or, as it's nicknamed, the Humongous Fungus. It covers 2,385 acres of the Malheur National Forest in Oregon. The fungus has a huge network of roots that spread underground.

1. Jupiter
   Saturn
2. Uranus
   Neptune

Jupiter has a total of 64 confirmed moons. These moons include four large spherical moons, four small spherical moons, and 55 irregular satellites. Saturn has the second-highest number of moons, with 61.

1. Ludwig Van Beethoven
   Wolfgang Mozart
2. Frederic Chopin
   Johann Sebastian Bach

Beethoven was a pianist and composer during the transitional period between the Classical and Romantic eras. His personal life was marked by a struggle with deafness, but that didn't stop him from composing. His most important works were written in the last 10 years of his life when he was almost completely deaf.

1. Three
   Two
2. One
   Four

An octopus has three hearts. One heart is used to circulate blood throughout its body. It has an additional two hearts to pump blood to the gills. An octopus also has nine brains and blue blood.

1. Harry S. Truman
   Gerald Ford
2. Ronald Reagan
   Woodrow Wilson

The U.S. Constitution does not set forth any educational requirements for the president. As time has gone on though, presidents have become increasingly more educated. Not only do modern presidents have college degrees, but they've earned degrees from Ivy league schools. Harry S. Truman was the last president who did not have a degree.

1. Sophie Blanchard
   Amelia Earhart
2. Bessie Coleman
   Blanche Scott

Sophie Blanchard began piloting balloons in 1783. She experienced many mishaps on multiple flights, but she always found a way out. However, in 1819, she took off in a balloon and found that it was leaking. The balloon caught fire, and fell rapidly to the ground. She was the first female aviation casualty.

1. Antarctica
   Africa
2. Australia
   North America

A desert is classified by a number of characteristics, the most important being the amount of precipitation received. By this definition, Antarctica, as a whole, is the largest desert in the world. The continent receives less than 200 mm of precipitation every year. The next three largest deserts are the Arctic, the Saharan, and the Arabian.

1. Hawaii
   Texas
2. Florida
   California

The southern most U.S. state is Hawaii, at 18 degrees and 55 minutes north. Florida comes in second, marked by a buoy in Key West, at 24 degrees and 32 minutes north.

1. Coca-Cola
   Pepsi
2. Dr. Pepper
   Fanta

In 1985, astronauts tested the "Coca-Cola Space Can" on board the space shuttle Challenger. More than years later, in 1996, a fountain dispenser -- serving Coke, diet Coke and sports drink Powerade -- was launched aboard the space shuttle Endeavour.

1. Judge Judy
   Ryan Seacrest
2. Ellen Degeneres
   Dr. Phil

The courtroom drama, involving real cases, first came on the air in 1996. In 2018, Judge Judy Sheindlin made $147 million.

1. Between 600 and 800
   100
2. 10,000
   50

It takes between 600 and 800 grapes to make a single bottle of wine. Depending on the variety of grape, this is equivalent to anywhere between three and 10 clusters.

1. 5.5 cents
   25 cents
2. 1.5 cents
   3 cents

According to the Federal Reserve, it costs the U.S. Government about 5.5 cents to make a single $1 bill. Each bill lasts about six years. The most expensive bill to make is the $100 bill since there are additional counterfeit protections required.

1. Damascus, Syria
   Athens, Greece
2. Rome, Italy
   Istanbul, Turkey

There is evidence of habitation in Damascus dating back at least 11,000 years. Its location has kept it in the spotlight throughout many civilizations. It is currently home to 2.5 million people.

1. The Essex
   The Titanic
2. The HMS Beagle
   The Santa Maria

The Essex was a whaling ship that set off from Nantucket in 1819. It was captained by George Pollard Jr. The Essex had been plagued by mini-disasters leading up to its famous bout with a sperm whale, which sunk the ship off the western coast of South America.

1. Fortnite
   Call of Duty
2. Minecraft
   Assassin's Creed

With more than 125 million registered Fortnite players worldwide, it's no wonder it's the cause of some marital strife. At least 200 couples in the United Kingdom alone have cited Fortnite as one of the reasons for their divorce. The World Health Organization notet an "increasing priority given to gaming over other activities to the extent that gaming takes precedence over other interests and daily activities, and continuation or escalation of gaming despite the occurrence of negative consequences."

1. Mandarin Chinese
   English
2. Spanish
   Arabic

The number of native Mandarin speakers is roughly 1.2 billion. That means that one in six people speak Chinese. But once you include everyone who speaks the language, not just the native speakers, then English narrowly edges out Chinese for the top spot.

1. Ferret
   Sheep
2. Mouse
   Dog

Dolly, the sheep, was the first successfully cloned mammal. Originally code-named 6LL3, the sheep was eventually renamed after the famous singer, Dolly Parton. Dolly was born in 1997. Over the course of her life, she even gave birth to four lambs.

1. The Elizabeth Tower
   The Charles Tower
2. The Buckingham Tower
   The Edmonton Tower

Big Ben is actually the nickname for the bell inside the clock tower, not the entire tower. It's a fitting name, since the bell stands at over 7 feet tall and weighs 13.5 tons. However, the tower's official name is the Elizabeth Tower.

1. Denmark
   Tanzania
2. Great Brittain
   China

The flag of Denmark holds the Guinness world record of the oldest continuously used national flag. Also known as the Dannebrog, it features a red background with a white Scandinavian Cross.

1. Angel Falls
   Victoria Falls
2. Niagra Falls
   Tugela Falls

Angel Falls, known as Salto Angel in Venezuela, is the highest waterfall in the world. It The falls are 3,230 feet in height. They are located on a tributary of the Rio Caroni.

1. Motorola
   Samsung
2. Apple
   Nokia

Motorola executive Martin Cooper placed the first cellphone call on April 3, 1973. This call was made to Motorola's biggest rival, Bell Labs.

1. "Gone with the Wind"
   "The Godfather"
2. "Forrest Gump"
   "Jaws"

"Gone with the Wind" took in $393.4 million in its 1939 release. However, once adjusted for inflation, the film's gross totals to $3.44 billion. It was a movie that made Clark Gable and Vivien Leigh household names for generations to come.

1. Venus
   Saturn
2. Earth
   Mercury

All of the planets in our solar system, with the exception of Venus and possibly Uranus, rotate counter-clockwise. Uranus is tilted on its side about 90 degrees, so even its rotation is ambiguous.

1. Miroslav Klose
   Cristiano Ronaldo
2. Eden Hazard
   Pele

Miroslav Klose was born in Poland but is now a German citizen. He last played for the Italian club, Lazio, as well as for the German national team. He has scored 16 goals across four FIFA World Cups. Cristiano Ronaldo is a close second, with a total of 15 goals.

1. One
   Two
2. Three
   Four

Four U.S. presidents have been assassinated while in office. They are Abraham Lincoln, James Garfield, William McKinley, and John F. Kennedy. All four were killed by gunshots.

1. Blessing
   Flink
2. Crash
   Flock

While it may seem like a useless word, "blessing" is the official term for a group of mythical unicorns. Unicorns have become increasingly popular in modern culture, so it only seems fitting to also coin a group name for the creatures.

1. Zone Improvement Plan
   Zone Index Pathway
2. Zoning Impact Partition
   It doesn't stand for anything.

ZIP is an acronym for "Zone Improvement Plan." The U.S. Postal Service intentionally chose an acronym that implied mail would travel faster when a package included the zip code. The system was first implemented in 1963.

1. 300
   206
2. 150
   220

A baby is born with 300 bones. This new skeleton contains many bones made almost entirely of cartilage. These cartilaginous bones eventually fuse together, leaving an adult with 206 bones.

1. Amazon
   Nile
2. Congo
   Yangtze

Measured from its mouth to the most distant area, the Amazon River measures 4,345 miles. It runs from the Peruvian Andies, through Brazil, and into the Atlantic Ocean. There is some controversy surrounding this number and it was only granted the title of "Longest River" in 2007.

1. Pablo Picasso
   Henry Matisse
2. Juan Gris
   Giorgio de Chirico

Pablo Picasso had moved to Paris about a decade before the theft. Joseph Géry Pieret, a famous art thief, claimed he had stolen art from the Louvre and gave it to his friends. Picasso had indeed purchased stolen art from Pieret, but not the Mona Lisa. He would later be cleared when Vincenzo Peruggia was found guilty of stealing the famous painting.