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100

What was the bloodiest battle of the American Civil War?

Gettysburg

100

During which war was a Christmas truce called?

World War l

100

What does the "E" stand for in Chuck E. Cheese?

Entertainment. Charles Entertainment Cheese.

100

In the human body, what is the hallux?

The big toe, or great toe

100

What is the name of Donald Duck's sister?

Della Duck (sometimes named Dumbella Duck)

200

The United States bought Alaska from which country?

Russia

200

Which country has the most pyramids?

Sudan

200

The Mariana Trench is located in which ocean?

Pacific Ocean

200

Who fought in the Hundred Years' War?

Britain and France

200

What is the name of a word that is spelled the same forwards and backward?

Palindrome

300

The U.S. rover Curiosity landed on which planet in August 2012?

Mars

300

The 'girl in the polka dot dress' was an eyewitness in whose assassination?

Robert F. Kennedy

300

What was the name of the pig leader in George Orwell's Animal Farm?

Napoleon

300

How long is a "jiffy"?

One trillionth of a second. In the late 18th or early 19th centuries, scientist Gilbert Newton Lewis defined a jiffy as the amount of time it takes light to travel one centimeter in a vacuum, about 33.4 picoseconds. That's one trillionth of a second. Quite the jiffy. 

300

What famous author tried to get his wife committed to an insane asylum so he could live with his 18-year-old mistress?

Charles Dickens

400

What is the world's smallest mammal?

Kitti's hog-nosed bat, also known as the bumblebee bat

400

In 1612, who became the first person to observe the planet Neptune?

Galileo

400

What are the four primary lunar phases?

New Moon, First Quarter, Full Moon, and Last Quarter. There are also four secondary phases: Waxing Crescent, Waxing Gibbous, Waning Gibbous, and Waning Crescent.

400

Which planet has moons that are nearly all named after Shakespearean characters?

Uranus. All but two are named after characters from Shakespeare. 

400

How many moons are currently orbiting Jupiter?

80

500

What are a group of hippos referred to as?

A bloat

500

What sea is next to Saudi Arabia?

Red Sea

500

What is the little dot above a lowercase "i" or "j" called?

Tittle

500

Between which two planets does an asteroid belt lie?

Jupiter and Mars. The majority of known asteroids orbit within the asteroid belt between Mars and Jupiter, generally with not very elongated orbits. 

500

Which planet in our solar system has the most gravity?

Jupiter