Science
History
Riddles
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free for all
100

Animals that eat both plants and meat are called what?

Omnivores

100

Name one of the two astronauts to walk on the moon in July of 1969.

Neil Armstrong or Buzz Aldrin

100

What has a neck but no head?

A bottle

100

 x + 1 = 9 

X=8

100

What is the official national anthem of the United States of America

The Star Spangled Banner

200

What does ‘E’ represent in E=MC2?

Energy

200

Before the Battle of Lexington and Concord, who took a midnight run to warn the militia of the approaching British forces?

Paul Revere

200

The more you take, the more you leave behind. What am I?

Footsteps

200

-3 + 2x = 11 

X=7

200

What was Twitter’s original name?

twttr

300

What inorganic molecule is produced by lightning?

Ozone

300

Who was the explorer who left Puerto Rico, seeking the coast of Florida, while looking for the Fountain of Youth?

Ponce de Leon

300

How do you spell COW in thirteen letters?

SEE O DOUBLE YOU

300

4x + 6 = -10

X=-4

300

What is celebrated on February 2 and is also a film?

Groundhog Day

400

What type of bond involves the sharing of electron pairs between different atoms?

Covalent

400

What was the name of the first English settlement in the New World that failed miserably?

Roanoke

400

If 2 is company and 3 is a crowd, what are 4 and 5?

9

400

x + 9 = 18 - 2x 

X=3

400

How many stars are on the European Union Flag?

12

500

Around what percentage of animal species are invertebrates?

95%

500

During the American Civil War, President Lincoln issued this, changing the legal status of 3.5 million people from enslaved to free people.

Emancipation Proclamation

500

Forward, I am heavy; backward, I am not. What am I?

Ton

500

-x - 1 = 221 + 2x 

X=-74

500

Which animal can be seen on the Porsche logo?

Horse

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