No Adult Has Been Able to Pass This Elementary-Level Quiz

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Believe it or not, olives are actually classified as a fruit. Botanically, olive fruits are drupes, like peaches or plums.

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Believe it or not, olives are actually classified as a fruit. Botanically, olive fruits are drupes, like peaches or plums.

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The color purple is made by mixing the primary colors red and blue. Primary colors are the only colors that cannot be mixed from other colors; they are the source of all other colors. Purple, a secondary color, is mixed from two primary colors that are adjacent to one another on the color wheel.

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The color purple is made by mixing the primary colors red and blue. Primary colors are the only colors that cannot be mixed from other colors; they are the source of all other colors. Purple, a secondary color, is mixed from two primary colors that are adjacent to one another on the color wheel.

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The square root of 144 is 12. The number 144 is the number 12 multiplied by itself.

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The square root of 144 is 12. The number 144 is the number 12 multiplied by itself.

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Although dolphins appear to be fish, they are actually mammals. Dolphins are warm-blooded and breathe through lungs instead of gills. They also give birth to their young instead of hatching them from eggs.

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Although dolphins appear to be fish, they are actually mammals. Dolphins are warm-blooded and breathe through lungs instead of gills. They also give birth to their young instead of hatching them from eggs.

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The Great Wall of China is the name of a wall built across the historical northern borders of China. It spans 13,171 miles and stands anywhere from 6 to 14 meters.

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The Great Wall of China is the name of a wall built across the historical northern borders of China. It spans 13,171 miles and stands anywhere from 6 to 14 meters.

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Mount Rushmore National Memorial is a 60-foot-high granite sculpture depicting the faces of U.S. presidents George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln. The monument is carved into Mount Rushmore, located in the Black Hills region of South Dakota.

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Mount Rushmore National Memorial is a 60-foot-high granite sculpture depicting the faces of U.S. presidents George Washington, Thomas Jefferson, Theodore Roosevelt, and Abraham Lincoln. The monument is carved into Mount Rushmore, located in the Black Hills region of South Dakota.

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In the above sentence, "walked" is a verb because it is describing an action.

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In the above sentence, "walked" is a verb because it is describing an action.

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Jupiter is a gas giant with a mass one-thousandth the size of the size, but it is two-and-a-half times larger than the other planets in the solar system.

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Jupiter is a gas giant with a mass one-thousandth the size of the size, but it is two-and-a-half times larger than the other planets in the solar system.

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The Pacific Ocean is the largest and deepest ocean on Earth. It extends from the Arctic region in the north to the Southern Ocean.

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The Pacific Ocean is the largest and deepest ocean on Earth. It extends from the Arctic region in the north to the Southern Ocean.

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The echidna and the platypus are the only two mammals to lay eggs. Echidnas are native to Australia, Tasmania, and New Guinea; they are sometimes referred to as spiny anteaters.

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The echidna and the platypus are the only two mammals to lay eggs. Echidnas are native to Australia, Tasmania, and New Guinea; they are sometimes referred to as spiny anteaters.

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The product of any number multiplied by 0 is zero.

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The product of any number multiplied by 0 is zero.

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To improve is to make or become better. The opposite of "improve" is "worsen"—to make or become worse.

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To improve is to make or become better. The opposite of "improve" is "worsen"—to make or become worse.

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Bangkok is the capital and most populous city of Thailand. It is known for its vibrant street life and elaborate shrines.

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Bangkok is the capital and most populous city of Thailand. It is known for its vibrant street life and elaborate shrines.

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Berries have three layers: the outer skin, fleshy middle, and innermost endocarp, which contains the seeds. Berries must also contain at least two seeds. By this definition, watermelon is technically a berry—as well as cranberries, eggplants, peppers, and kiwis.

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Berries have three layers: the outer skin, fleshy middle, and innermost endocarp, which contains the seeds. Berries must also contain at least two seeds. By this definition, watermelon is technically a berry—as well as cranberries, eggplants, peppers, and kiwis.

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Squirrels mainly eat seeds, nuts, fungi, and fruits—but they'll also snack on eggs, small insects, caterpillars, small animals, and even young snakes.

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Squirrels mainly eat seeds, nuts, fungi, and fruits—but they'll also snack on eggs, small insects, caterpillars, small animals, and even young snakes.

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The acronym ROYGBIV, or Roy G. Biv, accurately describes the order of hues that make up a rainbow.

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The acronym ROYGBIV, or Roy G. Biv, accurately describes the order of hues that make up a rainbow.

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A peninsula is a piece of land surrounded by water on the majority of its perimeter while remaining connected to a mainland.

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A peninsula is a piece of land surrounded by water on the majority of its perimeter while remaining connected to a mainland.

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Tepid, when referring to a liquid, means "only slightly warm," or lukewarm. It can also mean "showing little enthusiasm."

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Tepid, when referring to a liquid, means "only slightly warm," or lukewarm. It can also mean "showing little enthusiasm."

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Mexico is located in the Northern Hemisphere toward the southern part of North America. South America is mostly located in the Southern hemisphere.

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Mexico is located in the Northern Hemisphere toward the southern part of North America. South America is mostly located in the Southern hemisphere.

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In the above sentence, the word "red" describes an attribute related to a noun, making it an adjective.

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In the above sentence, the word "red" describes an attribute related to a noun, making it an adjective.

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Pluto is the ninth planet from the sun. It is an icy dwarf planet without rings.

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Pluto is the ninth planet from the sun. It is an icy dwarf planet without rings.

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Rice is the most commonly consumed food in the world. Uncooked, rice is high in starch, but after cooking, the starch content declines significantly.

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Rice is the most commonly consumed food in the world. Uncooked, rice is high in starch, but after cooking, the starch content declines significantly.

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The ampersand (&) is the logogram that represents the conjunction "and."

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The ampersand (&) is the logogram that represents the conjunction "and."

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Capybaras are gigantic cavy rodents native to South America. They are the larget living type of rodent in the world.

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Capybaras are gigantic cavy rodents native to South America. They are the larget living type of rodent in the world.

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The Nile River is the longest river in the world. It is a major north-flowing river in northeastern Africa.

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The Nile River is the longest river in the world. It is a major north-flowing river in northeastern Africa.

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The number 213 is less than 3495, meaning that the "less than" symbol was missing from this equation.

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The number 213 is less than 3495, meaning that the "less than" symbol was missing from this equation.

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The equator is the imaginary line drawn around the earth equidistant from both the North and South Poles, which divides the earth into the Northern and Southern Hemispheres.

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The equator is the imaginary line drawn around the earth equidistant from both the North and South Poles, which divides the earth into the Northern and Southern Hemispheres.

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The word "obsolete" means "no longer used or produced; out of date." Therefore, the opposite of obsolete is "contemporary,"  which is defined as "belonging to occurring in the present."

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The word "obsolete" means "no longer used or produced; out of date." Therefore, the opposite of obsolete is "contemporary,"  which is defined as "belonging to occurring in the present."

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Portugal is a country in southern Europe on the Iberian Peninsula, which borders Spain. India, Indonesia, and Pakistan are all part of Asia.

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Portugal is a country in southern Europe on the Iberian Peninsula, which borders Spain. India, Indonesia, and Pakistan are all part of Asia.

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Chile is the country that is located farthest south on a map. This long, narrow country stretches along the western edge of South America.

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Chile is the country that is located farthest south on a map. This long, narrow country stretches along the western edge of South America.

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The capital of Australia is Canberra. Although Melbourne and Sydney are the two largest cities in Australia, Canberra became the capital of Australia on March 12, 1913. It is celebrated each year on Canberra Day.

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The capital of Australia is Canberra. Although Melbourne and Sydney are the two largest cities in Australia, Canberra became the capital of Australia on March 12, 1913. It is celebrated each year on Canberra Day.

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Stonehenge is one of the world's most famous prehistoric monuments. Stonehenge is located in Wiltshire, England. Historians and scientists have puzzled over its mysteries for many years.

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Stonehenge is one of the world's most famous prehistoric monuments. Stonehenge is located in Wiltshire, England. Historians and scientists have puzzled over its mysteries for many years.

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Neutral colors are hues that appear to be without color, such as variations of beige, ivory, and taupe. White and black are also considered to be neutral shades.

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Neutral colors are hues that appear to be without color, such as variations of beige, ivory, and taupe. White and black are also considered to be neutral shades.

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The meerkat is a small type of mongoose found in the southern region of Africa. Meerkats often stand on their hind legs.

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The meerkat is a small type of mongoose found in the southern region of Africa. Meerkats often stand on their hind legs.

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Dairy is any product containing or made from milk; all of the above answers are types of cheese, which is a dairy product.

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Dairy is any product containing or made from milk; all of the above answers are types of cheese, which is a dairy product.

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The artichoke is actually part of the daisy family. It is a wildflower, and each layer is an unbloomed flower bud.

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The artichoke is actually part of the daisy family. It is a wildflower, and each layer is an unbloomed flower bud.

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Color colors are hues of blue, green, and purple. Cool colors tend to remind the viewer of water, sky, ice, or snow.

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Color colors are hues of blue, green, and purple. Cool colors tend to remind the viewer of water, sky, ice, or snow.

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There are several major divisions of mathematics, but geology is not one of them. Geology is the study of the earth's physical structure and substance.

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There are several major divisions of mathematics, but geology is not one of them. Geology is the study of the earth's physical structure and substance.

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The three branches of government are legislative, executive, and judicial. A monarchy is a form of government that is lead by a monarch, such as in Japan or Denmark.

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The three branches of government are legislative, executive, and judicial. A monarchy is a form of government that is lead by a monarch, such as in Japan or Denmark.

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Vinegar is a main ingredient in ketchup, along with tomatoes, sugar, and various seasonings.

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Vinegar is a main ingredient in ketchup, along with tomatoes, sugar, and various seasonings.