| South America Map Quiz | 0 | - | 5.00 | 1,550,194 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,962 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,981 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,113 |
| States of Brazil | 0 | - | 4.97 | 88,221 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,853 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,480 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,152 |
| States of Mexico | 0 | - | 4.96 | 176,224 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,795 |
| Central American Countries | 0 | - | 4.98 | 156,518 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,544 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,572 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,534 |
| Countries that Beat Canada | 0 | - | 4.91 | 97,875 |
| United States Map Quiz | 0 | - | 4.98 | 4,159,399 |
| Flags of North and South America | 0 | - | 4.99 | 373,375 |
| South American Physical Geography | 0 | - | 4.58 | 18,356 |
| Belize Country Quiz | 0 | - | 4.85 | 20,983 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,816 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,798 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,691 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,169 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,656 |
| Guyana Country Quiz | 0 | - | 4.50 | 22,813 |
| Venezuela Country Quiz | 0 | - | 4.51 | 30,612 |
| Paraguay Country Quiz | 0 | - | 4.54 | 25,307 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,272 |
| Suriname Country Quiz | 0 | - | 4.61 | 19,823 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,349 |
| The Only American Country ... | 0 | - | 4.92 | 121,659 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,784 |
| South American Cities on the Map | 0 | - | 4.53 | 35,432 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,837 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 58,021 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,221 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,509 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,537 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,518 |
| American Foods | 0 | - | 3.66 | 39,385 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,501 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,130 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,960 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,167 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,347 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,777 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,501 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,409 |
| Name a Valid African Country | 0 | - | 4.98 | 154,144 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,227 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,490 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,759 |
| History of Mexico | 0 | - | 4.58 | 15,312 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,355 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,582 |
| Word Chain - South America | 0 | - | 4.51 | 23,912 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,973 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,701 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,220 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,893 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,260 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,415 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,977 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,224 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,252 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,778 |
| Italian Foods | 0 | - | 4.30 | 72,811 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,099 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,858 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,058 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,425 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,094 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,583 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,597 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,605 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,735 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,726 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,091 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,621 |
| Pixelated United States Map | 0 | - | 4.87 | 94,312 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,738 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,814 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,949 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,486 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,490 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,075 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,363 |
| U.S. States By Population | 0 | - | 4.92 | 153,593 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,501 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,467 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,567 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,368 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,234 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,659 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,069 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,795 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,260 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,565 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,288 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,803 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,506 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,590 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,403 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,405 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,122 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,862 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,785 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,588 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,986 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 336,753 |
| Famous People from South America | 0 | - | 4.15 | 21,983 |
| Countries that Beat Brazil | 0 | - | 4.49 | 68,677 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,742 |
| Countries That Produce the Most Spices | 0 | - | 4.44 | 41,601 |
| Countries that Produce the Most Cheese per Capita | 0 | - | 4.51 | 52,857 |
| Fruit and Vegetable Emojis | 0 | - | 4.44 | 89,887 |
| Countries Which Eat the Most Beef | 0 | - | 4.46 | 50,282 |
| Countries by Milk Production | 0 | - | 4.54 | 44,000 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,972 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,303 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,202 |
| South America A-Z | 0 | - | 4.13 | 10,909 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,432 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,887 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,590 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,703 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,045 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.68 | 22,099 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,781 |
| Grenada Country Quiz | 0 | - | 4.62 | 18,940 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,761 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,171 |
| Territories of the United States | 0 | - | 4.80 | 52,415 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,693 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,508 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,206 |
| New York City Geography | 0 | - | 4.42 | 33,106 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,619 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,688 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,295 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,964 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,242 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,245 |
| German Groups of Things | 0 | - | 4.46 | 38,484 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,285 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,515 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,568 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,258 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,269 |
| Foods of the World by Description | 0 | - | 4.18 | 46,042 |
| Countries That Eat the Most Pork | 0 | - | 4.18 | 39,283 |
| Countries that Produce the Most Cheese | 0 | - | 4.77 | 63,322 |
| Most Popular Fast Food Restaurants | 0 | - | 4.23 | 669,655 |
| Top 15 Countries with the Most Starbucks | 0 | - | 4.51 | 81,106 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,661 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,675 |
| Australian Capitals | 0 | - | 4.92 | 62,730 |
| Word Chain - Australia | 0 | - | 4.38 | 38,146 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,303 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,590 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,186 |
| United States Country Quiz | 0 | - | 4.43 | 101,560 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,902 |
| Canada Country Quiz | 0 | - | 4.55 | 132,520 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,239 |
| Canada A-Z | 0 | - | 4.73 | 32,843 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,180 |
| Official European Union Languages | 0 | - | 4.97 | 238,599 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,917 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,356 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,544 |
| Asia Map Quiz | 0 | - | 4.99 | 917,330 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,995 |
| Sushi Translation | 0 | - | 4.08 | 13,950 |
| Countries that Eat the Most Meat | 0 | - | 4.23 | 42,439 |
| Countries that Beat India | 0 | - | 4.42 | 63,031 |
| Countries of Africa | 0 | - | 5.00 | 2,538,719 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,891 |
| African East Coast | 0 | - | 4.96 | 96,109 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,956 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,375 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,057 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,753 |
| Australia Map Quiz | 0 | - | 4.95 | 344,725 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,189 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,455 |
| Which South American Country? | 0 | - | 4.69 | 51,954 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,517 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,861 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,656 |
| Chile Country Quiz | 0 | - | 4.77 | 40,077 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,868 |
| Peru Country Quiz | 0 | - | 4.54 | 48,673 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,199 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,527 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,468 |
| Top U.S. Universities | 0 | - | 4.15 | 145,181 |
| Largest United States Airlines | 0 | - | 4.39 | 55,040 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,722 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,561 |
