| South America Map Quiz | 0 | - | 5.00 | 1,540,569 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,074 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,828 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,352 |
| States of Brazil | 0 | - | 4.98 | 86,260 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 127,985 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,562 |
| States of Mexico | 0 | - | 4.95 | 173,156 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,705 |
| South American Physical Geography | 0 | - | 4.58 | 18,263 |
| Central American Countries | 0 | - | 4.98 | 154,944 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,671 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,049 |
| Animals of Australia | 0 | - | 4.52 | 42,137 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,213 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,556 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,275 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,378 |
| Flags of North and South America | 0 | - | 4.99 | 366,116 |
| Belize Country Quiz | 0 | - | 4.85 | 20,785 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,774 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,481 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,537 |
| Countries With The Most Bird Species | 0 | - | 4.92 | 32,260 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,349 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,193 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,943 |
| Guyana Country Quiz | 0 | - | 4.49 | 22,564 |
| Venezuela Country Quiz | 0 | - | 4.50 | 30,369 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,062 |
| Bolivia Country Quiz | 0 | - | 4.63 | 25,994 |
| Suriname Country Quiz | 0 | - | 4.60 | 19,652 |
| The Only American Country ... | 0 | - | 4.92 | 120,686 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,283 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| South American Cities on the Map | 0 | - | 4.57 | 35,237 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,289 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,891 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,839 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,887 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,221 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,796 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,997 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,448 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,135 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,974 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,433 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,466 |
| African Great Lakes | 0 | - | 4.82 | 65,069 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,684 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,025 |
| History of Mexico | 0 | - | 4.58 | 15,223 |
| Word Chain - South America | 0 | - | 4.51 | 23,758 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,437 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,570 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,073 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,121 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,494 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,562 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,431 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,055 |
| Countries Bordering Brazil | 0 | - | 4.96 | 130,983 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,260 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,282 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,838 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,328 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,780 |
| Pixelated United States Map | 0 | - | 4.89 | 93,392 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,343 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,761 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,429 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,623 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,272 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,321 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,543 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,812 |
| U.S. States By Population | 0 | - | 4.92 | 152,289 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,299 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,798 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,855 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,727 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,811 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,803 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,045 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,421 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,041 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,627 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,009 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,887 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,277 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,761 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,791 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,761 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,782 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,115 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,595 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,584 |
| Animals by Close-up Image | 0 | - | 4.42 | 216,510 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,197 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,887 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,053 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,762 |
| Famous People from South America | 0 | - | 4.15 | 21,776 |
| Rivers of the United States | 0 | - | 4.93 | 65,444 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,116 |
| Asian Physical Geography | 0 | - | 4.61 | 35,362 |
| Countries with More Cows than People | 0 | - | 4.43 | 54,599 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,041 |
| Birds by Picture #1 | 0 | - | 4.47 | 41,063 |
| North American Bird-Named Teams | 0 | - | 4.43 | 67,603 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,503 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,380 |
| Mexican Foods | 0 | - | 4.07 | 14,606 |
| South America A-Z | 0 | - | 4.13 | 10,835 |
| El Salvador Country Quiz | 0 | - | 4.62 | 31,449 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,188 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,661 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,343 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,580 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,919 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,635 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,002 |
| Territories of the United States | 0 | - | 4.79 | 52,109 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,358 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,461 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,700 |
| New York City Geography | 0 | - | 4.42 | 32,893 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,187 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,498 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,984 |
| Largest Land Animals of Asia | 0 | - | 3.62 | 8,252 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,882 |
| Countries with Wild Lions | 0 | - | 4.77 | 25,946 |
| Animals A-Z by Picture | 0 | - | 4.08 | 65,851 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,738 |
| Mammals by Picture #4 | 0 | - | 4.03 | 33,877 |
| Mammals by Picture #2 | 0 | - | 4.28 | 57,819 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,645 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,251 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,153 |
| African Physical Geography | 0 | - | 4.51 | 31,560 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,696 |
| Australian Capitals | 0 | - | 4.92 | 62,586 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,273 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,241 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,463 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,069 |
| United States Country Quiz | 0 | - | 4.43 | 100,500 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,584 |
| Canada Country Quiz | 0 | - | 4.54 | 131,651 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,571 |
| Canada A-Z | 0 | - | 4.73 | 32,634 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,540 |
| Official European Union Languages | 0 | - | 4.97 | 236,397 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,622 |
| European Physical Geography | 0 | - | 4.26 | 33,367 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,940 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,529 |
| Asia Map Quiz | 0 | - | 4.99 | 906,182 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,616 |
| Birds by Picture #2 | 0 | - | 4.33 | 35,912 |
| Birds by Picture #3 | 0 | - | 4.24 | 32,810 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,663 |
| Countries of Africa | 0 | - | 5.00 | 2,505,471 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,754 |
| African East Coast | 0 | - | 4.96 | 94,959 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,835 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,037 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,736 |
| Australian Animals By Picture | 0 | - | 4.45 | 31,433 |
| Australia Map Quiz | 0 | - | 4.94 | 342,294 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,191 |
| Pixelated Americas Map | 0 | - | 4.40 | 46,776 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,607 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,941 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,306 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,179 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,459 |
| Which South American Country? | 0 | - | 4.69 | 51,701 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,053 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,028 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,359 |
| Chile Country Quiz | 0 | - | 4.75 | 39,699 |
| Peru Country Quiz | 0 | - | 4.54 | 48,264 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 31,887 |
| Cuba Country Quiz | 0 | - | 4.69 | 51,140 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,074 |
| Top U.S. Universities | 0 | - | 4.15 | 143,967 |
| Largest United States Airlines | 0 | - | 4.39 | 54,820 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,627 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,733 |
| U.S. States by Governor | 0 | - | 4.43 | 17,976 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,563 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,535 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,569 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,746 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,982 |
| New England States | 0 | - | 4.51 | 59,700 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,442 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,878 |
