| Australia True or False | 0 | - | 4.87 | 57,007 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,663 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,542 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,097 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,138 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,968 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,804 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,495 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,076 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,765 |
| Australian Capitals | 0 | - | 4.92 | 62,780 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,541 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,439 |
| Official European Union Languages | 0 | - | 4.97 | 239,161 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,271 |
| Europe Map Quiz | 0 | - | 5.00 | 4,775,496 |
| Oceania Map Quiz | 0 | - | 4.98 | 656,428 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,648 |
| Germany True or False? | 0 | - | 4.61 | 48,926 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,286 |
| Asia Map Quiz | 0 | - | 4.99 | 921,281 |
| Africa Map Quiz | 0 | - | 5.00 | 2,123,576 |
| France Multiple Choice | 0 | - | 4.39 | 40,790 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,063 |
| Australia Map Quiz | 0 | - | 4.95 | 345,476 |
| New World Crops | 0 | - | 4.38 | 30,926 |
| North American Physical Geography | 0 | - | 4.35 | 30,440 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,461 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,089 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,790 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,933 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,386 |
| Celtic Nations | 0 | - | 4.69 | 47,026 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,166 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 116,300 |
| The Only European Country ... | 0 | - | 4.91 | 217,851 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,883 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,948 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,527 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,469 |
| Countries of Africa | 0 | - | 5.00 | 2,548,639 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,391 |
| African East Coast | 0 | - | 4.96 | 96,421 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,283 |
| Australian States and Territories | 0 | - | 4.96 | 142,397 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,399 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,792 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,526 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,247 |
| North America Map Quiz | 0 | - | 4.98 | 249,924 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,845 |
| United States Map Quiz | 0 | - | 4.98 | 4,165,338 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,382 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,014 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,456 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,119 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,669 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,785 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,486 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,757 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,751 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 174,053 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,846 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,746 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,521 |
| Slavic Countries | 0 | - | 4.96 | 112,025 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,266 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,502 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,186 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,542 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,701 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,389 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,940 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,766 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,008 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,273 |
| Countries of the Middle East | 0 | - | 4.96 | 201,928 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,635 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,851 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,320 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,790 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,117 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,851 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,773 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,098 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,713 |
| African Island Countries | 0 | - | 4.96 | 102,062 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,099 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,488 |
| Australia Country Quiz | 0 | - | 4.43 | 69,711 |
| Flags of North and South America | 0 | - | 4.99 | 375,001 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,681 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,745 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,027,229 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,371 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,364 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,250,934 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,332,050 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,648 |
| Counties of England | 0 | - | 4.97 | 800,062 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,060 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,973 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,838 |
| Flags of Africa Quiz | 0 | - | 5.00 | 474,397 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,833 |
| Literature Multiple Choice #1 | 0 | - | 4.51 | 40,991 |
| Literature Multiple Choice #2 | 0 | - | 4.45 | 34,655 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,831 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,277 |
| Flags of Oceania | 0 | - | 5.00 | 261,073 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,486 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,106 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,778 |
| Regions of New Zealand | 0 | - | 4.84 | 28,628 |
| The Only American Country ... | 0 | - | 4.92 | 121,922 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,378 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,260 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,334 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,942 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,520 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,677 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,348 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,697 |
| The U.S. Pledge of Allegiance | 0 | - | 4.00 | 18,385 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,566 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,097 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,291 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,239 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,175 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,034 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,942 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,497 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,127 |
| Monarchies of Europe | 0 | - | 4.90 | 98,475 |
| European Countries with One Border | 0 | - | 4.97 | 183,297 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,079 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,587 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,894 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,059 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,271 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,464 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,503 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,356 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,224 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,014 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,365 |
| States of Germany | 0 | - | 4.95 | 153,639 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,389 |
| Regions of Italy | 0 | - | 4.92 | 76,463 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,532 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,737 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,502 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,552 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,267 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,391 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,776 |
| Champions League Winners | 0 | - | 4.92 | 1,011,313 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,775 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,420 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,702 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,747 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,506 |
| Monarchies of Asia | 0 | - | 4.97 | 71,308 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,096 |
| Provinces of Turkey | 0 | - | 4.94 | 204,986 |
| Provinces of China | 0 | - | 4.97 | 206,181 |
| Japanese Prefectures | 0 | - | 4.98 | 138,059 |
| States of India | 0 | - | 4.95 | 194,686 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,449 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,078 |
| The Only African Country ... | 0 | - | 4.99 | 129,389 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,266 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,175 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,478 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,512 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 58,815 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,649 |
| D.R. Congo Country Quiz | 0 | - | 4.88 | 39,477 |
| Palau Country Quiz | 0 | - | 4.90 | 23,077 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,740 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,376 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,225 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,499 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,886 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,568 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,318 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,502 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,628 |
| States of Mexico | 0 | - | 4.96 | 177,178 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,309 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,211 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,329 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,339 |
| States of Brazil | 0 | - | 4.97 | 88,922 |
| Central American Countries | 0 | - | 4.98 | 156,930 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,043 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,376 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,207 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,991 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,055 |
