| Australian Capitals | 0 | - | 4.92 | 62,598 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,636 |
| Official European Union Languages | 0 | - | 4.97 | 237,057 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,773 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,583 |
| Australia True or False | 0 | - | 4.87 | 56,536 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,398 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,681 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,756 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,267 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,953 |
| Australia Country Quiz | 0 | - | 4.43 | 69,321 |
| Regions of New Zealand | 0 | - | 4.85 | 28,229 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,100 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,608 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,667 |
| Slavic Languages | 0 | - | 4.67 | 54,023 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,245 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,439 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,984 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,217 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,330 |
| Top World Languages | 0 | - | 4.92 | 813,828 |
| Europe Map Quiz | 0 | - | 5.00 | 4,733,978 |
| Countries by Official Language | 0 | - | 4.95 | 192,889 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,596 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,024 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,292 |
| Countries in their Native Language | 0 | - | 4.99 | 196,744 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,919 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,514 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,905 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 47,747 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,500 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,730 |
| Asia Map Quiz | 0 | - | 4.99 | 907,739 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,049 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,891 |
| Word Chain - Australia | 0 | - | 4.37 | 38,017 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,733 |
| Countries of Africa | 0 | - | 5.00 | 2,510,253 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,889 |
| African East Coast | 0 | - | 4.96 | 95,132 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,009 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,890 |
| Australia Map Quiz | 0 | - | 4.94 | 342,663 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,306 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,254 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,184 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,511 |
| Celtic Nations | 0 | - | 4.69 | 46,826 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,569 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,716 |
| The Only European Country ... | 0 | - | 4.91 | 214,088 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,722 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,585 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,564 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,624 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,603 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,133 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,725 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,330 |
| German-Speaking Countries | 0 | - | 4.89 | 123,540 |
| Italian Name Translation | 0 | - | 4.81 | 45,190 |
| French-Speaking Countries | 0 | - | 4.85 | 268,965 |
| Officially Recognized Languages of India | 0 | - | 4.38 | 31,088 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,471 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,728 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,641 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,363 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,554 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,250 |
| African Island Countries | 0 | - | 4.96 | 100,858 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,827 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,636 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,986 |
| Australian States and Territories | 0 | - | 4.96 | 140,985 |
| Famous Australians by Description | 0 | - | 4.23 | 27,656 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,035 |
| Australian Slang | 0 | - | 4.25 | 28,491 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,187 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,228 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,347 |
| North America Map Quiz | 0 | - | 4.98 | 244,799 |
| United States Map Quiz | 0 | - | 4.98 | 4,143,256 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,531 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,251 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,783 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,386 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,541 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,530 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,910 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,023 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,178 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,648 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,352 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,280 |
| Slavic Countries | 0 | - | 4.96 | 110,923 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,065 |
| Languages of Spain | 0 | - | 4.36 | 23,162 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,410 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,865 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,481 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,327 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,846 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,589 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,925 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,226 |
| Countries of the Middle East | 0 | - | 4.96 | 199,115 |
| English Speaking Countries | 0 | - | 4.64 | 356,136 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,172 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,295 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,862 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,335 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,999 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,192 |
| Flags of North and South America | 0 | - | 4.99 | 367,921 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,791 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,814 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,295 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,339 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,228,326 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,631 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,186 |
| Counties of England | 0 | - | 4.97 | 789,851 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,453 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,244 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,308 |
| States of India | 0 | - | 4.94 | 190,515 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,020 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,283 |
| The Only African Country ... | 0 | - | 4.99 | 128,411 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,806 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,149 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,496 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,168 |
| Flags of Oceania | 0 | - | 5.00 | 255,600 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,497 |
| The Only American Country ... | 0 | - | 4.92 | 120,834 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,410 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,367 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,993 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,067 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,951 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,080 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,009 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,437 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,930 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,121 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,541 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,416 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,409 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,093 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,497 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,003 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,296 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,892 |
| Monarchies of Europe | 0 | - | 4.90 | 97,391 |
| European Countries with One Border | 0 | - | 4.97 | 181,727 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,633 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,352 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,049 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,249 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,266 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,305 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,822 |
| States of Germany | 0 | - | 4.96 | 150,274 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,100 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,569 |
| Regions of Italy | 0 | - | 4.92 | 74,824 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,892 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,468 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,288 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,374 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,094 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,222 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,551 |
| Champions League Winners | 0 | - | 4.92 | 997,276 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,045 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,137 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,449 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,963 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,496 |
| Monarchies of Asia | 0 | - | 4.97 | 70,644 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,461 |
| Provinces of Turkey | 0 | - | 4.95 | 201,578 |
| Provinces of China | 0 | - | 4.97 | 200,464 |
| Japanese Prefectures | 0 | - | 4.98 | 134,788 |
| Name an Official Language A-Z | 0 | - | 4.91 | 174,877 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,278 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,997 |
| Kazakhstan Country Quiz | 0 | - | 4.82 | 34,422 |
| States of India Map Quiz | 0 | - | 4.82 | 26,079 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,814 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,385 |
| African Great Lakes | 0 | - | 4.82 | 65,262 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,915 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,419 |
| Name a Valid African Country | 0 | - | 4.98 | 153,042 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,516 |
