| Australian Capitals | 0 | - | 4.92 | 62,845 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,795 |
| Official European Union Languages | 0 | - | 4.97 | 239,910 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,733 |
| Australia True or False | 0 | - | 4.87 | 57,183 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,006 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,610 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,148 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,774 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,362 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.95 | 27,772 |
| Australia Country Quiz | 0 | - | 4.43 | 69,860 |
| Regions of New Zealand | 0 | - | 4.84 | 28,761 |
| Australia... or New Zealand? | 0 | - | 4.83 | 62,063 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,756 |
| Slavic Languages | 0 | - | 4.67 | 54,730 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,854 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,687 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,518 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,844 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,921 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,883 |
| Top World Languages | 0 | - | 4.92 | 830,585 |
| Europe Map Quiz | 0 | - | 5.00 | 4,790,543 |
| Countries by Official Language | 0 | - | 4.95 | 196,131 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,496 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,798 |
| Countries in their Native Language | 0 | - | 4.99 | 199,849 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,046 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,833 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 48,300 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,131 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,918 |
| Asia Map Quiz | 0 | - | 4.99 | 925,906 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,709 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,250 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,439 |
| Word Chain - Australia | 0 | - | 4.38 | 38,253 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,075 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,527 |
| Australia Map Quiz | 0 | - | 4.95 | 346,311 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,140 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,960 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,015 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,398 |
| Celtic Nations | 0 | - | 4.61 | 47,109 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,353 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,320 |
| The Only European Country ... | 0 | - | 4.91 | 219,304 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,677 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,075 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,045 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,620 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,425 |
| Countries of Africa | 0 | - | 5.00 | 2,562,312 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,115 |
| African East Coast | 0 | - | 4.96 | 96,845 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,722 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,953 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,957 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,996 |
| German-Speaking Countries | 0 | - | 4.92 | 146,060 |
| Italian Name Translation | 0 | - | 4.83 | 48,052 |
| French-Speaking Countries | 0 | - | 4.85 | 271,783 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,740 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,141 |
| Australian States and Territories | 0 | - | 4.96 | 142,947 |
| Famous Australians by Description | 0 | - | 4.23 | 28,166 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,518 |
| Australian Slang | 0 | - | 4.24 | 28,744 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,043 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,917 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,747 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,775 |
| North America Map Quiz | 0 | - | 4.98 | 252,373 |
| United States Map Quiz | 0 | - | 4.98 | 4,172,423 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,208 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,519 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,670 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,244 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,028 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,851 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,078 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,968 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,164 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,610 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,272 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,831 |
| Slavic Countries | 0 | - | 4.96 | 112,441 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,714 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,486 |
| Languages of Spain | 0 | - | 4.36 | 23,455 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,869 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,640 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,004 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,238 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,915 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,389 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,752 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,698 |
| Countries of the Middle East | 0 | - | 4.96 | 203,098 |
| Officially Recognized Languages of India | 0 | - | 4.40 | 31,610 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,543 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,942 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,953 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,536 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 45,380 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,808 |
| African Island Countries | 0 | - | 4.96 | 102,641 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,739 |
| English Speaking Countries | 0 | - | 4.64 | 358,357 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 70,455 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,970 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,211 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,896 |
| Flags of North and South America | 0 | - | 4.99 | 377,508 |
| South America Map Quiz | 0 | - | 5.00 | 1,557,371 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,418 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,607 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,928 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,706 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,469 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,778 |
| Counties of England | 0 | - | 4.97 | 803,539 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,148 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,358 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 61,051 |
| Places in their Native Language #2 | 0 | - | 4.80 | 135,018 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,441 |
| Flags of Oceania | 0 | - | 5.00 | 263,087 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 146,595 |
| The Only American Country ... | 0 | - | 4.92 | 122,269 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,719 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,211 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,877 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,260 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,197 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,923 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,886 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,999 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,092 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,297 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,559 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,046 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,913 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,634 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,704 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,832 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,545 |
| Monarchies of Europe | 0 | - | 4.90 | 98,957 |
| European Countries with One Border | 0 | - | 4.97 | 183,915 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,629 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,984 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,462 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,719 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,520 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,732 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,895 |
| States of Germany | 0 | - | 4.95 | 154,713 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,743 |
| Regions of Italy | 0 | - | 4.92 | 77,170 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,846 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,448 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,826 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,622 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,571 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,152 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,847 |
| Champions League Winners | 0 | - | 4.92 | 1,016,991 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,075 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.90 | 106,962 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,186 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,635 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,830 |
| Monarchies of Asia | 0 | - | 4.97 | 71,554 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,319 |
| Provinces of Turkey | 0 | - | 4.95 | 206,093 |
| Provinces of China | 0 | - | 4.97 | 208,360 |
| Japanese Prefectures | 0 | - | 4.98 | 139,215 |
| States of India | 0 | - | 4.94 | 196,214 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,602 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,486 |
| The Only African Country ... | 0 | - | 4.99 | 129,740 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,416 |
| 10 Easternmost Countries in Africa | 0 | - | 4.98 | 25,189 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,519 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,382 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,932 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 60,266 |
| Name an Official Language A-Z | 0 | - | 4.91 | 177,065 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,868 |
| D.R. Congo Country Quiz | 0 | - | 4.88 | 39,614 |
| Palau Country Quiz | 0 | - | 4.89 | 23,154 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,920 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,651 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,884 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,557 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,963 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,630 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,401 |
