| Australian Capitals | 0 | - | 4.92 | 62,817 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,643 |
| Official European Union Languages | 0 | - | 4.97 | 239,606 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,543 |
| Australia True or False | 0 | - | 4.87 | 57,103 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,947 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,505 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,979 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,714 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,094 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,647 |
| Australia Country Quiz | 0 | - | 4.43 | 69,800 |
| Regions of New Zealand | 0 | - | 4.84 | 28,693 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,941 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,145 |
| Slavic Languages | 0 | - | 4.68 | 54,656 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,485 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,654 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,183 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,148 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,737 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,420 |
| Top World Languages | 0 | - | 4.92 | 828,669 |
| Europe Map Quiz | 0 | - | 5.00 | 4,783,859 |
| Countries by Official Language | 0 | - | 4.95 | 195,841 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,191 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,415 |
| Countries in their Native Language | 0 | - | 4.99 | 199,615 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,825 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,589 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 48,242 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,514 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,585 |
| Asia Map Quiz | 0 | - | 4.99 | 924,080 |
| Africa Map Quiz | 0 | - | 5.00 | 2,127,230 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,229 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,365 |
| Word Chain - Australia | 0 | - | 4.38 | 38,229 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,038 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,365 |
| Australia Map Quiz | 0 | - | 4.95 | 345,977 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,680 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,877 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,518 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,978 |
| Celtic Nations | 0 | - | 4.61 | 47,079 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,266 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,905 |
| The Only European Country ... | 0 | - | 4.91 | 218,655 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,340 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,027 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,816 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,730 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,368 |
| Countries of Africa | 0 | - | 5.00 | 2,555,917 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,726 |
| African East Coast | 0 | - | 4.96 | 96,658 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,499 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,653 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,930 |
| German-Speaking Countries | 0 | - | 4.92 | 145,963 |
| Italian Name Translation | 0 | - | 4.83 | 47,815 |
| French-Speaking Countries | 0 | - | 4.85 | 271,512 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,769 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,721 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,127 |
| Australian States and Territories | 0 | - | 4.96 | 142,740 |
| Famous Australians by Description | 0 | - | 4.23 | 28,118 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,471 |
| Australian Slang | 0 | - | 4.24 | 28,711 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,912 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,709 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,524 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,738 |
| North America Map Quiz | 0 | - | 4.98 | 251,241 |
| United States Map Quiz | 0 | - | 4.98 | 4,169,464 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,132 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,488 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,386 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,933 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,479 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,690 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,949 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,441 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,334 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,216 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,056 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,699 |
| Slavic Countries | 0 | - | 4.96 | 112,276 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,668 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,389 |
| Languages of Spain | 0 | - | 4.36 | 23,417 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,700 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,441 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,807 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,063 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,686 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,215 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,424 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,499 |
| Countries of the Middle East | 0 | - | 4.96 | 202,422 |
| Officially Recognized Languages of India | 0 | - | 4.40 | 31,535 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,462 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,207 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,380 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,173 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,041 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,463 |
| African Island Countries | 0 | - | 4.96 | 102,347 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,447 |
| English Speaking Countries | 0 | - | 4.64 | 358,093 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 70,295 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,885 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,061 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,747 |
| Flags of North and South America | 0 | - | 4.99 | 376,359 |
| South America Map Quiz | 0 | - | 5.00 | 1,555,370 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,030,101 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,660 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,050 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,255,671 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,334,546 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,719 |
| Counties of England | 0 | - | 4.97 | 802,033 |
| Flags of Asia Quiz | 0 | - | 4.99 | 619,073 |
| Flags of Africa Quiz | 0 | - | 5.00 | 476,568 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,961 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,872 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,063 |
| Flags of Oceania | 0 | - | 5.00 | 262,225 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,397 |
| The Only American Country ... | 0 | - | 4.92 | 122,137 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,587 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 904,610 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,722 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,086 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,868 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,825 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,710 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,869 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,901 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,215 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,440 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,622 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,403 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,359 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,402 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,686 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,371 |
| Monarchies of Europe | 0 | - | 4.90 | 98,755 |
| European Countries with One Border | 0 | - | 4.97 | 183,625 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,388 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,406 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,201 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,225 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,402 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,499 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,677 |
| States of Germany | 0 | - | 4.95 | 154,237 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,618 |
| Regions of Italy | 0 | - | 4.92 | 76,911 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,733 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,160 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,676 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,179 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,454 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,826 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,822 |
| Champions League Winners | 0 | - | 4.92 | 1,014,696 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,913 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,720 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,007 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,253 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,695 |
| Monarchies of Asia | 0 | - | 4.97 | 71,450 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,235 |
| Provinces of Turkey | 0 | - | 4.94 | 205,671 |
| Provinces of China | 0 | - | 4.97 | 207,454 |
| Japanese Prefectures | 0 | - | 4.98 | 138,717 |
| States of India | 0 | - | 4.95 | 195,566 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,536 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,238 |
| The Only African Country ... | 0 | - | 4.99 | 129,582 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,348 |
| 10 Easternmost Countries in Africa | 0 | - | 4.97 | 24,944 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,376 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,989 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,729 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 59,567 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,813 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,776 |
| D.R. Congo Country Quiz | 0 | - | 4.88 | 39,543 |
| Palau Country Quiz | 0 | - | 4.90 | 23,131 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,855 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,529 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,728 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,536 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,932 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,607 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,364 |
