| Australian Capitals | 0 | - | 4.92 | 62,583 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,510 |
| Official European Union Languages | 0 | - | 4.97 | 236,328 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,591 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,226 |
| Australia True or False | 0 | - | 4.87 | 56,458 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,332 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,528 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 70,568 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,214 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,874 |
| Australia Country Quiz | 0 | - | 4.43 | 69,232 |
| Regions of New Zealand | 0 | - | 4.85 | 28,097 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,009 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 525,977 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,316 |
| Slavic Languages | 0 | - | 4.67 | 53,923 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,906 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,408 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,256 |
| Top European Languages on a Map | 0 | - | 4.77 | 130,975 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,810 |
| Top World Languages | 0 | - | 4.92 | 811,890 |
| Europe Map Quiz | 0 | - | 5.00 | 4,726,936 |
| Countries by Official Language | 0 | - | 4.95 | 192,578 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,257 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,889 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,851 |
| Countries in their Native Language | 0 | - | 4.99 | 196,455 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,638 |
| Africa Map Quiz | 0 | - | 5.00 | 2,102,570 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,370 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 47,667 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,801 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,436,929 |
| Asia Map Quiz | 0 | - | 4.99 | 905,624 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,032 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,830 |
| Word Chain - Australia | 0 | - | 4.37 | 37,999 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,679 |
| Countries of Africa | 0 | - | 5.00 | 2,504,028 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,699 |
| African East Coast | 0 | - | 4.96 | 94,904 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,767 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,715 |
| Australia Map Quiz | 0 | - | 4.94 | 342,206 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,811 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,150 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,704 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,046 |
| Celtic Nations | 0 | - | 4.69 | 46,796 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,479 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,322 |
| The Only European Country ... | 0 | - | 4.91 | 213,455 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,302 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,523 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,279 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,374,484 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,504 |
| Spanish to English Country Names | 0 | - | 4.85 | 31,888 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,631 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,240 |
| German-Speaking Countries | 0 | - | 4.89 | 123,465 |
| French-Speaking Countries | 0 | - | 4.85 | 268,599 |
| Officially Recognized Languages of India | 0 | - | 4.38 | 31,044 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,169 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,458 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,452 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,142 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,413 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,896 |
| African Island Countries | 0 | - | 4.96 | 100,641 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,433 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,627 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,965 |
| Australian States and Territories | 0 | - | 4.95 | 140,543 |
| Famous Australians by Description | 0 | - | 4.23 | 27,408 |
| Australian Immigration by Country | 0 | - | 4.81 | 76,987 |
| Australian Slang | 0 | - | 4.25 | 28,451 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,102 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,064 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 127,932 |
| North America Map Quiz | 0 | - | 4.98 | 243,957 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,459 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,452 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,224 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,571 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,183 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,014 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,397 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,768 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,537 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,491 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,154 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,129 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,055 |
| Slavic Countries | 0 | - | 4.96 | 110,765 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,003 |
| Languages of Spain | 0 | - | 4.36 | 23,127 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,256 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,667 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,313 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,125 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,575 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,348 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,585 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,004 |
| Countries of the Middle East | 0 | - | 4.96 | 198,682 |
| English Speaking Countries | 0 | - | 4.68 | 355,873 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,008 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,193 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,680 |
| U.S. Cities With Spanish Names | 0 | - | 4.93 | 21,931 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,127 |
| 10 African Countries with the Most Tourists | 0 | - | 4.38 | 60,090 |
| Flags of North and South America | 0 | - | 4.99 | 365,339 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,194 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,290 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,219 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,274 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,223,853 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,492 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,090 |
| Counties of England | 0 | - | 4.97 | 788,217 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,044 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,399 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,212 |
| States of India | 0 | - | 4.94 | 189,654 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,967 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,192 |
| The Only African Country ... | 0 | - | 4.99 | 128,253 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,730 |
| Pixelated Africa Map | 0 | - | 4.98 | 98,937 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,177 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,001 |
| Flags of Oceania | 0 | - | 5.00 | 254,564 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,299 |
| The Only American Country ... | 0 | - | 4.92 | 120,647 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,246 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,325 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,467 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,849 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,813 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,778 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,827 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,140 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,737 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,965 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,423 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,282 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,260 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,953 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,196 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,619 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,102 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,626 |
| Monarchies of Europe | 0 | - | 4.90 | 97,197 |
| European Countries with One Border | 0 | - | 4.97 | 181,442 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 177,958 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,108 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,748 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,555 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,095 |
| Regions of France Map Quiz | 0 | - | 4.97 | 142,979 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,546 |
| States of Germany | 0 | - | 4.96 | 149,740 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,897 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,480 |
| Regions of Italy | 0 | - | 4.92 | 74,585 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,723 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,122 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,050 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,857 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,828 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,919 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,392 |
| Champions League Winners | 0 | - | 4.92 | 994,926 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,924 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,902 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,236 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,521 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,273 |
| Monarchies of Asia | 0 | - | 4.97 | 70,531 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,376 |
| Provinces of Turkey | 0 | - | 4.95 | 199,887 |
| Provinces of China | 0 | - | 4.97 | 199,660 |
| Japanese Prefectures | 0 | - | 4.98 | 134,251 |
| Name an Official Language A-Z | 0 | - | 4.90 | 174,561 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,115 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,696 |
| States of India Map Quiz | 0 | - | 4.82 | 25,983 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,701 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,283 |
| African Great Lakes | 0 | - | 4.82 | 65,017 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,772 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,281 |
| Name a Valid African Country | 0 | - | 4.98 | 152,796 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,447 |
| Tanzania Country Quiz | 0 | - | 4.91 | 32,784 |
| Morocco Country Quiz | 0 | - | 4.81 | 45,970 |
