| Australian Capitals | 0 | - | 4.92 | 62,727 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,150 |
| Official European Union Languages | 0 | - | 4.97 | 238,559 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,892 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,103 |
| Australia True or False | 0 | - | 4.87 | 56,867 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,743 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,173 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,451 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,528 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,346 |
| Australia Country Quiz | 0 | - | 4.43 | 69,599 |
| Regions of New Zealand | 0 | - | 4.85 | 28,521 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,581 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,653 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,244 |
| Slavic Languages | 0 | - | 4.68 | 54,378 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,193 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,558 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 220,111 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,116 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,091 |
| Top World Languages | 0 | - | 4.92 | 822,423 |
| Europe Map Quiz | 0 | - | 5.00 | 4,763,849 |
| Countries by Official Language | 0 | - | 4.95 | 194,970 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,964 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,985 |
| Countries in their Native Language | 0 | - | 4.99 | 198,479 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,823 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,292 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,531 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 48,023 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,282 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,362 |
| Asia Map Quiz | 0 | - | 4.99 | 917,070 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,152 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,192 |
| Word Chain - Australia | 0 | - | 4.38 | 38,143 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,901 |
| Countries of Africa | 0 | - | 5.00 | 2,537,870 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,852 |
| African East Coast | 0 | - | 4.96 | 96,092 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,910 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,727 |
| Australia Map Quiz | 0 | - | 4.95 | 344,661 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,328 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,661 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,089 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,538 |
| Celtic Nations | 0 | - | 4.69 | 46,952 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,997 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,304 |
| The Only European Country ... | 0 | - | 4.91 | 216,714 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,187 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,845 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,000 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,383,152 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,107 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,138 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,403 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,700 |
| German-Speaking Countries | 0 | - | 4.92 | 145,584 |
| Italian Name Translation | 0 | - | 4.83 | 46,870 |
| French-Speaking Countries | 0 | - | 4.85 | 270,551 |
| French Food Words | 0 | - | 4.80 | 194,917 |
| Officially Recognized Languages of India | 0 | - | 4.39 | 31,347 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,982 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,024 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,608 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,270 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,285 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,555 |
| African Island Countries | 0 | - | 4.96 | 101,658 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,449 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,685 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,056 |
| Australian States and Territories | 0 | - | 4.96 | 142,005 |
| Famous Australians by Description | 0 | - | 4.23 | 27,943 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,294 |
| Australian Slang | 0 | - | 4.24 | 28,628 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,622 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,245 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,806 |
| North America Map Quiz | 0 | - | 4.98 | 248,611 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,843 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,890 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,388 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,692 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,229 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,780 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,177 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,388 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,606 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 171,970 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,269 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,312 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,220 |
| Slavic Countries | 0 | - | 4.96 | 111,692 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,363 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,018 |
| Languages of Spain | 0 | - | 4.36 | 23,322 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,262 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,767 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,174 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,011 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,925 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,531 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,411 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 49,962 |
| Countries of the Middle East | 0 | - | 4.96 | 201,219 |
| English Speaking Countries | 0 | - | 4.64 | 357,357 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,846 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,672 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,582 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,222 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,535 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,649 |
| Flags of North and South America | 0 | - | 4.99 | 373,196 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,010 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,516 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,661 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,554 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,582 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,920 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,502 |
| Counties of England | 0 | - | 4.97 | 797,059 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,158 |
| Flags of Asia Quiz | 0 | - | 4.99 | 613,773 |
| Places in their Native Language #2 | 0 | - | 4.80 | 134,314 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,758 |
| States of India | 0 | - | 4.95 | 193,424 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,341 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,788 |
| The Only African Country ... | 0 | - | 4.99 | 129,116 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,137 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,883 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 322,351 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,222 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.88 | 57,475 |
| Flags of Oceania | 0 | - | 5.00 | 259,526 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 145,434 |
| The Only American Country ... | 0 | - | 4.92 | 121,634 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,135 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,590 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,390 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 58,009 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,685 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,191 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,488 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,489 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,481 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,090 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,950 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,096 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,877 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,571 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,369 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,157 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,783 |
| Monarchies of Europe | 0 | - | 4.90 | 98,168 |
| European Countries with One Border | 0 | - | 4.97 | 182,811 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,610 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,644 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,424 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,360 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,923 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,471 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,860 |
| States of Germany | 0 | - | 4.96 | 152,663 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,062 |
| Regions of Italy | 0 | - | 4.92 | 75,917 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,195 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,991 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,228 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,619 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,017 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,689 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,707 |
| Champions League Winners | 0 | - | 4.92 | 1,007,053 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,529 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,027 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,319 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,868 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,231 |
| Monarchies of Asia | 0 | - | 4.97 | 71,104 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,901 |
| Provinces of Turkey | 0 | - | 4.95 | 204,259 |
| Provinces of China | 0 | - | 4.97 | 204,611 |
| Japanese Prefectures | 0 | - | 4.98 | 137,005 |
| Name an Official Language A-Z | 0 | - | 4.91 | 176,037 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,861 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,881 |
| States of India Map Quiz | 0 | - | 4.83 | 26,531 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,243 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,734 |
| African Great Lakes | 0 | - | 4.82 | 66,276 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,622 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,621 |
| Name a Valid African Country | 0 | - | 4.98 | 154,112 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,806 |
