| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,377 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,612 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,580 |
| Official European Union Languages | 0 | - | 4.97 | 236,522 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,700 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,702 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,153 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,161 |
| North America Map Quiz | 0 | - | 4.98 | 244,424 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,243 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,353 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,898 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,346 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,530 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,014 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,470 |
| Slavic Languages | 0 | - | 4.67 | 53,982 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,099 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,425 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 48,894 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,365 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,100 |
| Top World Languages | 0 | - | 4.92 | 813,102 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,386 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,249 |
| Countries by Official Language | 0 | - | 4.95 | 192,763 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,451 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,973 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,116 |
| Countries in their Native Language | 0 | - | 4.99 | 196,627 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,791 |
| Top World Languages on a Map | 0 | - | 4.93 | 102,236 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.98 | 115,080 |
| Wikipedia Languages | 0 | - | 4.97 | 126,497 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,280 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,298 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,445 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,199 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,455 |
| Asia Map Quiz | 0 | - | 4.99 | 906,998 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,046 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,262 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,636 |
| All Wikipedia Languages | 0 | - | 4.94 | 27,707 |
| Countries of Africa | 0 | - | 5.00 | 2,507,799 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,813 |
| African East Coast | 0 | - | 4.96 | 95,044 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,924 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,798 |
| Australia Map Quiz | 0 | - | 4.94 | 342,477 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,193 |
| New World Crops | 0 | - | 4.33 | 23,502 |
| North American Physical Geography | 0 | - | 4.35 | 30,355 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,406 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,141 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,206 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,982 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,302 |
| Celtic Nations | 0 | - | 4.69 | 46,812 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,538 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,552 |
| The Only European Country ... | 0 | - | 4.91 | 213,832 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,532 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,567 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,468 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,899 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,023 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,291 |
| Top Five Languages by Language Family | 0 | - | 4.99 | 53,354 |
| German-Speaking Countries | 0 | - | 4.89 | 123,505 |
| Italian Name Translation | 0 | - | 4.81 | 45,032 |
| French-Speaking Countries | 0 | - | 4.85 | 268,794 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,434 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,622 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,574 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,274 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,505 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,106 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,446 |
| African Island Countries | 0 | - | 4.96 | 100,788 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,658 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,688 |
| Australian States and Territories | 0 | - | 4.95 | 140,845 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,018 |
| Australia True or False | 0 | - | 4.87 | 56,502 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,222 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,804 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,088 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,519 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,792 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,497 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,239 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,715 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,289 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,322 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,465 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,848 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,824 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,881 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,432 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,260 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,197 |
| Slavic Countries | 0 | - | 4.96 | 110,856 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,048 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,343 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,760 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,411 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,243 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,706 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,487 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,681 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,766 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,152 |
| Countries of the Middle East | 0 | - | 4.96 | 198,909 |
| English Speaking Countries | 0 | - | 4.64 | 356,015 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,097 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,247 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,187 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,326 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,160 |
| Australia Country Quiz | 0 | - | 4.43 | 69,281 |
| Flags of North and South America | 0 | - | 4.99 | 367,196 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,195 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,601 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,579 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,632 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,899 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,943 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,592 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,746 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,145 |
| Counties of England | 0 | - | 4.97 | 789,183 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,914 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,530 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,276 |
| English Words Formed by Latin and Greek Roots | 0 | - | 4.46 | 66,886 |
| States of India | 0 | - | 4.94 | 190,033 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,001 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,249 |
| The Only African Country ... | 0 | - | 4.99 | 128,364 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,776 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,068 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,331 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,107 |
| Flags of Oceania | 0 | - | 5.00 | 255,186 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,916 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,420 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,054 |
| Regions of New Zealand | 0 | - | 4.85 | 28,140 |
| The Only American Country ... | 0 | - | 4.92 | 120,758 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,340 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,787 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,962 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,974 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,956 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,326 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,867 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,295 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,070 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,492 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,583 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,661 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,365 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,331 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,042 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,393 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,853 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,214 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,807 |
| Monarchies of Europe | 0 | - | 4.90 | 97,309 |
| European Countries with One Border | 0 | - | 4.97 | 181,623 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,520 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,253 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,946 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,420 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,410 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,112 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,790 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,991 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,195 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,127 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,680 |
| States of Germany | 0 | - | 4.96 | 150,046 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,011 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,520 |
| Regions of Italy | 0 | - | 4.92 | 74,725 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,809 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,342 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,162 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,150 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,908 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,085 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,405 |
| Champions League Winners | 0 | - | 4.92 | 996,326 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,998 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,039 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,360 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,770 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,410 |
