| Musical Instruments by Picture #1 | 0 | - | 4.52 | 269,223 |
| Cities with the Most Opera Performances | 0 | - | 4.64 | 41,547 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,478 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,558 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,652 |
| Europe Map Quiz | 0 | - | 5.00 | 4,769,970 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,367 |
| Oceania Map Quiz | 0 | - | 4.98 | 644,982 |
| Australian Capitals | 0 | - | 4.92 | 62,751 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,307 |
| Official European Union Languages | 0 | - | 4.97 | 238,881 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,107 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,941 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,588 |
| Asia Map Quiz | 0 | - | 4.99 | 919,230 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,074 |
| African East Coast | 0 | - | 4.96 | 96,258 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,115 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,865 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,747 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,733 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,508 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,095 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,637 |
| The Only European Country ... | 0 | - | 4.91 | 217,324 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,531 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,902 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,243 |
| Countries by National Anthem | 0 | - | 4.93 | 71,288 |
| Countries of Africa | 0 | - | 5.00 | 2,544,035 |
| Australia Map Quiz | 0 | - | 4.95 | 345,032 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,187 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,981 |
| Celtic Nations | 0 | - | 4.69 | 46,990 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,711 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,079 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,961 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,293 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,775 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,452 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,415 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,797 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,421 |
| African Island Countries | 0 | - | 4.96 | 101,851 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,793 |
| Australian States and Territories | 0 | - | 4.96 | 142,213 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,361 |
| Australia True or False | 0 | - | 4.87 | 56,948 |
| Flags of North and South America | 0 | - | 4.99 | 374,175 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,701 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,382 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,075 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,542 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,635 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,516 |
| North America Map Quiz | 0 | - | 4.98 | 249,304 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,804 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,557 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,546 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,292 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,953 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,423 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,054 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,496 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,896 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,408 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,310 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,339 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,519 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,149 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,825 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,593 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,536 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,378 |
| Slavic Countries | 0 | - | 4.96 | 111,869 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,454 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,178 |
| Counties of England | 0 | - | 4.97 | 798,632 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,643 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,386 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,992 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,349 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,212 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,202 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,753 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,629 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,723 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,088 |
| Countries of the Middle East | 0 | - | 4.96 | 201,623 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,585 |
| Rappers by Picture | 0 | - | 4.23 | 134,838 |
| States of India | 0 | - | 4.95 | 194,032 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,748 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,385 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,874 |
| The Only African Country ... | 0 | - | 4.99 | 129,266 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,197 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,037 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 322,773 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,376 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 58,333 |
| Flags of Oceania | 0 | - | 5.00 | 260,385 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,422 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 145,652 |
| Australia Country Quiz | 0 | - | 4.43 | 69,665 |
| Regions of New Zealand | 0 | - | 4.84 | 28,590 |
| The Only American Country ... | 0 | - | 4.92 | 121,798 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,261 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,881 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,163 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,820 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,378 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,597 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,721 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,593 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,375 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,024 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,710 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,195 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,028 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,818 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,660 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,364 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,567 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,966 |
| Monarchies of Europe | 0 | - | 4.90 | 98,328 |
| European Countries with One Border | 0 | - | 4.97 | 183,093 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,870 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,705 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,943 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,076 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,771 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,126 |
| States of Germany | 0 | - | 4.95 | 153,115 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,262 |
| Regions of Italy | 0 | - | 4.92 | 76,205 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,401 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,339 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,386 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,081 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,135 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,108 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,742 |
| Champions League Winners | 0 | - | 4.92 | 1,009,551 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,674 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,233 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,517 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,404 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,372 |
| Monarchies of Asia | 0 | - | 4.97 | 71,206 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,004 |
| Provinces of Turkey | 0 | - | 4.95 | 204,598 |
| Provinces of China | 0 | - | 4.97 | 205,532 |
| Japanese Prefectures | 0 | - | 4.98 | 137,540 |
| Musical Instruments by Picture #2 | 0 | - | 4.24 | 47,122 |
| BTS Members (K-Pop) | 0 | - | 3.37 | 27,116 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,006 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,065 |
| States of India Map Quiz | 0 | - | 4.83 | 26,592 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,341 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,810 |
| African Great Lakes | 0 | - | 4.82 | 66,494 |
| Word Chain - Africa | 0 | - | 4.47 | 31,644 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,753 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,791 |
| Name a Valid African Country | 0 | - | 4.98 | 154,326 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,849 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,125 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,579 |
| Palau Country Quiz | 0 | - | 4.90 | 23,054 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,661 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,259 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,106 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,479 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,861 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,551 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,293 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,361 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,560 |
| States of Mexico | 0 | - | 4.96 | 176,694 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,980 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,078 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,152 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,230 |
| States of Brazil | 0 | - | 4.97 | 88,549 |
| Central American Countries | 0 | - | 4.98 | 156,746 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,934 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,985 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,097 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,847 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,807 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,755 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,932 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,061 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,379 |
| US States Quiz | 0 | - | 5.00 | 16,913,209 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,772 |
| Mediterranean Geography on a Map | 0 | - | 4.49 | 37,303 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,801 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,163 |
