| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,380 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,623 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,585 |
| Official European Union Languages | 0 | - | 4.97 | 236,634 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,709 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,754 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,159 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,171 |
| North America Map Quiz | 0 | - | 4.98 | 244,499 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,252 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,354 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,904 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,388 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,546 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,016 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,566 |
| Slavic Languages | 0 | - | 4.67 | 53,987 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,115 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,425 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 48,902 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,370 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,134 |
| Top World Languages | 0 | - | 4.92 | 813,209 |
| Australian Capitals | 0 | - | 4.92 | 62,594 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,387 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,700 |
| Countries by Official Language | 0 | - | 4.95 | 192,777 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,478 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,980 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,143 |
| Countries in their Native Language | 0 | - | 4.99 | 196,643 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,809 |
| Top World Languages on a Map | 0 | - | 4.93 | 102,247 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.98 | 115,095 |
| Wikipedia Languages | 0 | - | 4.97 | 126,505 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,471 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,372 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,450 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,231 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,547 |
| Asia Map Quiz | 0 | - | 4.99 | 907,121 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,046 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,263 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,639 |
| All Wikipedia Languages | 0 | - | 4.94 | 27,715 |
| Countries of Africa | 0 | - | 5.00 | 2,508,168 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,823 |
| African East Coast | 0 | - | 4.96 | 95,060 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,932 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,809 |
| Australia Map Quiz | 0 | - | 4.94 | 342,508 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,194 |
| New World Crops | 0 | - | 4.33 | 23,502 |
| North American Physical Geography | 0 | - | 4.35 | 30,356 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,406 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,168 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,214 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,019 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,326 |
| Celtic Nations | 0 | - | 4.69 | 46,812 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,544 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,579 |
| The Only European Country ... | 0 | - | 4.91 | 213,870 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,560 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,569 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,483 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,973 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,034 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,299 |
| Top Five Languages by Language Family | 0 | - | 4.99 | 53,361 |
| German-Speaking Countries | 0 | - | 4.89 | 123,506 |
| Italian Name Translation | 0 | - | 4.81 | 45,052 |
| French-Speaking Countries | 0 | - | 4.85 | 268,813 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,437 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,638 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,584 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,286 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,509 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,130 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,481 |
| African Island Countries | 0 | - | 4.96 | 100,800 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,671 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,711 |
| Australian States and Territories | 0 | - | 4.96 | 140,917 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,022 |
| Australia True or False | 0 | - | 4.87 | 56,510 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,248 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,023 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,091 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,521 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,796 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,500 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,242 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,723 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,296 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,362 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,479 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,859 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,860 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,935 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,471 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,274 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,207 |
| Slavic Countries | 0 | - | 4.96 | 110,867 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,050 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,353 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,775 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,427 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,259 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,722 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,502 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,697 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,783 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,165 |
| Countries of the Middle East | 0 | - | 4.96 | 198,945 |
| English Speaking Countries | 0 | - | 4.64 | 356,031 |
| Category Elimination - Official Languages | 0 | - | 4.98 | 69,108 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,253 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,212 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,460 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,162 |
| Australia Country Quiz | 0 | - | 4.43 | 69,285 |
| Flags of North and South America | 0 | - | 4.99 | 367,316 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,294 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,602 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,582 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,808 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,961 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,001 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,876 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,894 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,150 |
| Counties of England | 0 | - | 4.97 | 789,276 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,972 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,653 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,280 |
| English Words Formed by Latin and Greek Roots | 0 | - | 4.46 | 66,892 |
| States of India | 0 | - | 4.94 | 190,114 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,007 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,257 |
| The Only African Country ... | 0 | - | 4.99 | 128,371 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,782 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,078 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,366 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,118 |
| Flags of Oceania | 0 | - | 5.00 | 255,240 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,921 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,439 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,060 |
| Regions of New Zealand | 0 | - | 4.85 | 28,141 |
| The Only American Country ... | 0 | - | 4.92 | 120,766 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,352 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,829 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,984 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,999 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,962 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,346 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,880 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,298 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,082 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,501 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,584 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,663 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,374 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,337 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,046 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,405 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,874 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,226 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,825 |
| Monarchies of Europe | 0 | - | 4.90 | 97,332 |
| European Countries with One Border | 0 | - | 4.97 | 181,643 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,537 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,277 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,961 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,437 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,425 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,123 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,803 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,020 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,216 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,154 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,697 |
| States of Germany | 0 | - | 4.96 | 150,089 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,025 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,526 |
| Regions of Italy | 0 | - | 4.92 | 74,734 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,824 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,362 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,199 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,188 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,930 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,108 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,432 |
| Champions League Winners | 0 | - | 4.92 | 996,453 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,004 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,058 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,369 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,802 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,420 |
