| Uruguay Country Quiz | 0 | - | 4.83 | 31,331 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,115 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,081 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,595 |
| North America Map Quiz | 0 | - | 4.98 | 244,053 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,345 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,545 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 93,829 |
| States of Mexico | 0 | - | 4.95 | 173,059 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,056 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,792 |
| States of Brazil | 0 | - | 4.98 | 86,230 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 48,996 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,033 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,562 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,359 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,337 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 48,851 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,344 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,941 |
| Australian Capitals | 0 | - | 4.92 | 62,586 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 93,382 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,376 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,530 |
| Official European Union Languages | 0 | - | 4.97 | 236,369 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,607 |
| Europe Map Quiz | 0 | - | 5.00 | 4,727,834 |
| Africa Map Quiz | 0 | - | 5.00 | 2,102,928 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,533 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| Native American Tribes in the US | 0 | - | 4.70 | 25,251 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,897 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,262 |
| Asia Map Quiz | 0 | - | 4.99 | 905,983 |
| Countries of Africa | 0 | - | 5.00 | 2,504,845 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,729 |
| African East Coast | 0 | - | 4.96 | 94,940 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,806 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,725 |
| Australia Map Quiz | 0 | - | 4.94 | 342,257 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,189 |
| New World Crops | 0 | - | 4.33 | 23,497 |
| Hispanic Last Names in the U.S. | 0 | - | 4.30 | 54,604 |
| History of Mexico | 0 | - | 4.58 | 15,218 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,174 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,455 |
| Word Chain - South America | 0 | - | 4.51 | 23,755 |
| North American Physical Geography | 0 | - | 4.35 | 30,351 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,873 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,402 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,063 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,509 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,771 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,859 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,158 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,755 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,083 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,487 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,355 |
| The Only European Country ... | 0 | - | 4.91 | 213,531 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,343 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,531 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,332 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,374,945 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,290 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,333 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,491 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,474 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,164 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,433 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,938 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,267 |
| African Island Countries | 0 | - | 4.96 | 100,672 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,463 |
| Australian States and Territories | 0 | - | 4.95 | 140,557 |
| Australian Immigration by Country | 0 | - | 4.81 | 76,990 |
| Australia True or False | 0 | - | 4.87 | 56,469 |
| Flags of North and South America | 0 | - | 4.99 | 365,736 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 127,962 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,381 |
| South American Physical Geography | 0 | - | 4.58 | 18,263 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,561 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,360 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,386 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,460 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,226 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,402 |
| Celtic Nations | 0 | - | 4.69 | 46,797 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,690 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,593 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,204 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,068 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,406 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,786 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,585 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,576 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,192 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,162 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,077 |
| Slavic Countries | 0 | - | 4.96 | 110,775 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,015 |
| Counties of England | 0 | - | 4.97 | 788,430 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,613 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,271 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,678 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,324 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,142 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,597 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,371 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 70,603 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,625 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,028 |
| Countries of the Middle East | 0 | - | 4.96 | 198,722 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,217 |
| States of India | 0 | - | 4.94 | 189,727 |
| 10 African Countries with the Most Tourists | 0 | - | 4.38 | 60,104 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,974 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,206 |
| The Only African Country ... | 0 | - | 4.99 | 128,274 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,737 |
| Pixelated Africa Map | 0 | - | 4.98 | 98,970 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,201 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,021 |
| Flags of Oceania | 0 | - | 5.00 | 254,678 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 26,882 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,309 |
| Australia Country Quiz | 0 | - | 4.43 | 69,237 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,017 |
| Regions of New Zealand | 0 | - | 4.85 | 28,102 |
| The Only American Country ... | 0 | - | 4.92 | 120,668 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,271 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,955 |
| Famous People from South America | 0 | - | 4.15 | 21,772 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,530 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,873 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,802 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,860 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,184 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,768 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,279 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,974 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,441 |
| US States Quiz | 0 | - | 5.00 | 16,681,568 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,647 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 104,301 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,270 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,969 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,235 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,677 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,118 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,100 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,668 |
| Monarchies of Europe | 0 | - | 4.90 | 97,222 |
| European Countries with One Border | 0 | - | 4.97 | 181,478 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 177,985 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,129 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,790 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,632 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,105 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,014 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,568 |
| States of Germany | 0 | - | 4.96 | 149,813 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,919 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,486 |
| Regions of Italy | 0 | - | 4.92 | 74,605 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,740 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,151 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,063 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,934 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,848 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,962 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,393 |
| Champions League Winners | 0 | - | 4.92 | 995,200 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,931 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 104,932 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,255 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,569 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,300 |
| Monarchies of Asia | 0 | - | 4.97 | 70,544 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,382 |
| Provinces of Turkey | 0 | - | 4.95 | 200,123 |
| Provinces of China | 0 | - | 4.97 | 199,737 |
| Japanese Prefectures | 0 | - | 4.98 | 134,313 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,129 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,723 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,610 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 92,727 |
| Kazakhstan Country Quiz | 0 | - | 4.83 | 30,417 |
| Bhutan Country Quiz | 0 | - | 4.87 | 23,993 |
| States of India Map Quiz | 0 | - | 4.82 | 25,987 |
| Countries Bordering India | 0 | - | 4.98 | 162,543 |
| Countries Closest to India | 0 | - | 4.96 | 102,149 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,714 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,285 |
| African Great Lakes | 0 | - | 4.82 | 65,046 |
| Every African Country Shape | 0 | - | 4.90 | 85,874 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,792 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,131 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,301 |
| Name a Valid African Country | 0 | - | 4.98 | 152,828 |
