| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,751 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,816 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,569 |
| North America Map Quiz | 0 | - | 4.98 | 250,107 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,882 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,409 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,964 |
| States of Mexico | 0 | - | 4.96 | 177,335 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,240 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,403 |
| States of Brazil | 0 | - | 4.97 | 89,013 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,323 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,328 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,793 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,435 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,513 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,634 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,107 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,868 |
| Australian Capitals | 0 | - | 4.92 | 62,791 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,223 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,480 |
| Official European Union Languages | 0 | - | 4.97 | 239,252 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,318 |
| Europe Map Quiz | 0 | - | 5.00 | 4,776,921 |
| Oceania Map Quiz | 0 | - | 4.98 | 656,985 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,788 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,652 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,834 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,606 |
| Asia Map Quiz | 0 | - | 4.99 | 921,847 |
| Africa Map Quiz | 0 | - | 5.00 | 2,124,427 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,108 |
| Australia Map Quiz | 0 | - | 4.95 | 345,574 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,294 |
| New World Crops | 0 | - | 4.38 | 30,928 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,821 |
| History of Mexico | 0 | - | 4.58 | 15,346 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,777 |
| Word Chain - South America | 0 | - | 4.51 | 23,957 |
| North American Physical Geography | 0 | - | 4.35 | 30,442 |
| United States Map Quiz | 0 | - | 4.98 | 4,166,126 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,463 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,400 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,693 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,105 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,196 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,801 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,055 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,487 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,180 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 116,473 |
| The Only European Country ... | 0 | - | 4.91 | 218,002 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,984 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,969 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,584 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,737 |
| Countries of Africa | 0 | - | 5.00 | 2,550,093 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,487 |
| African East Coast | 0 | - | 4.96 | 96,462 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,332 |
| Australian States and Territories | 0 | - | 4.96 | 142,484 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,415 |
| Australia True or False | 0 | - | 4.87 | 57,023 |
| Flags of North and South America | 0 | - | 4.99 | 375,275 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,304 |
| South America Map Quiz | 0 | - | 5.00 | 1,553,046 |
| South American Physical Geography | 0 | - | 4.58 | 18,383 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,027,657 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,604 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,578 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,027 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,458 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,251,791 |
| Celtic Nations | 0 | - | 4.69 | 47,042 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,332,510 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,181 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,742 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,938 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,526 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,807 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,860 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 174,351 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,924 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,797 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,552 |
| Slavic Countries | 0 | - | 4.96 | 112,082 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,560 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,285 |
| Counties of England | 0 | - | 4.97 | 800,422 |
| Flags of Asia Quiz | 0 | - | 4.99 | 617,362 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,549 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,253 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,616 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,869 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,445 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,998 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,806 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,090 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,309 |
| Countries of the Middle East | 0 | - | 4.96 | 202,066 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,655 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,343 |
| Flags of Africa Quiz | 0 | - | 5.00 | 474,837 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,908 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,214 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,961 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,873 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,170 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,787 |
| African Island Countries | 0 | - | 4.96 | 102,133 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,168 |
| Flags of Oceania | 0 | - | 5.00 | 261,325 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,501 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,168 |
| Australia Country Quiz | 0 | - | 4.43 | 69,738 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,814 |
| Regions of New Zealand | 0 | - | 4.84 | 28,637 |
| The Only American Country ... | 0 | - | 4.92 | 121,957 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,417 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,054 |
| South American Geography Quiz #2 | 0 | - | 4.40 | 42,946 |
| Famous People from South America | 0 | - | 4.15 | 22,036 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,390 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,379 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,557 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,711 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,488 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,741 |
| The U.S. Pledge of Allegiance | 0 | - | 4.00 | 18,388 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,650 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,130 |
| US States Quiz | 0 | - | 5.00 | 16,945,497 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,854 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,310 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,279 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,222 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,102 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,023 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,524 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,658 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,166 |
| Monarchies of Europe | 0 | - | 4.90 | 98,512 |
| European Countries with One Border | 0 | - | 4.97 | 183,366 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,135 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,960 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,485 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,256 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,059 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,411 |
| States of Germany | 0 | - | 4.95 | 153,750 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,433 |
| Regions of Italy | 0 | - | 4.92 | 76,517 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,568 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,811 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,525 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,656 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,296 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,472 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,783 |
| Champions League Winners | 0 | - | 4.92 | 1,011,891 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,786 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,487 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,773 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,840 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,557 |
| Monarchies of Asia | 0 | - | 4.97 | 71,337 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,124 |
| Provinces of Turkey | 0 | - | 4.94 | 205,097 |
| Provinces of China | 0 | - | 4.97 | 206,428 |
| Japanese Prefectures | 0 | - | 4.98 | 138,190 |
| States of India | 0 | - | 4.95 | 194,841 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,858 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,462 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,134 |
| The Only African Country ... | 0 | - | 4.99 | 129,426 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,286 |
| 10 Easternmost Countries in Africa | 0 | - | 4.98 | 23,607 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,209 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,613 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,547 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 58,964 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,683 |
| Eswatini Country Quiz | 0 | - | 4.85 | 20,881 |
| Botswana Country Quiz | 0 | - | 4.90 | 22,594 |
| Lesotho Country Quiz | 0 | - | 4.83 | 20,649 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,856 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 64,055 |
| D.R. Congo Country Quiz | 0 | - | 4.88 | 39,490 |
| Gabon Country Quiz | 0 | - | 4.83 | 18,615 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,710 |
| Palau Country Quiz | 0 | - | 4.90 | 23,086 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,752 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,410 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,261 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,182 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,506 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,896 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,570 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,515 |
