| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,760 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,860 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,636 |
| North America Map Quiz | 0 | - | 4.98 | 250,642 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,918 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,459 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,024 |
| States of Mexico | 0 | - | 4.96 | 177,633 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,315 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,531 |
| States of Brazil | 0 | - | 4.97 | 89,203 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,339 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,695 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,814 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,798 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,565 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,652 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,291 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,031 |
| Australian Capitals | 0 | - | 4.92 | 62,804 |
| Name a Valid Answer - United States #1 | 0 | - | 4.62 | 94,286 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,553 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,572 |
| Official European Union Languages | 0 | - | 4.97 | 239,428 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,437 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,550 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,860 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,788 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,678 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,165 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,059 |
| Asia Map Quiz | 0 | - | 4.99 | 922,981 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,895 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,251 |
| Australia Map Quiz | 0 | - | 4.95 | 345,751 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,302 |
| New World Crops | 0 | - | 4.38 | 30,937 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,833 |
| History of Mexico | 0 | - | 4.52 | 15,354 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,393 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,817 |
| Word Chain - South America | 0 | - | 4.51 | 23,969 |
| North American Physical Geography | 0 | - | 4.35 | 30,451 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,709 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,468 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,414 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,702 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,136 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,424 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,834 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,262 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,703 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,219 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,730 |
| The Only European Country ... | 0 | - | 4.91 | 218,334 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,141 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,994 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,681 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,201 |
| Countries of Africa | 0 | - | 5.00 | 2,552,797 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,614 |
| African East Coast | 0 | - | 4.96 | 96,547 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,415 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,469 |
| Australian States and Territories | 0 | - | 4.96 | 142,603 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,445 |
| Australia True or False | 0 | - | 4.87 | 57,066 |
| Flags of North and South America | 0 | - | 4.99 | 375,844 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,388 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,062 |
| South American Physical Geography | 0 | - | 4.58 | 18,386 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,889 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,130 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,144 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,078 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,689 |
| Celtic Nations | 0 | - | 4.61 | 47,061 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,603 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,280 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,829 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,201 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,607 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,885 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,160 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,915 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,064 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,933 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,640 |
| Slavic Countries | 0 | - | 4.96 | 112,180 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,615 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,338 |
| Counties of England | 0 | - | 4.97 | 801,228 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,053 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,201 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,615 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,350 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,715 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,988 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,566 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,103 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,892 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,257 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,410 |
| Countries of the Middle East | 0 | - | 4.96 | 202,254 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,679 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,397 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,705 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,058 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,304 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,072 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,964 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,309 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,922 |
| African Island Countries | 0 | - | 4.96 | 102,234 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,304 |
| Flags of Oceania | 0 | - | 5.00 | 261,813 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,542 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,283 |
| Australia Country Quiz | 0 | - | 4.43 | 69,778 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,879 |
| Regions of New Zealand | 0 | - | 4.84 | 28,664 |
| The Only American Country ... | 0 | - | 4.92 | 122,050 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,501 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,062 |
| Famous People from South America | 0 | - | 4.15 | 22,049 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,179 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,611 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,690 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,765 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,598 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,804 |
| The U.S. Pledge of Allegiance | 0 | - | 4.00 | 18,396 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 74,780 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,172 |
| US States Quiz | 0 | - | 5.00 | 16,961,629 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,867 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,373 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,555 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,317 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,229 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,195 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,608 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,691 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,279 |
| Monarchies of Europe | 0 | - | 4.90 | 98,639 |
| European Countries with One Border | 0 | - | 4.97 | 183,503 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,242 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,261 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,076 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,901 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,320 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,351 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,525 |
| States of Germany | 0 | - | 4.95 | 153,979 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,525 |
| Regions of Italy | 0 | - | 4.92 | 76,679 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,646 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,993 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,605 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,909 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,373 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,656 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,805 |
| Champions League Winners | 0 | - | 4.92 | 1,013,079 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,876 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,594 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,880 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,017 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,637 |
| Monarchies of Asia | 0 | - | 4.97 | 71,381 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,185 |
| Provinces of Turkey | 0 | - | 4.94 | 205,386 |
| Provinces of China | 0 | - | 4.97 | 206,954 |
| Japanese Prefectures | 0 | - | 4.98 | 138,469 |
| States of India | 0 | - | 4.95 | 195,192 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,912 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,501 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,186 |
| The Only African Country ... | 0 | - | 4.99 | 129,507 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,314 |
| 10 Easternmost Countries in Africa | 0 | - | 4.97 | 24,624 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,278 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,797 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,622 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 59,225 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,733 |
| Eswatini Country Quiz | 0 | - | 4.85 | 20,899 |
| Botswana Country Quiz | 0 | - | 4.90 | 22,616 |
| Lesotho Country Quiz | 0 | - | 4.83 | 20,666 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,867 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 64,075 |
| D.R. Congo Country Quiz | 0 | - | 4.88 | 39,519 |
| Gabon Country Quiz | 0 | - | 4.83 | 18,628 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,754 |
| Palau Country Quiz | 0 | - | 4.90 | 23,105 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,805 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,473 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,344 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,285 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,519 |
