| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,735 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,727 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,425 |
| North America Map Quiz | 0 | - | 4.98 | 249,581 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,814 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,324 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,884 |
| States of Mexico | 0 | - | 4.96 | 176,869 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,143 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,220 |
| States of Brazil | 0 | - | 4.97 | 88,705 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,302 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,737 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,775 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 220,928 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,444 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,593 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,748 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,644 |
| Australian Capitals | 0 | - | 4.92 | 62,760 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,153 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,351 |
| Official European Union Languages | 0 | - | 4.97 | 238,973 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,164 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,495 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,456 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,607 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,189 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,852 |
| Asia Map Quiz | 0 | - | 4.99 | 920,018 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,303 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,981 |
| Australia Map Quiz | 0 | - | 4.95 | 345,260 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,284 |
| New World Crops | 0 | - | 4.38 | 30,919 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,803 |
| History of Mexico | 0 | - | 4.58 | 15,339 |
| South American Geography Quiz #2 | 0 | - | 4.37 | 40,608 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,642 |
| Word Chain - South America | 0 | - | 4.51 | 23,940 |
| North American Physical Geography | 0 | - | 4.35 | 30,438 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,030 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,453 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,371 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,676 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,080 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,870 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,746 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,650 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,128 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,122 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,750 |
| The Only European Country ... | 0 | - | 4.91 | 217,496 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,641 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,921 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,357 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,035 |
| Countries of Africa | 0 | - | 5.00 | 2,546,059 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,142 |
| African East Coast | 0 | - | 4.96 | 96,316 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,182 |
| Australian States and Territories | 0 | - | 4.96 | 142,270 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,373 |
| Australia True or False | 0 | - | 4.87 | 56,963 |
| Flags of North and South America | 0 | - | 4.99 | 374,515 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,146 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,040 |
| South American Physical Geography | 0 | - | 4.58 | 18,369 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,236 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,845 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,906 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,975 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,435 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,189 |
| Celtic Nations | 0 | - | 4.69 | 47,003 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,084 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,961 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,471 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,480 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,383 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,558 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,489 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,362 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,692 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,611 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,444 |
| Slavic Countries | 0 | - | 4.96 | 111,923 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,490 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,216 |
| Counties of England | 0 | - | 4.97 | 799,180 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,170 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,434 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,061 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,392 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,250 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,280 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,830 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,676 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,850 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,154 |
| Countries of the Middle East | 0 | - | 4.96 | 201,762 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,610 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,114 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,487 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,412 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,819 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,520 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,456 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,895 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,501 |
| African Island Countries | 0 | - | 4.96 | 101,904 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,921 |
| Flags of Oceania | 0 | - | 5.00 | 260,698 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,444 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 145,778 |
| Australia Country Quiz | 0 | - | 4.43 | 69,679 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,724 |
| Regions of New Zealand | 0 | - | 4.84 | 28,600 |
| The Only American Country ... | 0 | - | 4.92 | 121,841 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,302 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 17,041 |
| Famous People from South America | 0 | - | 4.15 | 22,023 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,028 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,240 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,434 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,628 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,780 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,630 |
| The U.S. Pledge of Allegiance | 0 | - | 3.99 | 18,381 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,433 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,048 |
| US States Quiz | 0 | - | 5.00 | 16,923,460 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,838 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,237 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,978 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,071 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,891 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,765 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,420 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,592 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,028 |
| Monarchies of Europe | 0 | - | 4.90 | 98,379 |
| European Countries with One Border | 0 | - | 4.97 | 183,160 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,939 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,790 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,105 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,130 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,893 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,254 |
| States of Germany | 0 | - | 4.95 | 153,301 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,309 |
| Regions of Italy | 0 | - | 4.92 | 76,304 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,460 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,470 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,433 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,273 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,180 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,264 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,760 |
| Champions League Winners | 0 | - | 4.92 | 1,010,208 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,744 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,296 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,595 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,556 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,417 |
| Monarchies of Asia | 0 | - | 4.97 | 71,249 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,043 |
| Provinces of Turkey | 0 | - | 4.94 | 204,737 |
| Provinces of China | 0 | - | 4.97 | 205,828 |
| Japanese Prefectures | 0 | - | 4.98 | 137,776 |
| States of India | 0 | - | 4.95 | 194,247 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,782 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,405 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,902 |
| The Only African Country ... | 0 | - | 4.99 | 129,296 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,224 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,097 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,301 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,429 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 58,515 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,601 |
| Eswatini Country Quiz | 0 | - | 4.85 | 20,863 |
| Botswana Country Quiz | 0 | - | 4.90 | 22,571 |
| Lesotho Country Quiz | 0 | - | 4.83 | 20,634 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,824 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 64,026 |
| D.R. Congo Country Quiz | 0 | - | 4.88 | 39,439 |
| Gabon Country Quiz | 0 | - | 4.83 | 18,597 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,641 |
| Palau Country Quiz | 0 | - | 4.90 | 23,060 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,694 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,297 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,165 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,043 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,485 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,872 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,557 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,478 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,511 |
