| Uruguay Country Quiz | 0 | - | 4.84 | 31,616 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,674 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,313 |
| North America Map Quiz | 0 | - | 4.98 | 248,942 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,772 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,245 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,760 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,053 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,426 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,275 |
| States of Mexico | 0 | - | 4.96 | 176,447 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,006 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,049 |
| States of Brazil | 0 | - | 4.97 | 88,342 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,415 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,722 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,747 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 220,446 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,381 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,564 |
| Australian Capitals | 0 | - | 4.92 | 62,734 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,236 |
| Official European Union Languages | 0 | - | 4.97 | 238,710 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,989 |
| Europe Map Quiz | 0 | - | 5.00 | 4,767,090 |
| Africa Map Quiz | 0 | - | 5.00 | 2,119,939 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,194 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 94,072 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,586 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,026 |
| Asia Map Quiz | 0 | - | 4.99 | 918,038 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,784 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,569 |
| Countries of Africa | 0 | - | 5.00 | 2,541,145 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,975 |
| African East Coast | 0 | - | 4.96 | 96,155 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,034 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,812 |
| Australia Map Quiz | 0 | - | 4.95 | 344,864 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,275 |
| New World Crops | 0 | - | 4.38 | 30,897 |
| North American Physical Geography | 0 | - | 4.35 | 30,425 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,446 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,548 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,706 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,299 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,764 |
| Celtic Nations | 0 | - | 4.69 | 46,967 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,042 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,459 |
| The Only European Country ... | 0 | - | 4.91 | 217,031 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,368 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,868 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,110 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,383,990 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,031 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,175 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,691 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,356 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,354 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,683 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,236 |
| African Island Countries | 0 | - | 4.96 | 101,747 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,624 |
| Australian States and Territories | 0 | - | 4.96 | 142,129 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,328 |
| Australia True or False | 0 | - | 4.87 | 56,917 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,779 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,956 |
| History of Mexico | 0 | - | 4.58 | 15,322 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,373 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,591 |
| Word Chain - South America | 0 | - | 4.51 | 23,917 |
| United States Map Quiz | 0 | - | 4.98 | 4,161,516 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,337 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,651 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,050 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,923 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,409 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,788 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,315 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,038 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,263 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,454 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,894 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,391 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,435 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,429 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,306 |
| Slavic Countries | 0 | - | 4.96 | 111,778 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,396 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,123 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,318 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,858 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,268 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,098 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,041 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,617 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,552 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,577 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,032 |
| Countries of the Middle East | 0 | - | 4.96 | 201,372 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,561 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,289 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,704 |
| Australia Country Quiz | 0 | - | 4.43 | 69,639 |
| Flags of North and South America | 0 | - | 4.99 | 373,751 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,801 |
| South American Physical Geography | 0 | - | 4.58 | 18,359 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,024,592 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,147 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,022 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,246,369 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,804 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,532 |
| Counties of England | 0 | - | 4.97 | 797,924 |
| Flags of Asia Quiz | 0 | - | 4.99 | 614,647 |
| States of India | 0 | - | 4.95 | 193,753 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,365 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,833 |
| The Only African Country ... | 0 | - | 4.99 | 129,205 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,164 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,956 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 322,538 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,295 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 58,023 |
| Flags of Oceania | 0 | - | 5.00 | 259,944 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,384 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 145,565 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,637 |
| Regions of New Zealand | 0 | - | 4.84 | 28,552 |
| The Only American Country ... | 0 | - | 4.92 | 121,722 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,206 |
| Famous People from South America | 0 | - | 4.15 | 22,001 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,652 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 58,080 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,297 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,545 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,610 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,550 |
| The U.S. Pledge of Allegiance | 0 | - | 3.99 | 18,369 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,234 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,997 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,817 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,146 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,967 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,701 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,521 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,245 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,887 |
| Monarchies of Europe | 0 | - | 4.90 | 98,242 |
| European Countries with One Border | 0 | - | 4.97 | 182,956 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,738 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,749 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,576 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,656 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,983 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,631 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,979 |
| States of Germany | 0 | - | 4.95 | 152,888 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,166 |
| Regions of Italy | 0 | - | 4.92 | 76,083 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,296 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,181 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,296 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,877 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,068 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,887 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,724 |
| Champions League Winners | 0 | - | 4.91 | 1,008,339 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,576 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,121 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,414 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,109 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,312 |
| Monarchies of Asia | 0 | - | 4.97 | 71,150 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,956 |
| Provinces of Turkey | 0 | - | 4.95 | 204,435 |
| Provinces of China | 0 | - | 4.97 | 205,033 |
| Japanese Prefectures | 0 | - | 4.98 | 137,287 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,928 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,978 |
| States of India Map Quiz | 0 | - | 4.83 | 26,566 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,297 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,771 |
| African Great Lakes | 0 | - | 4.82 | 66,337 |
| Word Chain - Africa | 0 | - | 4.47 | 31,635 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,695 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,708 |
| Name a Valid African Country | 0 | - | 4.98 | 154,226 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,831 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,107 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,546 |
| D.R. Congo Country Quiz | 0 | - | 4.87 | 39,401 |
| Palau Country Quiz | 0 | - | 4.90 | 23,040 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,627 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,196 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,038 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,464 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,838 |
