| Australia True or False | 0 | - | 4.86 | 57,199 |
| Australian Capitals | 0 | - | 4.92 | 62,858 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,740 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.95 | 27,798 |
| Australia Country Quiz | 0 | - | 4.43 | 69,883 |
| Australia... or New Zealand? | 0 | - | 4.83 | 62,092 |
| Regions of New Zealand | 0 | - | 4.84 | 28,781 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,967 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,312 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,947 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,615 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,496 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,859 |
| Europe Map Quiz | 0 | - | 5.00 | 4,792,398 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,170 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,455 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 48,314 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,835 |
| Official European Union Languages | 0 | - | 4.97 | 240,229 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,784 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,314 |
| Germany True or False? | 0 | - | 4.61 | 49,059 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,257 |
| Asia Map Quiz | 0 | - | 4.99 | 926,480 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,475 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,584 |
| Word Chain - Australia | 0 | - | 4.38 | 38,259 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,270 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,974 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,153 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,372 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,433 |
| The Only European Country ... | 0 | - | 4.91 | 219,502 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,784 |
| France Multiple Choice | 0 | - | 4.39 | 40,873 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,094 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,126 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,219 |
| African East Coast | 0 | - | 4.96 | 96,907 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,788 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,146 |
| Australia Map Quiz | 0 | - | 4.95 | 346,439 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,193 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,514 |
| Celtic Nations | 0 | - | 4.61 | 47,124 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,905 |
| North Korea... or South Korea? | 0 | - | 4.47 | 81,032 |
| Countries of Africa | 0 | - | 5.00 | 2,563,929 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,743 |
| Australian States and Territories | 0 | - | 4.96 | 143,016 |
| Famous Australians by Description | 0 | - | 4.23 | 28,181 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,536 |
| Australian Slang | 0 | - | 4.24 | 28,756 |
| Flags of North and South America | 0 | - | 4.99 | 377,939 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,070 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,963 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,836 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,158 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,781 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,018 |
| North America Map Quiz | 0 | - | 4.98 | 252,646 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,031 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,947 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,233 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,646 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,233 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,260,866 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,906 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,744 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,495 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,188 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,891 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,119 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,099 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,391 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,701 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,341 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,896 |
| Slavic Countries | 0 | - | 4.96 | 112,484 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,506 |
| Counties of England | 0 | - | 4.97 | 804,030 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,470 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,694 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,913 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,697 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,054 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,291 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,980 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,460 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,193 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,856 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,770 |
| Countries of the Middle East | 0 | - | 4.96 | 203,213 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,797 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,909 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,558 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,881 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,107 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,038 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,659 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 47,271 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,922 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,444 |
| African Island Countries | 0 | - | 4.96 | 102,711 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,828 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,789 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,534 |
| Flags of Oceania | 0 | - | 5.00 | 263,363 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 146,642 |
| The Only American Country ... | 0 | - | 4.92 | 122,331 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,759 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,408 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,935 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,290 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,272 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,948 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,949 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,041 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,168 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,319 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,601 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,081 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,964 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,695 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,810 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,874 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,808 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,596 |
| Monarchies of Europe | 0 | - | 4.90 | 99,010 |
| European Countries with One Border | 0 | - | 4.97 | 183,997 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,703 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 89,048 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,523 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,938 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,991 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,144 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,874 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,562 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,786 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,955 |
| States of Germany | 0 | - | 4.95 | 154,883 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,789 |
| Regions of Italy | 0 | - | 4.92 | 77,233 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,897 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,539 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,877 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,757 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,602 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,247 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,860 |
| Champions League Winners | 0 | - | 4.92 | 1,017,637 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,100 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.90 | 107,044 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,252 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,777 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,867 |
| Monarchies of Asia | 0 | - | 4.97 | 71,591 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,341 |
| Provinces of Turkey | 0 | - | 4.95 | 206,256 |
| Provinces of China | 0 | - | 4.97 | 208,680 |
| Japanese Prefectures | 0 | - | 4.98 | 139,338 |
| States of India | 0 | - | 4.94 | 196,368 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 61,076 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,612 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,550 |
| The Only African Country ... | 0 | - | 4.99 | 129,777 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,437 |
| 10 Easternmost Countries in Africa | 0 | - | 4.98 | 25,237 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,572 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,501 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,963 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 60,521 |
| Literature Multiple Choice #1 | 0 | - | 4.51 | 41,120 |
| Literature Multiple Choice #2 | 0 | - | 4.45 | 34,756 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,994 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,403 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,901 |
| D.R. Congo Country Quiz | 0 | - | 4.88 | 39,634 |
| Palau Country Quiz | 0 | - | 4.89 | 23,159 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,936 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,679 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,932 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,559 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,972 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,634 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,410 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,935 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,885 |
| States of Mexico | 0 | - | 4.96 | 178,630 |
| Mexico States Map Quiz | 0 | - | 4.85 | 105,763 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 105,596 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 55,000 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,707 |
| States of Brazil | 0 | - | 4.98 | 89,997 |
| Central American Countries | 0 | - | 4.98 | 157,503 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,680 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,982 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,578 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,536 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,709 |
