| Australia True or False | 0 | - | 4.86 | 57,198 |
| Australian Capitals | 0 | - | 4.92 | 62,858 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,737 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.95 | 27,797 |
| Australia Country Quiz | 0 | - | 4.43 | 69,883 |
| Australia... or New Zealand? | 0 | - | 4.83 | 62,089 |
| Regions of New Zealand | 0 | - | 4.84 | 28,779 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,946 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,300 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,943 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,609 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,493 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,859 |
| Europe Map Quiz | 0 | - | 5.00 | 4,792,285 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,145 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,454 |
| 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 | 240,195 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,780 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,301 |
| Germany True or False? | 0 | - | 4.61 | 49,059 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,238 |
| Asia Map Quiz | 0 | - | 4.99 | 926,432 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,421 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,580 |
| Word Chain - Australia | 0 | - | 4.38 | 38,259 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,262 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,972 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,138 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,371 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,427 |
| The Only European Country ... | 0 | - | 4.91 | 219,490 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,779 |
| France Multiple Choice | 0 | - | 4.39 | 40,872 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,093 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,121 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,215 |
| African East Coast | 0 | - | 4.96 | 96,903 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,783 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,146 |
| Australia Map Quiz | 0 | - | 4.95 | 346,432 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,152 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,504 |
| Celtic Nations | 0 | - | 4.61 | 47,124 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,893 |
| North Korea... or South Korea? | 0 | - | 4.47 | 81,031 |
| Countries of Africa | 0 | - | 5.00 | 2,563,786 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,743 |
| Australian States and Territories | 0 | - | 4.96 | 143,009 |
| Famous Australians by Description | 0 | - | 4.23 | 28,180 |
| 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 | 377,911 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,068 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,962 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,831 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,132 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,780 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,990 |
| North America Map Quiz | 0 | - | 4.98 | 252,632 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,031 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,933 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,214 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,643 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,232 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,260,810 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,884 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,738 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,493 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,181 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,888 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,116 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,093 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,383 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,693 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,338 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,894 |
| Slavic Countries | 0 | - | 4.96 | 112,481 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,505 |
| Counties of England | 0 | - | 4.97 | 804,009 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,462 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,673 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,911 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,693 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,052 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,289 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,977 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,457 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,190 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,853 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,767 |
| Countries of the Middle East | 0 | - | 4.96 | 203,207 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,796 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,908 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,558 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,843 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,096 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,035 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,656 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 47,232 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,908 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,441 |
| African Island Countries | 0 | - | 4.96 | 102,705 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,823 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,788 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,534 |
| Flags of Oceania | 0 | - | 5.00 | 263,350 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 146,641 |
| The Only American Country ... | 0 | - | 4.92 | 122,330 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,756 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,393 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,934 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,289 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,270 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,947 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,946 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,038 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,164 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,316 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,601 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,079 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,962 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,691 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,803 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,870 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,804 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,593 |
| Monarchies of Europe | 0 | - | 4.90 | 99,004 |
| European Countries with One Border | 0 | - | 4.97 | 183,993 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,698 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 89,046 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,521 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,931 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,988 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,140 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,867 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,560 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,783 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,946 |
| States of Germany | 0 | - | 4.95 | 154,867 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,788 |
| Regions of Italy | 0 | - | 4.92 | 77,231 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,894 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,534 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,874 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,750 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,596 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,243 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,860 |
| Champions League Winners | 0 | - | 4.92 | 1,017,603 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,099 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.90 | 107,040 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,245 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,769 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,864 |
| Monarchies of Asia | 0 | - | 4.97 | 71,588 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,340 |
| Provinces of Turkey | 0 | - | 4.95 | 206,246 |
| Provinces of China | 0 | - | 4.97 | 208,665 |
| Japanese Prefectures | 0 | - | 4.98 | 139,329 |
| States of India | 0 | - | 4.94 | 196,361 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 61,074 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,612 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,547 |
| The Only African Country ... | 0 | - | 4.99 | 129,777 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,435 |
| 10 Easternmost Countries in Africa | 0 | - | 4.98 | 25,236 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,568 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,495 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,963 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 60,512 |
| Literature Multiple Choice #1 | 0 | - | 4.51 | 41,119 |
| Literature Multiple Choice #2 | 0 | - | 4.45 | 34,753 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,991 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,400 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,900 |
| 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 | 69,678 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,928 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,558 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,972 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,633 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,410 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,934 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,883 |
| States of Mexico | 0 | - | 4.96 | 178,625 |
| Mexico States Map Quiz | 0 | - | 4.85 | 105,756 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 105,594 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 55,000 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,706 |
| States of Brazil | 0 | - | 4.98 | 89,992 |
| Central American Countries | 0 | - | 4.98 | 157,502 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,677 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,970 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,572 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,533 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,704 |
