| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,943 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,618 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,889 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,777 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,457 |
| Australian Capitals | 0 | - | 4.92 | 62,837 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,759 |
| Official European Union Languages | 0 | - | 4.97 | 239,856 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,686 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,299 |
| Years in History #1 - Multiple Choice | 0 | - | 4.82 | 70,653 |
| Multiple Choice Geography #3 | 0 | - | 4.81 | 74,601 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,638 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,019 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,700 |
| Asia Map Quiz | 0 | - | 4.99 | 925,497 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,166 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,487 |
| Australia Map Quiz | 0 | - | 4.95 | 346,229 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,030 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,899 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,309 |
| Celtic Nations | 0 | - | 4.61 | 47,105 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,330 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,220 |
| The Only European Country ... | 0 | - | 4.91 | 219,161 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,593 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,064 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,989 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,454 |
| Countries of Africa | 0 | - | 5.00 | 2,561,107 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,020 |
| African East Coast | 0 | - | 4.96 | 96,803 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,660 |
| Historical Events - AD or BC? | 0 | - | 4.70 | 57,854 |
| Science Multiple Choice #1 | 0 | - | 4.53 | 86,995 |
| Northern Hemisphere... or Southern Hemisphere? | 0 | - | 4.95 | 111,481 |
| Australian States and Territories | 0 | - | 4.96 | 142,893 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,509 |
| Australia True or False | 0 | - | 4.87 | 57,160 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,014 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,873 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,692 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,762 |
| North America Map Quiz | 0 | - | 4.98 | 252,212 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,992 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,909 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,585 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,195 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,512 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,597 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,114 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,918 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,802 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,044 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,841 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,988 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,519 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,225 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,816 |
| Slavic Countries | 0 | - | 4.96 | 112,406 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,703 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,467 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,850 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,582 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,959 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,196 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,861 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,350 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,110 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,680 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.92 | 50,637 |
| Countries of the Middle East | 0 | - | 4.96 | 203,008 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,756 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,524 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,768 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,879 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,446 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 42,703 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,720 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,302 |
| African Island Countries | 0 | - | 4.96 | 102,567 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,679 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,728 |
| Australia Country Quiz | 0 | - | 4.43 | 69,844 |
| Flags of North and South America | 0 | - | 4.99 | 377,256 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,969 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,969 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,410 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,752 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,825 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,047 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,759 |
| Counties of England | 0 | - | 4.97 | 803,223 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,891 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,688 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,956 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 61,036 |
| Literature Multiple Choice #1 | 0 | - | 4.51 | 41,082 |
| Drink It, Play It, or Spend It | 0 | - | 4.44 | 28,512 |
| Which Came First? | 0 | - | 4.37 | 75,052 |
| Literature Multiple Choice #2 | 0 | - | 4.45 | 34,723 |
| Diseases: Virus... or Bacteria? | 0 | - | 4.61 | 38,963 |
| Multiple Choice Animal Quiz #1 | 0 | - | 4.50 | 56,365 |
| Science Multiple Choice #2 | 0 | - | 4.37 | 36,766 |
| Geography True or False #2 | 0 | - | 4.41 | 88,304 |
| Geography True or False #3 | 0 | - | 4.42 | 78,432 |
| Geography True or False #4 | 0 | - | 4.49 | 82,470 |
| Geography True or False #1 | 0 | - | 4.48 | 123,630 |
| History Multiple Choice #1 | 0 | - | 4.41 | 82,340 |
| Years in History #2 - Multiple Choice | 0 | - | 4.42 | 41,803 |
| History Multiple Choice #2 | 0 | - | 4.43 | 50,213 |
| History Multiple Choice #3 | 0 | - | 4.45 | 48,898 |
| History Multiple Choice #5 | 0 | - | 4.49 | 32,607 |
| Multiple Choice Geography #1 | 0 | - | 4.77 | 136,904 |
| Multiple Choice Geography #2 | 0 | - | 4.46 | 90,111 |
| Movie Quotes Multiple Choice #1 | 0 | - | 4.46 | 33,928 |
| Flags of Oceania | 0 | - | 5.00 | 262,884 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.95 | 27,744 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 146,559 |
| Australia... or New Zealand? | 0 | - | 4.83 | 62,029 |
| Regions of New Zealand | 0 | - | 4.84 | 28,752 |
| The Only American Country ... | 0 | - | 4.92 | 122,235 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,690 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,089 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,848 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,215 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,130 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,904 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,847 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,971 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,046 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,284 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,534 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,006 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,866 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,568 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,641 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,796 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,503 |
| Monarchies of Europe | 0 | - | 4.90 | 98,906 |
| European Countries with One Border | 0 | - | 4.97 | 183,853 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,573 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,920 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,416 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,568 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,884 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,009 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,595 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,496 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,678 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,843 |
| States of Germany | 0 | - | 4.95 | 154,605 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,713 |
| Regions of Italy | 0 | - | 4.92 | 77,125 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,821 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,368 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,780 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,529 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,551 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,096 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Champions League Winners | 0 | - | 4.92 | 1,016,540 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,061 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,903 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,134 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,577 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,797 |
| Monarchies of Asia | 0 | - | 4.97 | 71,521 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,299 |
| Provinces of Turkey | 0 | - | 4.95 | 206,006 |
| Provinces of China | 0 | - | 4.97 | 208,155 |
| Japanese Prefectures | 0 | - | 4.99 | 139,090 |
| States of India | 0 | - | 4.94 | 195,975 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,587 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,422 |
| The Only African Country ... | 0 | - | 4.99 | 129,704 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,398 |
| 10 Easternmost Countries in Africa | 0 | - | 4.98 | 25,141 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,480 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,271 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,879 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 60,110 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,846 |
| D.R. Congo Country Quiz | 0 | - | 4.88 | 39,597 |
| Palau Country Quiz | 0 | - | 4.89 | 23,148 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,908 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,626 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,846 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,554 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,956 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,624 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,390 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,866 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,826 |
| States of Mexico | 0 | - | 4.96 | 178,347 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,682 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,520 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 54,906 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,638 |
