| Australian Capitals | 0 | - | 4.92 | 62,861 |
| Countries by National Anthem | 0 | - | 4.92 | 71,434 |
| Australia True or False | 0 | - | 4.87 | 57,211 |
| Non-Stop Flights to New Zealand | 0 | - | 4.46 | 48,319 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.95 | 27,802 |
| Regions of New Zealand | 0 | - | 4.84 | 28,799 |
| Australia Country Quiz | 0 | - | 4.43 | 69,885 |
| Twelve Days of Christmas | 0 | - | 4.45 | 146,311 |
| Rudolph the Red-Nosed Reindeer | 0 | - | 4.53 | 76,483 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,012 |
| New Zealand Country Quiz | 0 | - | 4.70 | 76,388 |
| Europe Map Quiz | 0 | - | 5.00 | 4,792,942 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,682 |
| Elton John Quiz | 0 | - | 4.49 | 18,533 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,978 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,998 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,640 |
| Christmas Song Lyrics | 0 | - | 4.19 | 70,810 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,274 |
| Word Chain - Australia | 0 | - | 4.38 | 38,260 |
| America the Beautiful Lyrics | 0 | - | 4.27 | 19,799 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,853 |
| Official European Union Languages | 0 | - | 4.97 | 240,358 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,806 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,378 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,346 |
| Asia Map Quiz | 0 | - | 4.99 | 926,647 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,649 |
| First Lines of Christmas Songs | 0 | - | 4.27 | 151,198 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,147 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,594 |
| Australia Map Quiz | 0 | - | 4.95 | 346,475 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,407 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,318 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,982 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,198 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,574 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,378 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,466 |
| The Only European Country ... | 0 | - | 4.91 | 219,548 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,807 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,099 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,148 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,097 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,160 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,988 |
| Countries of Africa | 0 | - | 5.00 | 2,564,450 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,242 |
| African East Coast | 0 | - | 4.96 | 96,921 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,802 |
| Christmas Carol Lyrics | 0 | - | 4.20 | 12,549 |
| Flags of Oceania | 0 | - | 5.00 | 263,440 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,744 |
| Australian States and Territories | 0 | - | 4.96 | 143,054 |
| Famous Australians by Description | 0 | - | 4.23 | 28,185 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 146,675 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,544 |
| Australian Slang | 0 | - | 4.24 | 28,758 |
| Flags of North and South America | 0 | - | 4.99 | 378,088 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,076 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,965 |
| The Only American Country ... | 0 | - | 4.92 | 122,342 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,768 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,852 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,290 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,784 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,445 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,174 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,950 |
| North America Map Quiz | 0 | - | 4.98 | 252,728 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,298 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,295 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,956 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,960 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,038 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,053 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,185 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,080 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,328 |
| US States Quiz | 0 | - | 5.00 | 17,020,790 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,059 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,305 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,951 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,656 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,609 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,239 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,202 |
| Celtic Nations | 0 | - | 4.61 | 47,125 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,088 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,074 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,766 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,522 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,978 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,231 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,716 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,903 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,839 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,129 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,894 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,165 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,477 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,603 |
| Monarchies of Europe | 0 | - | 4.90 | 99,024 |
| European Countries with One Border | 0 | - | 4.97 | 184,014 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,720 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,725 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,542 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,354 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,909 |
| Slavic Countries | 0 | - | 4.96 | 112,498 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,907 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,575 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,801 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,970 |
| States of Germany | 0 | - | 4.95 | 154,914 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,746 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,799 |
| Regions of Italy | 0 | - | 4.92 | 77,249 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,909 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,569 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,893 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,822 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,620 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,263 |
| Counties of England | 0 | - | 4.97 | 804,147 |
| Imagine Lyrics | 0 | - | 4.53 | 43,569 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,403 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,861 |
| Champions League Winners | 0 | - | 4.92 | 1,017,841 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,828 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,935 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,106 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,716 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,072 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,313 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.90 | 107,067 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,998 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,473 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,272 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,807 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,214 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,876 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,881 |
| Monarchies of Asia | 0 | - | 4.97 | 71,601 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,350 |
| Countries of the Middle East | 0 | - | 4.96 | 203,245 |
| Provinces of Turkey | 0 | - | 4.95 | 206,297 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,810 |
| Provinces of China | 0 | - | 4.97 | 208,788 |
| Japanese Prefectures | 0 | - | 4.98 | 139,382 |
| States of India | 0 | - | 4.94 | 196,469 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,569 |
| Flags of Africa Quiz | 0 | - | 5.00 | 479,001 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,618 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,140 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,051 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,680 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 47,445 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,557 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,949 |
| The Only African Country ... | 0 | - | 4.99 | 129,794 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,443 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,465 |
| African Island Countries | 0 | - | 4.96 | 102,731 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,862 |
| 10 Easternmost Countries in Africa | 0 | - | 4.98 | 25,246 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,584 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,982 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 60,592 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,534 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,899 |
| Palau Country Quiz | 0 | - | 4.89 | 23,165 |
| Most Visited Countries by Australians | 0 | - | 4.95 | 90,947 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 69,696 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,943 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,555 |
| Tuvalu Country Quiz | 0 | - | 4.86 | 21,563 |
| Samoa Country Quiz | 0 | - | 4.81 | 20,973 |
| Tonga Country Quiz | 0 | - | 4.83 | 20,637 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,665 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,658 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,943 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,894 |
| States of Mexico | 0 | - | 4.96 | 178,708 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,857 |
| Mexico States Map Quiz | 0 | - | 4.85 | 105,770 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 105,606 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 55,013 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,718 |
| States of Brazil | 0 | - | 4.98 | 90,030 |
| Colombia Country Quiz | 0 | - | 4.90 | 41,052 |
| Central American Countries | 0 | - | 4.98 | 157,530 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,691 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 151,025 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,587 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,551 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,731 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,992 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 336,181 |
| Pixelated United States Map | 0 | - | 4.89 | 94,924 |
