| European Countries by First 2 Letters | 0 | - | 4.95 | 529,670 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,156 |
| Official European Union Languages | 0 | - | 4.97 | 238,564 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,896 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,298 |
| Celtic Nations | 0 | - | 4.69 | 46,953 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,002 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,850 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,388 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,389 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,622 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 171,995 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,367 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,023 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,505 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,191 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,708 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,260 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,164 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,659 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,012 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,396 |
| States of Germany | 0 | - | 4.96 | 152,677 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,066 |
| Regions of Italy | 0 | - | 4.92 | 75,924 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,204 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,995 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,236 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,203 |
| Champions League Winners | 0 | - | 4.92 | 1,007,117 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,607 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,660 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,719 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,024 |
| Slavic Languages | 0 | - | 4.68 | 54,380 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,625 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,475 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,356 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,900 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,179 |
| Departments of France | 0 | - | 4.93 | 54,168 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,555 |
| England or Wales? | 0 | - | 4.94 | 45,710 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,422 |
| Australian Capitals | 0 | - | 4.92 | 62,728 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,031 |
| Country Codes of Europe | 0 | - | 3.43 | 13,734 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,117 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,474 |
| History of Russia Quiz | 0 | - | 4.47 | 31,922 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,737 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,781 |
| Capitals of French Regions | 0 | - | 4.45 | 16,081 |
| Capitals of German States | 0 | - | 4.74 | 28,956 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,345 |
| History of Italy | 0 | - | 4.55 | 31,980 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,801 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,664 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,242 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,357 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,570 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,370 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,496 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,089 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,717 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,591 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,745 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,607 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,909 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,757 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,052 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,499 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,284 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,955 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,234 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,241 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,654 |
| Regions of France | 0 | - | 4.72 | 120,859 |
| France Immigration by Country | 0 | - | 4.70 | 76,535 |
| Famous Germans | 0 | - | 4.50 | 55,307 |
| German Groups of Things | 0 | - | 4.46 | 38,483 |
| Germany True or False? | 0 | - | 4.61 | 48,815 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,040 |
| The Trojan War | 0 | - | 4.83 | 39,736 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,628 |
| Name that Greek Letter | 0 | - | 4.93 | 323,500 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,883 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,521 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,547 |
| Roman Emperors | 0 | - | 4.95 | 120,089 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,387 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,277 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,267 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,398 |
| Asia Map Quiz | 0 | - | 4.99 | 917,117 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,859 |
| African East Coast | 0 | - | 4.96 | 96,098 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,914 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,732 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,340 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,661 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,105 |
| European Physical Geography | 0 | - | 4.26 | 33,515 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,313 |
| The Only European Country ... | 0 | - | 4.91 | 216,732 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,194 |
| Geography of Russia | 0 | - | 4.57 | 21,535 |
| History of Austria | 0 | - | 4.70 | 17,864 |
| Presidents of France | 0 | - | 4.25 | 24,148 |
| Geography of the French Empire | 0 | - | 4.45 | 27,062 |
| The French Revolution | 0 | - | 4.47 | 23,943 |
| France Multiple Choice | 0 | - | 4.39 | 40,744 |
| The Vikings! | 0 | - | 4.46 | 28,347 |
| The Portuguese Empire | 0 | - | 4.58 | 12,067 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,049 |
| American to British Word Translation | 0 | - | 4.14 | 139,094 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,904 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,006 |
| Countries of Africa | 0 | - | 5.00 | 2,538,027 |
| Australia Map Quiz | 0 | - | 4.95 | 344,665 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,548 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,971 |
| History of France | 0 | - | 4.59 | 57,000 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,976 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,139 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,049 |
| Champions League Top 4 | 0 | - | 4.77 | 136,562 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,383,174 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,652 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,915 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,836 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,995 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,121 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,791 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,597 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,238 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,788 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,964 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,682 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,237 |
| European Geography A-Z | 0 | - | 4.29 | 49,277 |
| Famous French People | 0 | - | 4.06 | 35,613 |
| Word Chain - France | 0 | - | 4.38 | 42,784 |
| Ancient Greek Words | 0 | - | 4.93 | 111,637 |
| Italian Foods | 0 | - | 4.30 | 72,801 |
| The Mafia Quiz | 0 | - | 4.46 | 23,328 |
| History of The Netherlands | 0 | - | 4.46 | 17,437 |
| Canary Islands | 0 | - | 4.62 | 17,482 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,722 |
| British Spellings | 0 | - | 4.06 | 99,459 |
| British Groups of Things | 0 | - | 4.25 | 82,878 |
| British Acronyms | 0 | - | 4.40 | 45,803 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,038 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,824 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,673 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,360 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,763 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,984 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,576 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,032 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,610 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,278 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,292 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,562 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,111 |
| African Island Countries | 0 | - | 4.96 | 101,659 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,460 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,305 |
| Australian States and Territories | 0 | - | 4.96 | 142,015 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,295 |
| Australia Country Quiz | 0 | - | 4.43 | 69,599 |
| Australia True or False | 0 | - | 4.87 | 56,868 |
| Flags of North and South America | 0 | - | 4.99 | 373,230 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,625 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,249 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,816 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,061 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,592 |
| North America Map Quiz | 0 | - | 4.98 | 248,625 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,744 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,698 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,582 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,181 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,890 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,673 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,011 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,699 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,238 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,802 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,181 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,281 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,322 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,223 |
| Slavic Countries | 0 | - | 4.96 | 111,694 |
| Austria... or Australia? | 0 | - | 4.68 | 104,364 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,487 |
| Geography of Germany | 0 | - | 4.35 | 17,188 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,005 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,916 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,339 |
