| European Countries by First 2 Letters | 0 | - | 4.95 | 531,672 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,851 |
| History of Russia Quiz | 0 | - | 4.47 | 31,983 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,830 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,563 |
| Official European Union Languages | 0 | - | 4.97 | 239,408 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,427 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,125 |
| Geography of Russia | 0 | - | 4.57 | 21,574 |
| Slavic Languages | 0 | - | 4.68 | 54,607 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,216 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,992 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,469 |
| Celtic Nations | 0 | - | 4.61 | 47,059 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,873 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,137 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,861 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,914 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,631 |
| Slavic Countries | 0 | - | 4.96 | 112,167 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,610 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,333 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,992 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,545 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,590 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,685 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,232 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,681 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,847 |
| Word Chain - Russia | 0 | - | 4.33 | 15,782 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,314 |
| States of Germany | 0 | - | 4.95 | 153,952 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,515 |
| Regions of Italy | 0 | - | 4.92 | 76,663 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,642 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,985 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,594 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,805 |
| Champions League Winners | 0 | - | 4.92 | 1,012,892 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,074 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,297 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,387 |
| Departments of France | 0 | - | 4.93 | 54,841 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,695 |
| England or Wales? | 0 | - | 4.94 | 45,887 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,597 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,700 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,699 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,141 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,240 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,702 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,588 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,772 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,347 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,006 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,565 |
| Name that Greek Letter | 0 | - | 4.93 | 324,634 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,617 |
| Famous Russians | 0 | - | 4.16 | 23,890 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,568 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,427 |
| The Trojan War | 0 | - | 4.83 | 39,929 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,659 |
| History of Italy | 0 | - | 4.55 | 32,106 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,180 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,468 |
| Roman Emperors | 0 | - | 4.95 | 120,862 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,781 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,377 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,274 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,017 |
| Australian Capitals | 0 | - | 4.92 | 62,804 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,640 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,014 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,626 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,018 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,694 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,019 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,838 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,351 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,571 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,254 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,126 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,443 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,100 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,395 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,363 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,189 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,414 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,634 |
| Capitals of French Regions | 0 | - | 4.45 | 16,153 |
| Regions of France | 0 | - | 4.70 | 121,711 |
| France Immigration by Country | 0 | - | 4.70 | 76,822 |
| Famous Germans | 0 | - | 4.50 | 55,659 |
| German Groups of Things | 0 | - | 4.47 | 38,592 |
| Capitals of German States | 0 | - | 4.74 | 29,032 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,479 |
| Germany True or False? | 0 | - | 4.61 | 48,959 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,311 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,916 |
| Ancient Greek Words | 0 | - | 4.93 | 112,219 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,049 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,623 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,378 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,637 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,537 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,819 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,543 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,782 |
| European Physical Geography | 0 | - | 4.26 | 33,571 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,072 |
| History of Austria | 0 | - | 4.70 | 17,949 |
| Geography of the French Empire | 0 | - | 4.45 | 27,193 |
| The French Revolution | 0 | - | 4.47 | 24,108 |
| France Multiple Choice | 0 | - | 4.39 | 40,810 |
| History of France | 0 | - | 4.61 | 57,458 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,539 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,973 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,405 |
| The Vikings! | 0 | - | 4.46 | 28,389 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,308 |
| The Portuguese Empire | 0 | - | 4.58 | 12,095 |
| American to British Word Translation | 0 | - | 4.14 | 139,528 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,015 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,256 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,768 |
| Champions League Top 4 | 0 | - | 4.77 | 138,144 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,005 |
| Asia Map Quiz | 0 | - | 4.99 | 922,851 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,746 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,240 |
| Australia Map Quiz | 0 | - | 4.95 | 345,727 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,474 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,391 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,828 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,234 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,685 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,765 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,079 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,883 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,583 |
| European Geography By Letter - I | 0 | - | 4.09 | 96,282 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,920 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,332 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,399 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,825 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,691 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,700 |
| European Geography A-Z | 0 | - | 4.29 | 49,429 |
| Country Codes of Europe | 0 | - | 3.43 | 13,783 |
| The Only European Country ... | 0 | - | 4.91 | 218,301 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,117 |
| European Geographic Groups of Four | 0 | - | 4.54 | 19,543 |
| Austria... or Australia? | 0 | - | 4.68 | 104,650 |
| Famous French People | 0 | - | 4.07 | 35,989 |
| Presidents of France | 0 | - | 4.25 | 24,292 |
| Word Chain - France | 0 | - | 4.38 | 42,896 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,169 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,999 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,916 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,326 |
| Italian Foods | 0 | - | 4.30 | 73,114 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,553 |
| The Mafia Quiz | 0 | - | 4.46 | 23,408 |
| History of The Netherlands | 0 | - | 4.46 | 17,526 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,092 |
| Canary Islands | 0 | - | 4.62 | 17,512 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,949 |
| British Spellings | 0 | - | 4.06 | 99,554 |
| British Groups of Things | 0 | - | 4.25 | 82,970 |
| British Acronyms | 0 | - | 4.40 | 45,899 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,085 |
| British Monopoly Board | 0 | - | 4.52 | 41,234 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,056 |
| Geography of Scotland | 0 | - | 4.63 | 21,704 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,673 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,157 |
| Countries of Africa | 0 | - | 5.00 | 2,552,415 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,597 |
| African East Coast | 0 | - | 4.96 | 96,531 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,404 |
| Australian States and Territories | 0 | - | 4.96 | 142,587 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,443 |
| Australia True or False | 0 | - | 4.87 | 57,065 |
| Flags of North and South America | 0 | - | 4.99 | 375,803 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,856 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,627 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,381 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,001 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,707 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,749 |
| North America Map Quiz | 0 | - | 4.98 | 250,612 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,916 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,079 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,070 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,449 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,075 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,480 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,486 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,269 |
