| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,137 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,593 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,855 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,756 |
| Official European Union Languages | 0 | - | 4.97 | 239,849 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,681 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,008 |
| Slavic Languages | 0 | - | 4.67 | 54,707 |
| Austria... or Australia? | 0 | - | 4.67 | 104,774 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,105 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,327 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,877 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,063 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,041 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,834 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,972 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,701 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,465 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,868 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,510 |
| Celtic Nations | 0 | - | 4.61 | 47,105 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,855 |
| Champions League Winners | 0 | - | 4.92 | 1,016,487 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,994 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,793 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,911 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,006 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,584 |
| States of Germany | 0 | - | 4.95 | 154,582 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,709 |
| Regions of Italy | 0 | - | 4.92 | 77,118 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,817 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,360 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,779 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,758 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,946 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,976 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,982 |
| Departments of France | 0 | - | 4.93 | 55,204 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,751 |
| England or Wales? | 0 | - | 4.94 | 45,977 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,207 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,855 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,749 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,721 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,353 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,495 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,968 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,099 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,716 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,569 |
| The Trojan War | 0 | - | 4.83 | 40,000 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,127 |
| Name that Greek Letter | 0 | - | 4.93 | 325,031 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,996 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,852 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,742 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,604 |
| Roman Emperors | 0 | - | 4.95 | 121,249 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,632 |
| Iran... or Iraq? | 0 | - | 4.31 | 33,665 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,869 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,865 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,610 |
| History of Italy | 0 | - | 4.55 | 32,154 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,396 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,827 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,429 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,167 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,248 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,648 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,100 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,056 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,169 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,634 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,200 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,770 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,107 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,687 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,141 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,533 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,193 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,469 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,435 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,501 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,554 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,751 |
| Capitals of French Regions | 0 | - | 4.45 | 16,185 |
| Regions of France | 0 | - | 4.70 | 122,146 |
| France Immigration by Country | 0 | - | 4.70 | 76,948 |
| Famous Germans | 0 | - | 4.50 | 55,802 |
| German Groups of Things | 0 | - | 4.47 | 38,639 |
| Capitals of German States | 0 | - | 4.74 | 29,074 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,547 |
| Germany True or False? | 0 | - | 4.61 | 49,026 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,500 |
| Ancient Greek Words | 0 | - | 4.93 | 112,513 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,410 |
| Italy True or False? | 0 | - | 4.42 | 47,615 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,522 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,795 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,412 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,847 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,571 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,815 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,821 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,388 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,834 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,772 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,447 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,610 |
| Australian Capitals | 0 | - | 4.92 | 62,837 |
| European Physical Geography | 0 | - | 4.26 | 33,599 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,600 |
| Geography of Russia | 0 | - | 4.57 | 21,604 |
| History of Austria | 0 | - | 4.70 | 17,977 |
| Geography of the French Empire | 0 | - | 4.45 | 27,220 |
| The French Revolution | 0 | - | 4.47 | 24,149 |
| France Multiple Choice | 0 | - | 4.39 | 40,855 |
| History of France | 0 | - | 4.61 | 57,636 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,560 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,910 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,905 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,393 |
| The Portuguese Empire | 0 | - | 4.58 | 12,107 |
| American to British Word Translation | 0 | - | 4.14 | 139,718 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,065 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,385 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,601 |
| UK General Knowledge Multiple Choice #1 | 0 | - | 4.24 | 20,892 |
| UK General Knowledge Multiple Choice #2 | 0 | - | 4.33 | 22,803 |
| Champions League Top 4 | 0 | - | 4.78 | 139,181 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,687 |
| Asia Map Quiz | 0 | - | 4.99 | 925,468 |
| Which Asian Country? | 0 | - | 4.64 | 57,754 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,064 |
| Which African Country? | 0 | - | 4.58 | 36,469 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,484 |
| Australia Map Quiz | 0 | - | 4.95 | 346,223 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,788 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,786 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,018 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,942 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,249 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,882 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,294 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,310 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,575 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,282 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,043 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,640 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,282 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,663 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,646 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,902 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,948 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,201 |
| European Geography A-Z | 0 | - | 4.29 | 49,488 |
| Country Codes of Europe | 0 | - | 3.45 | 13,835 |
| The Only European Country ... | 0 | - | 4.91 | 219,137 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,583 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,866 |
| Seas of Europe | 0 | - | 4.37 | 84,928 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,259 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,673 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,145 |
| Famous French People | 0 | - | 4.05 | 36,118 |
| Presidents of France | 0 | - | 4.25 | 24,343 |
| France A-Z | 0 | - | 4.16 | 38,342 |
| Word Chain - France | 0 | - | 4.38 | 42,943 |
| France True or False? | 0 | - | 4.44 | 40,080 |
| French History Multiple Choice | 0 | - | 4.55 | 33,244 |
| History of Germany | 0 | - | 4.39 | 52,977 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,246 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,051 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,334 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,974 |
| Italian Foods | 0 | - | 4.30 | 73,294 |
| Countries Italy Declared War On | 0 | - | 4.75 | 44,636 |
| The Mafia Quiz | 0 | - | 4.46 | 23,440 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,306 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,216 |
| Roman Names for Places | 0 | - | 4.62 | 58,718 |
| Byzantine History | 0 | - | 4.91 | 29,026 |
| Byzantine Emperors | 0 | - | 4.93 | 14,609 |
| History of The Netherlands | 0 | - | 4.46 | 17,556 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,119 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,296 |
| Canary Islands | 0 | - | 4.62 | 17,543 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 68,907 |
| Switzerland A-Z | 0 | - | 4.45 | 25,770 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,084 |
| British Spellings | 0 | - | 4.06 | 99,610 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,986 |
| British Groups of Things | 0 | - | 4.26 | 83,021 |
| British Acronyms | 0 | - | 4.40 | 45,946 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,090 |
