| Countries Surrounding Rome | 0 | - | 4.97 | 49,751 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,834 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,607 |
| Roman Emperors | 0 | - | 4.95 | 121,253 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,606 |
| Regions of Italy | 0 | - | 4.92 | 77,124 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,882 |
| Departments of France | 0 | - | 4.93 | 55,212 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,268 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,105 |
| England or Wales? | 0 | - | 4.94 | 45,977 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,099 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,270 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,422 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,757 |
| Official European Union Languages | 0 | - | 4.97 | 239,851 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,682 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,012 |
| The Trojan War | 0 | - | 4.83 | 40,002 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,003 |
| Countries Italy Declared War On | 0 | - | 4.75 | 44,823 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,201 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,328 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,872 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,064 |
| History of Italy | 0 | - | 4.55 | 32,156 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,308 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,218 |
| Roman Names for Places | 0 | - | 4.62 | 58,720 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,394 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,343 |
| Viva la Vida Lyrics | 0 | - | 4.38 | 50,143 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,879 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,510 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,043 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,837 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,978 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,702 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,466 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,910 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,525 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,522 |
| Champions League Winners | 0 | - | 4.92 | 1,016,507 |
| Celtic Nations | 0 | - | 4.61 | 47,105 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,998 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,794 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,915 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,007 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,591 |
| Countries Bordering France | 0 | - | 4.83 | 404,997 |
| States of Germany | 0 | - | 4.95 | 154,601 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,709 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,927 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,920 |
| Italy Country Quiz | 0 | - | 4.77 | 124,079 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,266 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,819 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,395 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,362 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,780 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,386 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Don't Stop Believin' Lyrics | 0 | - | 4.47 | 224,687 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,759 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,969 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,951 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,979 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,987 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,946 |
| Austria... or Australia? | 0 | - | 4.67 | 104,775 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,960 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,841 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,157 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,492 |
| Germany Country Quiz | 0 | - | 4.82 | 158,875 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,097 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,725 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,246 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,051 |
| Counties of Ireland | 0 | - | 4.92 | 197,387 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,079 |
| Italian Foods | 0 | - | 4.30 | 73,294 |
| Italian History A-Z | 0 | - | 4.16 | 17,939 |
| Byzantine History | 0 | - | 4.91 | 29,027 |
| Byzantine Emperors | 0 | - | 4.93 | 14,609 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,688 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,515 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,892 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,958 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,164 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,901 |
| UK Immigration by Country | 0 | - | 4.94 | 141,750 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,056 |
| British Monopoly Board | 0 | - | 4.52 | 41,276 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,824 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 75,885 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,446 |
| Beatles Lyrics First Names | 0 | - | 4.36 | 40,207 |
| Elton John Quiz | 0 | - | 4.49 | 18,526 |
| Name the English Monarchs | 0 | - | 4.91 | 506,667 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,081 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,319 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,210 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,751 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,721 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,354 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,523 |
| Slavic Languages | 0 | - | 4.67 | 54,709 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,673 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,816 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,145 |
| France A-Z | 0 | - | 4.16 | 38,342 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,717 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,355 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,571 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,139 |
| Name that Greek Letter | 0 | - | 4.93 | 325,032 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,335 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,854 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,743 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,895 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,633 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,298 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,363 |
| Switzerland A-Z | 0 | - | 4.45 | 25,771 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,986 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,090 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,070 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,407 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,873 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,877 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,351 |
| Kings of France Quiz | 0 | - | 4.21 | 32,935 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,154 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,244 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,583 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,790 |
| Ancient Greek Words | 0 | - | 4.93 | 112,516 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,613 |
| Famous Irish People | 0 | - | 4.05 | 46,067 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,396 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,167 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,724 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,827 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,486 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,429 |
| Geography of Spain | 0 | - | 4.59 | 22,186 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,502 |
| British Geography A-Z | 0 | - | 4.42 | 19,616 |
| The Beatles Members | 0 | - | 4.23 | 24,049 |
| Imagine Lyrics | 0 | - | 4.53 | 43,542 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 41,049 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,727 |
| London A-Z | 0 | - | 4.10 | 40,881 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,249 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,651 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,104 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,089 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,171 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,642 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,204 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,789 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,109 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,692 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,210 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,533 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,195 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,469 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,436 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,504 |
| 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 | 122,151 |
| France Immigration by Country | 0 | - | 4.70 | 76,948 |
| Famous Germans | 0 | - | 4.50 | 55,804 |
| German Groups of Things | 0 | - | 4.47 | 38,642 |
| Capitals of German States | 0 | - | 4.74 | 29,074 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,548 |
| Germany True or False? | 0 | - | 4.61 | 49,026 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,500 |
| Roman to Greek God | 0 | - | 4.52 | 123,362 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,411 |
| Serie A Champions | 0 | - | 4.29 | 58,836 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,182 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,795 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,413 |
| British to American Food Translation | 0 | - | 3.38 | 52,050 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,849 |
| 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 |
| Famous Scottish People | 0 | - | 4.22 | 18,441 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,776 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,453 |
| Livin' on a Prayer Lyrics | 0 | - | 4.28 | 96,390 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,633 |
| Australian Capitals | 0 | - | 4.92 | 62,837 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,820 |
