| European Countries by First 2 Letters | 0 | - | 4.95 | 528,574 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,432 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,976 |
| Departments of France | 0 | - | 4.93 | 53,720 |
| Italy Country Quiz | 0 | - | 4.82 | 123,153 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,071 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,789 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,511 |
| England or Wales? | 0 | - | 4.94 | 45,589 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,704 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,737 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,669 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,982 |
| Official European Union Languages | 0 | - | 4.97 | 238,069 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,576 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,362 |
| The Trojan War | 0 | - | 4.83 | 39,638 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,498 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,292 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,398 |
| Roman Emperors | 0 | - | 4.95 | 119,625 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,864 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,433 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,743 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,673 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,567 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,842 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,044 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,353 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,227 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,905 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,460 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,278 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,862 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,954 |
| Champions League Winners | 0 | - | 4.92 | 1,003,469 |
| Celtic Nations | 0 | - | 4.69 | 46,905 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,866 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,874 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,649 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,209 |
| Countries Bordering France | 0 | - | 4.83 | 401,792 |
| States of Germany | 0 | - | 4.96 | 151,780 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,854 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,522 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,362 |
| Regions of Italy | 0 | - | 4.92 | 75,505 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,777 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,019 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,597 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,970 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,549 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,655 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,380 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,331 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,503 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,227 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,598 |
| Austria... or Australia? | 0 | - | 4.68 | 104,220 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,167 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,398 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,776 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,077 |
| Germany Country Quiz | 0 | - | 4.82 | 157,525 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,845 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,002 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,929 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,874 |
| Counties of Ireland | 0 | - | 4.92 | 194,555 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,236 |
| Byzantine History | 0 | - | 4.91 | 28,750 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,895 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,639 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,333 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,680 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,560 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,503 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,065 |
| UK Immigration by Country | 0 | - | 4.94 | 140,629 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,368 |
| British Monopoly Board | 0 | - | 4.52 | 41,136 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,180 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,878 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,065 |
| Beatles Lyrics First Names | 0 | - | 4.38 | 34,615 |
| Viva la Vida Lyrics | 0 | - | 4.37 | 49,775 |
| Elton John Quiz | 0 | - | 4.48 | 18,453 |
| Name the English Monarchs | 0 | - | 4.91 | 501,304 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,211 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,661 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,683 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,548 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,640 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,468 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,318 |
| Slavic Languages | 0 | - | 4.68 | 54,254 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,610 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,616 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,453 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,041 |
| France A-Z | 0 | - | 4.16 | 38,165 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,032 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,076 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,890 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,919 |
| Name that Greek Letter | 0 | - | 4.93 | 323,032 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,438 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,599 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,570 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,683 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,847 |
| Roman Names for Places | 0 | - | 4.62 | 58,161 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,124 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,415 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,577 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,769 |
| Switzerland A-Z | 0 | - | 4.45 | 25,617 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,628 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,997 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,844 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,137 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,824 |
| History of Russia Quiz | 0 | - | 4.49 | 31,878 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,687 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,185 |
| Kings of France Quiz | 0 | - | 4.20 | 32,679 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,894 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,112 |
| The Life of Alexander the Great | 0 | - | 4.50 | 18,474 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,380 |
| Ancient Greek Words | 0 | - | 4.93 | 111,305 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,459 |
| Famous Irish People | 0 | - | 4.05 | 45,974 |
| History of Italy | 0 | - | 4.55 | 31,930 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,620 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,732 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,167 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,606 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,372 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,156 |
| Geography of Spain | 0 | - | 4.59 | 22,044 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,000 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,083 |
| British Geography A-Z | 0 | - | 4.42 | 19,491 |
| The Beatles Members | 0 | - | 4.22 | 23,886 |
| Imagine Lyrics | 0 | - | 4.53 | 43,205 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,581 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,636 |
| London A-Z | 0 | - | 4.10 | 40,743 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,812 |
| European Geography By Letter - A | 0 | - | 4.51 | 144,694 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,553 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,295 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,027 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,099 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,084 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,186 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,527 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,210 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,773 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,093 |
| Europe Map Quiz | 0 | - | 5.00 | 4,754,412 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,198 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,856 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,144 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,171 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,327 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,349 |
| Capitals of French Regions | 0 | - | 4.45 | 16,033 |
| Regions of France | 0 | - | 4.75 | 120,361 |
| France Immigration by Country | 0 | - | 4.70 | 76,377 |
| Famous Germans | 0 | - | 4.50 | 55,136 |
| German Groups of Things | 0 | - | 4.46 | 38,430 |
| Capitals of German States | 0 | - | 4.74 | 28,923 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,275 |
| Germany True or False? | 0 | - | 4.61 | 48,732 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,851 |
| Roman to Greek God | 0 | - | 4.52 | 122,637 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,243 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,525 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,994 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,983 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,204 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,230 |
| British to American Food Translation | 0 | - | 3.38 | 51,938 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,044 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,405 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,574 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,587 |
| Famous Scottish People | 0 | - | 4.22 | 18,387 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,591 |
| Michael Jackson Complete Song Discography | 0 | - | 4.58 | 5,242 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,237 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,310 |
| Australian Capitals | 0 | - | 4.92 | 62,691 |
| United States Map Quiz | 0 | - | 4.98 | 4,153,218 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,205 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,538 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,718 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,366 |
