| Regions of Italy | 0 | - | 4.92 | 76,681 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,700 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,695 |
| States of Germany | 0 | - | 4.95 | 153,981 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,525 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,647 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,996 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,606 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,893 |
| Departments of France | 0 | - | 4.93 | 54,851 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,014 |
| England or Wales? | 0 | - | 4.94 | 45,892 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,572 |
| Official European Union Languages | 0 | - | 4.97 | 239,428 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,439 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,166 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,478 |
| Roman Emperors | 0 | - | 4.95 | 120,877 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,219 |
| Italian Foods | 0 | - | 4.30 | 73,124 |
| History of Italy | 0 | - | 4.55 | 32,107 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,994 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,885 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,193 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,915 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,615 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,338 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,956 |
| Counties of England | 0 | - | 4.97 | 801,236 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,008 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,860 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,560 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,057 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,469 |
| Celtic Nations | 0 | - | 4.61 | 47,061 |
| Regions of France | 0 | - | 4.70 | 121,727 |
| France Immigration by Country | 0 | - | 4.70 | 76,827 |
| Famous Germans | 0 | - | 4.50 | 55,665 |
| German Groups of Things | 0 | - | 4.47 | 38,594 |
| Germany True or False? | 0 | - | 4.61 | 48,960 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,329 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,071 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,036 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,410 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,631 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,379 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,909 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,649 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,764 |
| Champions League Winners | 0 | - | 4.92 | 1,013,089 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,555 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,608 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,261 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,697 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,902 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,357 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,544 |
| Italy Country Quiz | 0 | - | 4.77 | 123,878 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,145 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,310 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,375 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,658 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,263 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,805 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,691 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,122 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,427 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,419 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,874 |
| Famous French People | 0 | - | 4.07 | 36,000 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,511 |
| Word Chain - France | 0 | - | 4.38 | 42,896 |
| Germany Country Quiz | 0 | - | 4.83 | 158,561 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,894 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,172 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,002 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,351 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,870 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,558 |
| The Mafia Quiz | 0 | - | 4.46 | 23,410 |
| Byzantine History | 0 | - | 4.91 | 28,987 |
| Byzantine Emperors | 0 | - | 4.92 | 14,498 |
| History of The Netherlands | 0 | - | 4.46 | 17,529 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,319 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,584 |
| Canary Islands | 0 | - | 4.62 | 17,513 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,584 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,955 |
| British Spellings | 0 | - | 4.06 | 99,558 |
| British Groups of Things | 0 | - | 4.25 | 82,975 |
| British Acronyms | 0 | - | 4.40 | 45,899 |
| UK Immigration by Country | 0 | - | 4.94 | 141,456 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,085 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,657 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,461 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,056 |
| Geography of Scotland | 0 | - | 4.63 | 21,704 |
| Elton John Quiz | 0 | - | 4.49 | 18,510 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,622 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,704 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,699 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,147 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,259 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,778 |
| Slavic Languages | 0 | - | 4.68 | 54,609 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,007 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,656 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,114 |
| France A-Z | 0 | - | 4.16 | 38,309 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,573 |
| French History Multiple Choice | 0 | - | 4.55 | 33,178 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,432 |
| History of Germany | 0 | - | 4.39 | 52,944 |
| The Trojan War | 0 | - | 4.83 | 39,930 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,692 |
| Name that Greek Letter | 0 | - | 4.93 | 324,654 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,667 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,704 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,161 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,023 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,049 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,054 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,153 |
| Roman Names for Places | 0 | - | 4.62 | 58,607 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,506 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,590 |
| Most Common First Names in Spain | 0 | - | 4.32 | 54,769 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,713 |
| Switzerland A-Z | 0 | - | 4.45 | 25,739 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,908 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,074 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,011 |
| Malta Country Quiz | 0 | - | 4.81 | 31,198 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,629 |
| History of Russia Quiz | 0 | - | 4.47 | 31,985 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,831 |
| Movies Set in France | 0 | - | 4.26 | 13,140 |
| French Inventions | 0 | - | 4.10 | 13,918 |
| History of Paris | 0 | - | 4.24 | 13,667 |
| Word Chain - Germany | 0 | - | 4.31 | 22,659 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,707 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,124 |
| Italian Inventions | 0 | - | 3.81 | 18,467 |
| Word Chain - Italy | 0 | - | 4.07 | 23,205 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,191 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,691 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,781 |
| Famous Nordic People | 0 | - | 4.34 | 20,235 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,627 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,379 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,384 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,564 |
| People on Money - England | 0 | - | 4.29 | 16,634 |
| Name a Valid English City | 0 | - | 4.19 | 16,792 |
| Imagine Lyrics | 0 | - | 4.53 | 43,500 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,264 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,654 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,034 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,766 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,037 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,710 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,039 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,850 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,361 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,576 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,263 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,565 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,446 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,102 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,397 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,364 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,197 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,417 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,641 |
| Capitals of French Regions | 0 | - | 4.45 | 16,154 |
| Kings of France Quiz | 0 | - | 4.20 | 32,876 |
| Capitals of German States | 0 | - | 4.74 | 29,033 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,491 |
| Ancient Greek Words | 0 | - | 4.93 | 112,237 |
| Serie A Champions | 0 | - | 4.29 | 58,666 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,156 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,235 |
| British to American Food Translation | 0 | - | 3.38 | 52,017 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,538 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,768 |
| Beatles Lyrics First Names | 0 | - | 4.36 | 40,092 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,963 |
| Famous Scottish People | 0 | - | 4.22 | 18,427 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,293 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,031 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,864 |
| Australian Capitals | 0 | - | 4.92 | 62,804 |
| European Physical Geography | 0 | - | 4.26 | 33,572 |
| Geography of Russia | 0 | - | 4.57 | 21,574 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,075 |
| History of Austria | 0 | - | 4.70 | 17,950 |
| Austria Country Quiz | 0 | - | 4.57 | 59,970 |
| Belgium Country Quiz | 0 | - | 4.72 | 72,121 |
| France Country Quiz | 0 | - | 4.70 | 135,442 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,306 |
