| Regions of Italy | 0 | - | 4.92 | 75,030 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,413 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,243 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,559 |
| States of Germany | 0 | - | 4.96 | 150,782 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,251 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,024 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,946 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,619 |
| Departments of France | 0 | - | 4.93 | 53,127 |
| Italy Country Quiz | 0 | - | 4.82 | 122,545 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,701 |
| England or Wales? | 0 | - | 4.94 | 45,445 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,780 |
| Official European Union Languages | 0 | - | 4.97 | 237,420 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,180 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,084 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,691 |
| Italian Foods | 0 | - | 4.31 | 72,378 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,205 |
| Roman Emperors | 0 | - | 4.95 | 118,988 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,640 |
| History of Italy | 0 | - | 4.55 | 31,874 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,289 |
| Celtic Nations | 0 | - | 4.69 | 46,856 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,021 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,976 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,039 |
| Regions of France | 0 | - | 4.78 | 119,712 |
| France Immigration by Country | 0 | - | 4.72 | 76,113 |
| Famous Germans | 0 | - | 4.50 | 54,772 |
| German Groups of Things | 0 | - | 4.46 | 38,357 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,147 |
| Germany True or False? | 0 | - | 4.61 | 48,620 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,693 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,645 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,706 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,762 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,984 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,121 |
| Counties of England | 0 | - | 4.97 | 791,534 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,682 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,469 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,546 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,740 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,981 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,757 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,545 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,467 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,564 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,161 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,910 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,588 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,038 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,062 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,671 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,762 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,932 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,241 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,480 |
| Champions League Winners | 0 | - | 4.92 | 999,361 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,257 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,785 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,368 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,595 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,361 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,888 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,788 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,550 |
| Word Chain - France | 0 | - | 4.38 | 42,647 |
| Germany Country Quiz | 0 | - | 4.82 | 156,985 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,439 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,843 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,819 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,573 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,347 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,095 |
| The Mafia Quiz | 0 | - | 4.46 | 23,229 |
| History of The Netherlands | 0 | - | 4.46 | 17,350 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,297 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,914 |
| Canary Islands | 0 | - | 4.61 | 17,428 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,296 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,312 |
| British Spellings | 0 | - | 4.07 | 99,329 |
| British Groups of Things | 0 | - | 4.25 | 82,744 |
| British Acronyms | 0 | - | 4.39 | 45,674 |
| UK Immigration by Country | 0 | - | 4.94 | 139,985 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,981 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,673 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,670 |
| Geography of Scotland | 0 | - | 4.63 | 21,523 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,998 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,490 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,618 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,186 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,626 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,037 |
| Slavic Languages | 0 | - | 4.68 | 54,103 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,601 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,493 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,580 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,989 |
| France A-Z | 0 | - | 4.16 | 38,100 |
| French History Multiple Choice | 0 | - | 4.55 | 32,920 |
| History of Germany | 0 | - | 4.39 | 52,689 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,722 |
| Name that Greek Letter | 0 | - | 4.93 | 322,234 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,499 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,588 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,740 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,596 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,746 |
| Roman Names for Places | 0 | - | 4.62 | 57,996 |
| Byzantine History | 0 | - | 4.91 | 28,671 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,559 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,309 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,513 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,278 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,728 |
| Switzerland A-Z | 0 | - | 4.45 | 25,555 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,521 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,954 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,746 |
| Malta Country Quiz | 0 | - | 4.81 | 30,900 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,066 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,450 |
| History of Russia Quiz | 0 | - | 4.49 | 31,828 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,617 |
| Famous French People | 0 | - | 4.12 | 28,095 |
| Movies Set in France | 0 | - | 4.26 | 13,090 |
| French Inventions | 0 | - | 4.08 | 13,871 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,760 |
| History of Paris | 0 | - | 4.24 | 13,627 |
| Word Chain - Germany | 0 | - | 4.31 | 22,511 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,635 |
| The Trojan War | 0 | - | 4.83 | 39,519 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,977 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,872 |
| Italian Inventions | 0 | - | 3.81 | 18,421 |
| Word Chain - Italy | 0 | - | 4.07 | 23,127 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,364 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,057 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,537 |
| Famous Nordic People | 0 | - | 4.34 | 19,941 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,558 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,060 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,269 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,489 |
| People on Money - England | 0 | - | 4.29 | 16,580 |
| Name a Valid English City | 0 | - | 4.19 | 16,657 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,052 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,466 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,673 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,915 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,607 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,069 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,038 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,916 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,384 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,196 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,976 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,749 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,146 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,504 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,185 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,081 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,720 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,034 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,070 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,730 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,687 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,070 |
| Capitals of French Regions | 0 | - | 4.45 | 16,010 |
| Kings of France Quiz | 0 | - | 4.20 | 32,608 |
| Capitals of German States | 0 | - | 4.74 | 28,877 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,167 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,114 |
| Ancient Greek Words | 0 | - | 4.93 | 110,983 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,126 |
| British to American Food Translation | 0 | - | 3.38 | 51,894 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,333 |
| Imagine Lyrics | 0 | - | 4.53 | 43,117 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,420 |
| Famous Scottish People | 0 | - | 4.22 | 18,347 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,687 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,525 |
| Australian Capitals | 0 | - | 4.92 | 62,636 |
| European Physical Geography | 0 | - | 4.26 | 33,409 |
| Geography of Russia | 0 | - | 4.57 | 21,461 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,828 |
| History of Austria | 0 | - | 4.70 | 17,784 |
| Austria Country Quiz | 0 | - | 4.57 | 59,477 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,412 |
| France Country Quiz | 0 | - | 4.70 | 134,352 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,001 |
| Geography of the French Empire | 0 | - | 4.45 | 26,977 |
| The French Revolution | 0 | - | 4.46 | 23,843 |
| France Multiple Choice | 0 | - | 4.38 | 40,669 |
| Tour de France Winners | 0 | - | 4.27 | 15,265 |
