| Regions of Italy | 0 | - | 4.92 | 77,116 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,751 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,593 |
| States of Germany | 0 | - | 4.95 | 154,579 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,709 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,817 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,360 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,778 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,852 |
| Departments of France | 0 | - | 4.93 | 55,203 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,265 |
| England or Wales? | 0 | - | 4.94 | 45,977 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,755 |
| Official European Union Languages | 0 | - | 4.97 | 239,846 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,680 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,005 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,603 |
| Roman Emperors | 0 | - | 4.95 | 121,249 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,327 |
| Italian Foods | 0 | - | 4.30 | 73,294 |
| History of Italy | 0 | - | 4.55 | 32,154 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,063 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,040 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,834 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,971 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,701 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,464 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,862 |
| Counties of England | 0 | - | 4.97 | 803,168 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,102 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,386 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,833 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,864 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,510 |
| Celtic Nations | 0 | - | 4.61 | 47,105 |
| Regions of France | 0 | - | 4.70 | 122,145 |
| France Immigration by Country | 0 | - | 4.70 | 76,948 |
| Famous Germans | 0 | - | 4.50 | 55,801 |
| German Groups of Things | 0 | - | 4.47 | 38,639 |
| Germany True or False? | 0 | - | 4.61 | 49,026 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,500 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,409 |
| Italy True or False? | 0 | - | 4.42 | 47,615 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,904 |
| 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 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,515 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,847 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,815 |
| Champions League Winners | 0 | - | 4.92 | 1,016,482 |
| 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 | 88,909 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,006 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,579 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,673 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,835 |
| Italy Country Quiz | 0 | - | 4.77 | 124,075 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,166 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,393 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,543 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,091 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,384 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,757 |
| 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 | 168,981 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,944 |
| Famous French People | 0 | - | 4.05 | 36,118 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,838 |
| Word Chain - France | 0 | - | 4.38 | 42,943 |
| Germany Country Quiz | 0 | - | 4.82 | 158,870 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,088 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,245 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,050 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,907 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,079 |
| Countries Italy Declared War On | 0 | - | 4.75 | 44,577 |
| The Mafia Quiz | 0 | - | 4.46 | 23,440 |
| Byzantine History | 0 | - | 4.91 | 29,026 |
| Byzantine Emperors | 0 | - | 4.93 | 14,609 |
| History of The Netherlands | 0 | - | 4.46 | 17,556 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,515 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,888 |
| Canary Islands | 0 | - | 4.62 | 17,543 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,953 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,084 |
| British Spellings | 0 | - | 4.06 | 99,610 |
| British Groups of Things | 0 | - | 4.26 | 83,021 |
| British Acronyms | 0 | - | 4.40 | 45,946 |
| UK Immigration by Country | 0 | - | 4.94 | 141,746 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,113 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,051 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,820 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,133 |
| Geography of Scotland | 0 | - | 4.63 | 21,745 |
| Elton John Quiz | 0 | - | 4.49 | 18,526 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,207 |
| 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 | 142,351 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,482 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,968 |
| Slavic Languages | 0 | - | 4.67 | 54,707 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,099 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,673 |
| 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 | 47,716 |
| French History Multiple Choice | 0 | - | 4.55 | 33,243 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,569 |
| History of Germany | 0 | - | 4.39 | 52,977 |
| The Trojan War | 0 | - | 4.83 | 40,000 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,124 |
| Name that Greek Letter | 0 | - | 4.93 | 325,028 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,995 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,742 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,267 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,195 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,417 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,304 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,216 |
| Roman Names for Places | 0 | - | 4.62 | 58,718 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,685 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,632 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,296 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,405 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,900 |
| Switzerland A-Z | 0 | - | 4.45 | 25,770 |
| 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 |
| Malta Country Quiz | 0 | - | 4.81 | 31,239 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,866 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,877 |
| Movies Set in France | 0 | - | 4.26 | 13,153 |
| French Inventions | 0 | - | 4.10 | 13,929 |
| History of Paris | 0 | - | 4.24 | 13,682 |
| Word Chain - Germany | 0 | - | 4.31 | 22,686 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,789 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,607 |
| Italian Inventions | 0 | - | 3.81 | 18,476 |
| Word Chain - Italy | 0 | - | 4.07 | 23,224 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,396 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,722 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,827 |
| Famous Nordic People | 0 | - | 4.34 | 20,312 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,645 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,429 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,416 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,580 |
| People on Money - England | 0 | - | 4.29 | 16,645 |
| Name a Valid English City | 0 | - | 4.19 | 16,829 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,167 |
| Imagine Lyrics | 0 | - | 4.53 | 43,542 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,342 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,247 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,648 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,099 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,045 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,168 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,632 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,197 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,767 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,105 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,685 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,105 |
| 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 | 101,500 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,554 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,750 |
| Capitals of French Regions | 0 | - | 4.45 | 16,185 |
| Kings of France Quiz | 0 | - | 4.21 | 32,934 |
| Capitals of German States | 0 | - | 4.74 | 29,074 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,547 |
| Ancient Greek Words | 0 | - | 4.93 | 112,513 |
| Serie A Champions | 0 | - | 4.29 | 58,836 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,181 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,266 |
| British to American Food Translation | 0 | - | 3.38 | 52,050 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,571 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,821 |
| Beatles Lyrics First Names | 0 | - | 4.36 | 40,207 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 41,048 |
| Famous Scottish People | 0 | - | 4.22 | 18,441 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,770 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,444 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,604 |
| Australian Capitals | 0 | - | 4.92 | 62,836 |
| European Physical Geography | 0 | - | 4.26 | 33,599 |
| Geography of Russia | 0 | - | 4.57 | 21,604 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,136 |
| History of Austria | 0 | - | 4.70 | 17,977 |
| Austria Country Quiz | 0 | - | 4.57 | 60,063 |
