| Departments of France | 0 | - | 4.93 | 55,240 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,687 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,981 |
| States of Germany | 0 | - | 4.95 | 154,670 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,734 |
| Regions of Italy | 0 | - | 4.92 | 77,148 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,831 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,414 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,798 |
| Regions of France | 0 | - | 4.70 | 122,202 |
| France Immigration by Country | 0 | - | 4.70 | 76,960 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,753 |
| England or Wales? | 0 | - | 4.94 | 45,985 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,781 |
| Official European Union Languages | 0 | - | 4.97 | 239,887 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,709 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,080 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,106 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,285 |
| Name that Greek Letter | 0 | - | 4.93 | 325,083 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,339 |
| Famous French People | 0 | - | 4.05 | 36,123 |
| Word Chain - France | 0 | - | 4.38 | 42,948 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,735 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,065 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,895 |
| French History Multiple Choice | 0 | - | 4.55 | 33,249 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,513 |
| Celtic Nations | 0 | - | 4.61 | 47,107 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,974 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,062 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,906 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,066 |
| Capitals of French Regions | 0 | - | 4.45 | 16,185 |
| France A-Z | 0 | - | 4.16 | 38,347 |
| Famous Germans | 0 | - | 4.50 | 55,814 |
| German Groups of Things | 0 | - | 4.47 | 38,645 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,710 |
| Germany True or False? | 0 | - | 4.61 | 49,034 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,476 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,527 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,445 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,821 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,416 |
| Counties of England | 0 | - | 4.97 | 803,392 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,862 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,825 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,004 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,126 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,339 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,034 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,815 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,955 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,029 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,644 |
| Movies Set in France | 0 | - | 4.26 | 13,153 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,707 |
| French Inventions | 0 | - | 4.10 | 13,929 |
| History of Paris | 0 | - | 4.24 | 13,682 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,860 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,571 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,564 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,127 |
| Champions League Winners | 0 | - | 4.92 | 1,016,744 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,768 |
| Geography of the French Empire | 0 | - | 4.45 | 27,221 |
| The French Revolution | 0 | - | 4.47 | 24,153 |
| France Multiple Choice | 0 | - | 4.39 | 40,857 |
| Kings of France Quiz | 0 | - | 4.21 | 32,938 |
| History of France | 0 | - | 4.61 | 57,660 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,404 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,070 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,391 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,844 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,758 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,022 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,024 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,031 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,955 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,867 |
| Presidents of France | 0 | - | 4.25 | 24,347 |
| Germany Country Quiz | 0 | - | 4.82 | 158,910 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,126 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,250 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,054 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,286 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,095 |
| Italian Foods | 0 | - | 4.30 | 73,309 |
| The Mafia Quiz | 0 | - | 4.46 | 23,442 |
| History of The Netherlands | 0 | - | 4.46 | 17,558 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,539 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,934 |
| Canary Islands | 0 | - | 4.62 | 17,544 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,996 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,094 |
| British Spellings | 0 | - | 4.06 | 99,613 |
| British Groups of Things | 0 | - | 4.26 | 83,027 |
| British Acronyms | 0 | - | 4.40 | 45,949 |
| UK Immigration by Country | 0 | - | 4.94 | 141,777 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,117 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,105 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,861 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,158 |
| Geography of Scotland | 0 | - | 4.63 | 21,749 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,257 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,857 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,755 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,724 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,367 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,787 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,984 |
| Slavic Languages | 0 | - | 4.67 | 54,716 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,985 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,673 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,149 |
| Tour de France Winners | 0 | - | 4.27 | 15,525 |
| History of Germany | 0 | - | 4.39 | 52,983 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,748 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,711 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,640 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,317 |
| Languages of Spain | 0 | - | 4.36 | 23,451 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,915 |
| Switzerland A-Z | 0 | - | 4.45 | 25,776 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,990 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,093 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,108 |
| Malta Country Quiz | 0 | - | 4.81 | 31,244 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,882 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,353 |
| French Foods | 0 | - | 4.00 | 27,780 |
| Word Chain - Germany | 0 | - | 4.31 | 22,689 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,585 |
| The Trojan War | 0 | - | 4.83 | 40,008 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,031 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,656 |
| History of Italy | 0 | - | 4.55 | 32,160 |
| Word Chain - Italy | 0 | - | 4.07 | 23,225 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,425 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,168 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,618 |
| Roman Emperors | 0 | - | 4.95 | 121,282 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,830 |
| Famous Nordic People | 0 | - | 4.34 | 20,317 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,645 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,437 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,417 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,580 |
| People on Money - England | 0 | - | 4.29 | 16,647 |
| Name a Valid English City | 0 | - | 4.19 | 16,832 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,813 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,484 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,279 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,676 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,141 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,309 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,205 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,687 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,233 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,848 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,131 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,723 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,897 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,539 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,205 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,476 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,439 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,526 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.74 | 66,005 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,562 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,754 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,169 |
| Capitals of German States | 0 | - | 4.74 | 29,077 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,554 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,955 |
| Ancient Greek Words | 0 | - | 4.93 | 112,544 |
| British to American Food Translation | 0 | - | 3.38 | 52,055 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,578 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,450 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,860 |
| Famous Scottish People | 0 | - | 4.22 | 18,442 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,760 |
| Australian Capitals | 0 | - | 4.92 | 62,840 |
| European Physical Geography | 0 | - | 4.26 | 33,601 |
| Geography of Russia | 0 | - | 4.57 | 21,607 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,139 |
| History of Austria | 0 | - | 4.70 | 17,978 |
| Austria Country Quiz | 0 | - | 4.57 | 60,076 |
| Belgium Country Quiz | 0 | - | 4.72 | 72,282 |
| France Country Quiz | 0 | - | 4.70 | 135,709 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,375 |
| France World Cup Squad 2018 | 0 | - | 4.41 | 34,180 |
| Ligue 1 Champions | 0 | - | 4.22 | 48,886 |
| Embarrassing Chapters in French History | 0 | - | 3.65 | 20,174 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,564 |
| Greece Country Quiz | 0 | - | 4.74 | 66,663 |
| Italy Country Quiz | 0 | - | 4.77 | 124,100 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,998 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,538 |
