| Departments of France | 0 | - | 4.93 | 54,227 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,845 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,840 |
| States of Germany | 0 | - | 4.95 | 152,776 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,121 |
| Regions of Italy | 0 | - | 4.92 | 76,001 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,253 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,084 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,257 |
| Regions of France | 0 | - | 4.72 | 120,931 |
| France Immigration by Country | 0 | - | 4.70 | 76,568 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,562 |
| England or Wales? | 0 | - | 4.94 | 45,728 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,196 |
| Official European Union Languages | 0 | - | 4.97 | 238,628 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,941 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,417 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,796 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,919 |
| Name that Greek Letter | 0 | - | 4.93 | 323,853 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,017 |
| Famous French People | 0 | - | 4.07 | 35,650 |
| Word Chain - France | 0 | - | 4.38 | 42,793 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,255 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,859 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,153 |
| French History Multiple Choice | 0 | - | 4.55 | 33,071 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,166 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,401 |
| Celtic Nations | 0 | - | 4.69 | 46,960 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,905 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,422 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,734 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,162 |
| Capitals of French Regions | 0 | - | 4.45 | 16,086 |
| France A-Z | 0 | - | 4.16 | 38,219 |
| Famous Germans | 0 | - | 4.50 | 55,333 |
| German Groups of Things | 0 | - | 4.46 | 38,487 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,382 |
| Germany True or False? | 0 | - | 4.61 | 48,835 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,080 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,055 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,541 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,413 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,284 |
| Counties of England | 0 | - | 4.97 | 797,547 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,298 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,650 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,488 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,500 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,193 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,704 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,067 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,517 |
| Movies Set in France | 0 | - | 4.26 | 13,124 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,538 |
| French Inventions | 0 | - | 4.08 | 13,900 |
| History of Paris | 0 | - | 4.24 | 13,655 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,913 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,741 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,046 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,810 |
| Champions League Winners | 0 | - | 4.92 | 1,007,552 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,516 |
| Geography of the French Empire | 0 | - | 4.45 | 27,103 |
| The French Revolution | 0 | - | 4.47 | 23,993 |
| France Multiple Choice | 0 | - | 4.39 | 40,748 |
| Kings of France Quiz | 0 | - | 4.20 | 32,762 |
| History of France | 0 | - | 4.59 | 57,081 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,158 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,919 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,070 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,713 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,273 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,465 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,022 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,255 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,709 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,859 |
| Presidents of France | 0 | - | 4.25 | 24,158 |
| Germany Country Quiz | 0 | - | 4.83 | 157,957 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,420 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,026 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,929 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,474 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,129 |
| Italian Foods | 0 | - | 4.30 | 72,823 |
| The Mafia Quiz | 0 | - | 4.46 | 23,335 |
| History of The Netherlands | 0 | - | 4.46 | 17,444 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,986 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,741 |
| Canary Islands | 0 | - | 4.62 | 17,485 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,085 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,743 |
| British Spellings | 0 | - | 4.06 | 99,467 |
| British Groups of Things | 0 | - | 4.25 | 82,883 |
| British Acronyms | 0 | - | 4.40 | 45,811 |
| UK Immigration by Country | 0 | - | 4.94 | 140,985 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,044 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,917 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,726 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,848 |
| Geography of Scotland | 0 | - | 4.63 | 21,630 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,511 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,120 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,614 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,662 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,750 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,113 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,510 |
| Slavic Languages | 0 | - | 4.68 | 54,392 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,081 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,629 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,068 |
| Tour de France Winners | 0 | - | 4.27 | 15,385 |
| History of Germany | 0 | - | 4.39 | 52,849 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,632 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,488 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,622 |
| Languages of Spain | 0 | - | 4.36 | 23,329 |
| Switzerland A-Z | 0 | - | 4.45 | 25,656 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,709 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,026 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,792 |
| Malta Country Quiz | 0 | - | 4.81 | 31,075 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,337 |
| History of Russia Quiz | 0 | - | 4.47 | 31,930 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,749 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,246 |
| French Foods | 0 | - | 4.00 | 27,704 |
| Word Chain - Germany | 0 | - | 4.31 | 22,593 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,079 |
| The Trojan War | 0 | - | 4.83 | 39,752 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,960 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,144 |
| History of Italy | 0 | - | 4.55 | 31,997 |
| Word Chain - Italy | 0 | - | 4.07 | 23,170 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,830 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,113 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,568 |
| Roman Emperors | 0 | - | 4.95 | 120,165 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,676 |
| Famous Nordic People | 0 | - | 4.34 | 20,140 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,615 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,255 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,346 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,535 |
| People on Money - England | 0 | - | 4.29 | 16,617 |
| Name a Valid English City | 0 | - | 4.19 | 16,734 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,311 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,420 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,713 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,129 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,755 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,618 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,797 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,636 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,934 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,784 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,073 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,523 |
| Europe Map Quiz | 0 | - | 5.00 | 4,765,361 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,304 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,969 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,252 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,251 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,674 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.74 | 65,747 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,485 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,970 |
| Capitals of German States | 0 | - | 4.74 | 28,971 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,357 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,161 |
| Ancient Greek Words | 0 | - | 4.93 | 111,702 |
| British to American Food Translation | 0 | - | 3.38 | 51,969 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,460 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,445 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,827 |
| Famous Scottish People | 0 | - | 4.22 | 18,402 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,952 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,820 |
| Australian Capitals | 0 | - | 4.92 | 62,734 |
| European Physical Geography | 0 | - | 4.26 | 33,520 |
| Geography of Russia | 0 | - | 4.57 | 21,542 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,979 |
| History of Austria | 0 | - | 4.70 | 17,870 |
| Austria Country Quiz | 0 | - | 4.57 | 59,781 |
| Belgium Country Quiz | 0 | - | 4.73 | 71,848 |
| France Country Quiz | 0 | - | 4.70 | 135,042 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,186 |
| France World Cup Squad 2018 | 0 | - | 4.41 | 33,738 |
| Ligue 1 Champions | 0 | - | 4.21 | 48,515 |
| Embarrassing Chapters in French History | 0 | - | 3.65 | 20,121 |
| Greece Country Quiz | 0 | - | 4.74 | 66,309 |
| Italy Country Quiz | 0 | - | 4.80 | 123,462 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,383 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,182 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,774 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,525 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,567 |
