| Regions of Italy | 0 | - | 4.92 | 76,628 |
| Departments of France | 0 | - | 4.93 | 54,819 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,692 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,624 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,799 |
| States of Germany | 0 | - | 4.95 | 153,905 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,501 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,633 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,956 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,576 |
| Regions of France | 0 | - | 4.70 | 121,688 |
| France Immigration by Country | 0 | - | 4.70 | 76,818 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,987 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,298 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,553 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,551 |
| England or Wales? | 0 | - | 4.94 | 45,880 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,539 |
| Official European Union Languages | 0 | - | 4.97 | 239,381 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,410 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,071 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,001 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,207 |
| Famous French People | 0 | - | 4.07 | 35,980 |
| Word Chain - France | 0 | - | 4.38 | 42,895 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,557 |
| Italian Foods | 0 | - | 4.30 | 73,107 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,453 |
| Roman Emperors | 0 | - | 4.95 | 120,827 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,988 |
| French History Multiple Choice | 0 | - | 4.55 | 33,170 |
| History of Italy | 0 | - | 4.55 | 32,105 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,465 |
| Celtic Nations | 0 | - | 4.61 | 47,057 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,866 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,065 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,761 |
| Capitals of French Regions | 0 | - | 4.45 | 16,151 |
| France A-Z | 0 | - | 4.16 | 38,305 |
| Famous Germans | 0 | - | 4.50 | 55,649 |
| German Groups of Things | 0 | - | 4.47 | 38,585 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,602 |
| Germany True or False? | 0 | - | 4.61 | 48,957 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,326 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,301 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,853 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,036 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,618 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,375 |
| Counties of England | 0 | - | 4.97 | 800,992 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,626 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,759 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,894 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,515 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,579 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 88,187 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,667 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,770 |
| Movies Set in France | 0 | - | 4.26 | 13,139 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,306 |
| French Inventions | 0 | - | 4.10 | 13,918 |
| History of Paris | 0 | - | 4.24 | 13,667 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,493 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,144 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,924 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,402 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,840 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,349 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,631 |
| Champions League Winners | 0 | - | 4.92 | 1,012,695 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,679 |
| Geography of the French Empire | 0 | - | 4.45 | 27,193 |
| The French Revolution | 0 | - | 4.47 | 24,108 |
| France Multiple Choice | 0 | - | 4.39 | 40,805 |
| Kings of France Quiz | 0 | - | 4.20 | 32,868 |
| History of France | 0 | - | 4.61 | 57,445 |
| Italy Country Quiz | 0 | - | 4.77 | 123,856 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,302 |
| Spain Country Quiz | 0 | - | 4.44 | 129,032 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,251 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,802 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,012 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,073 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,332 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,868 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,488 |
| Presidents of France | 0 | - | 4.25 | 24,290 |
| Germany Country Quiz | 0 | - | 4.83 | 158,538 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,868 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,164 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,997 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,293 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,850 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,552 |
| The Mafia Quiz | 0 | - | 4.46 | 23,407 |
| History of The Netherlands | 0 | - | 4.46 | 17,523 |
| Canary Islands | 0 | - | 4.62 | 17,508 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,944 |
| British Spellings | 0 | - | 4.06 | 99,548 |
| British Groups of Things | 0 | - | 4.25 | 82,968 |
| British Acronyms | 0 | - | 4.40 | 45,898 |
| UK Immigration by Country | 0 | - | 4.94 | 141,430 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,083 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,605 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,409 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,051 |
| Geography of Scotland | 0 | - | 4.63 | 21,704 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,556 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,699 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,698 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,133 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,215 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,763 |
| Slavic Languages | 0 | - | 4.68 | 54,593 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,656 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,111 |
| Tour de France Winners | 0 | - | 4.27 | 15,468 |
| History of Germany | 0 | - | 4.39 | 52,938 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,475 |
| Name that Greek Letter | 0 | - | 4.93 | 324,605 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,701 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,148 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,010 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 43,989 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,145 |
| Roman Names for Places | 0 | - | 4.62 | 58,598 |
| Byzantine History | 0 | - | 4.91 | 28,983 |
| Byzantine Emperors | 0 | - | 4.92 | 14,482 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,584 |
| Most Common First Names in Spain | 0 | - | 4.32 | 54,625 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,742 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 68,488 |
| Switzerland A-Z | 0 | - | 4.45 | 25,737 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,901 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,069 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,999 |
| Malta Country Quiz | 0 | - | 4.81 | 31,192 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,605 |
| History of Russia Quiz | 0 | - | 4.47 | 31,980 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,829 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,311 |
| French Foods | 0 | - | 4.00 | 27,750 |
| Word Chain - Germany | 0 | - | 4.31 | 22,656 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,410 |
| The Trojan War | 0 | - | 4.83 | 39,922 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,632 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,073 |
| Italian Inventions | 0 | - | 3.81 | 18,466 |
| Word Chain - Italy | 0 | - | 4.07 | 23,204 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,173 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,997 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,774 |
| Famous Nordic People | 0 | - | 4.34 | 20,234 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,627 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,372 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,906 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,214 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,381 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,562 |
| People on Money - England | 0 | - | 4.29 | 16,634 |
| Name a Valid English City | 0 | - | 4.19 | 16,783 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,243 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,005 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,605 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 120,968 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,362 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,978 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,650 |
| European Geography By Letter - M | 0 | - | 4.69 | 131,979 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,805 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,327 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,546 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,230 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,573 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,441 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,093 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,394 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,361 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,163 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,403 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,629 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,083 |
| Capitals of German States | 0 | - | 4.74 | 29,032 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,476 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,693 |
| Ancient Greek Words | 0 | - | 4.93 | 112,204 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,688 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,231 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,594 |
| British to American Food Translation | 0 | - | 3.38 | 52,013 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,537 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,771 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,527 |
| Famous Scottish People | 0 | - | 4.22 | 18,425 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,663 |
| Australian Capitals | 0 | - | 4.92 | 62,801 |
| European Physical Geography | 0 | - | 4.26 | 33,570 |
| Geography of Russia | 0 | - | 4.57 | 21,573 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,069 |
| History of Austria | 0 | - | 4.70 | 17,946 |
