| Regions of Italy | 0 | - | 4.92 | 75,231 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,446 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,854 |
| States of Germany | 0 | - | 4.96 | 151,133 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,552 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 49,027 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,204 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,758 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,120 |
| Departments of France | 0 | - | 4.93 | 53,335 |
| Italy Country Quiz | 0 | - | 4.82 | 122,702 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,855 |
| England or Wales? | 0 | - | 4.94 | 45,497 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,861 |
| Official European Union Languages | 0 | - | 4.97 | 237,689 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,335 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,605 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,294 |
| Roman Emperors | 0 | - | 4.95 | 119,260 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,754 |
| Italian Foods | 0 | - | 4.31 | 72,473 |
| History of Italy | 0 | - | 4.55 | 31,906 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,671 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,112 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,386 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,541 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,200 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,765 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,485 |
| Counties of England | 0 | - | 4.97 | 792,699 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,584 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,091 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,162 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,625 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,317 |
| Celtic Nations | 0 | - | 4.69 | 46,873 |
| Regions of France | 0 | - | 4.77 | 119,990 |
| France Immigration by Country | 0 | - | 4.72 | 76,221 |
| Famous Germans | 0 | - | 4.50 | 54,849 |
| German Groups of Things | 0 | - | 4.46 | 38,384 |
| Germany True or False? | 0 | - | 4.61 | 48,664 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,739 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,906 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,195 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,842 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,071 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,157 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,330 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,848 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,509 |
| Champions League Winners | 0 | - | 4.92 | 1,000,905 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,627 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,613 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,706 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,357 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,355 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,804 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,180 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,069 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,894 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,360 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,676 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,454 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,622 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,297 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,840 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,766 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,130 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,843 |
| Word Chain - France | 0 | - | 4.38 | 42,679 |
| Germany Country Quiz | 0 | - | 4.82 | 157,209 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,579 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,871 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,844 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,883 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,487 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,157 |
| The Mafia Quiz | 0 | - | 4.46 | 23,254 |
| Byzantine History | 0 | - | 4.91 | 28,707 |
| History of The Netherlands | 0 | - | 4.46 | 17,364 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,446 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,061 |
| Canary Islands | 0 | - | 4.61 | 17,439 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,450 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,428 |
| British Spellings | 0 | - | 4.06 | 99,358 |
| British Groups of Things | 0 | - | 4.25 | 82,780 |
| British Acronyms | 0 | - | 4.39 | 45,708 |
| UK Immigration by Country | 0 | - | 4.94 | 140,378 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,994 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,993 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,888 |
| Geography of Scotland | 0 | - | 4.63 | 21,553 |
| Elton John Quiz | 0 | - | 4.48 | 18,440 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,290 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,513 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,627 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,308 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,889 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,146 |
| Slavic Languages | 0 | - | 4.68 | 54,153 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,639 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,538 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,590 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,002 |
| France A-Z | 0 | - | 4.16 | 38,115 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,886 |
| French History Multiple Choice | 0 | - | 4.55 | 32,952 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,773 |
| History of Germany | 0 | - | 4.39 | 52,727 |
| The Trojan War | 0 | - | 4.83 | 39,575 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,706 |
| Name that Greek Letter | 0 | - | 4.93 | 322,584 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,192 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,525 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,642 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,137 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,926 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,632 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,795 |
| Roman Names for Places | 0 | - | 4.62 | 58,064 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,707 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,361 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,541 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,359 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,864 |
| Switzerland A-Z | 0 | - | 4.45 | 25,581 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,572 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,971 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,795 |
| Malta Country Quiz | 0 | - | 4.81 | 30,942 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,598 |
| History of Russia Quiz | 0 | - | 4.49 | 31,847 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,643 |
| Famous French People | 0 | - | 4.12 | 28,142 |
| Movies Set in France | 0 | - | 4.26 | 13,100 |
| French Inventions | 0 | - | 4.08 | 13,877 |
| History of Paris | 0 | - | 4.24 | 13,629 |
| Word Chain - Germany | 0 | - | 4.31 | 22,527 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,314 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,114 |
| Italian Inventions | 0 | - | 3.81 | 18,424 |
| Word Chain - Italy | 0 | - | 4.07 | 23,135 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,463 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,570 |
| Famous Nordic People | 0 | - | 4.34 | 19,989 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,569 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,100 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,302 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,501 |
| People on Money - England | 0 | - | 4.29 | 16,591 |
| Name a Valid English City | 0 | - | 4.19 | 16,674 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,066 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,508 |
| Imagine Lyrics | 0 | - | 4.53 | 43,146 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,748 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,427 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,693 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,138 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,117 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,995 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,451 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,345 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,036 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,815 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,446 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,617 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,570 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,141 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,785 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,083 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,125 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,803 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,254 |
| Capitals of French Regions | 0 | - | 4.45 | 16,019 |
| Kings of France Quiz | 0 | - | 4.20 | 32,632 |
| Capitals of German States | 0 | - | 4.74 | 28,895 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,207 |
| Ancient Greek Words | 0 | - | 4.93 | 111,121 |
| Serie A Champions | 0 | - | 4.29 | 57,984 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,022 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,140 |
| British to American Food Translation | 0 | - | 3.38 | 51,909 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,361 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,466 |
| Beatles Lyrics First Names | 0 | - | 4.38 | 34,579 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,489 |
| Famous Scottish People | 0 | - | 4.22 | 18,362 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,190 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,922 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,695 |
| Australian Capitals | 0 | - | 4.92 | 62,660 |
| European Physical Geography | 0 | - | 4.26 | 33,427 |
| Geography of Russia | 0 | - | 4.57 | 21,484 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,860 |
| History of Austria | 0 | - | 4.70 | 17,807 |
| Austria Country Quiz | 0 | - | 4.57 | 59,542 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,497 |
| France Country Quiz | 0 | - | 4.70 | 134,508 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,041 |
