| England or Wales? | 0 | - | 4.94 | 45,372 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,661 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,117 |
| Austria... or Australia? | 0 | - | 4.68 | 103,931 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,909 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,897 |
| Departments of France | 0 | - | 4.93 | 52,952 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,389 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,660 |
| Official European Union Languages | 0 | - | 4.97 | 237,103 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,929 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,554 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,801 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,546 |
| The Trojan War | 0 | - | 4.83 | 39,469 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,717 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,116 |
| Roman Emperors | 0 | - | 4.95 | 118,619 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,578 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,589 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,498 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,591 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,926 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,096 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,312 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,970 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,074 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,571 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,254 |
| Celtic Nations | 0 | - | 4.69 | 46,833 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,451 |
| Champions League Winners | 0 | - | 4.92 | 997,458 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,437 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,308 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,383 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,924 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,369 |
| Countries Bordering France | 0 | - | 4.83 | 400,012 |
| States of Germany | 0 | - | 4.96 | 150,362 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,121 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,300 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,588 |
| Regions of Italy | 0 | - | 4.92 | 74,852 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,732 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,504 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,397 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,283 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,083 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,559 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,190 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,799 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,444 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,371 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,344 |
| Germany Country Quiz | 0 | - | 4.82 | 156,722 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,274 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,804 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,791 |
| Italy Country Quiz | 0 | - | 4.82 | 122,341 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,531 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,204 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,017 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,163 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,746 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,081 |
| UK Immigration by Country | 0 | - | 4.94 | 139,797 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,386 |
| British Monopoly Board | 0 | - | 4.52 | 41,046 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,472 |
| Name the English Monarchs | 0 | - | 4.92 | 498,526 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,676 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,466 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,609 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,050 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,259 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,897 |
| Slavic Languages | 0 | - | 4.67 | 54,027 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,443 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,560 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,849 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,839 |
| France A-Z | 0 | - | 4.16 | 38,077 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,579 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,850 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,665 |
| French History Multiple Choice | 0 | - | 4.55 | 32,894 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,493 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,577 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,532 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,652 |
| Name that Greek Letter | 0 | - | 4.94 | 321,872 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,984 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,471 |
| Counties of Ireland | 0 | - | 4.92 | 193,283 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,448 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,503 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,949 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,453 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,565 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,709 |
| Roman Names for Places | 0 | - | 4.62 | 57,919 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,451 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,747 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,269 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,485 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,470 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,521 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,192 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,596 |
| Switzerland A-Z | 0 | - | 4.45 | 25,524 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,471 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,930 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,380 |
| UK General Knowledge Multiple Choice #1 | 0 | - | 4.24 | 20,677 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,845 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,481 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,498 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,980 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,852 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,826 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,842 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,463 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 48,948 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,239 |
| History of Russia Quiz | 0 | - | 4.49 | 31,803 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,109 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,747 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,012 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,896 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,506 |
| Famous Irish People | 0 | - | 4.05 | 45,869 |
| History of Italy | 0 | - | 4.55 | 31,845 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,241 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,294 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,006 |
| Geography of Spain | 0 | - | 4.59 | 21,981 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,828 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,586 |
| London A-Z | 0 | - | 4.10 | 40,656 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,699 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,472 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,966 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,920 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,773 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,282 |
| European Geography By Letter - M | 0 | - | 4.61 | 129,016 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,727 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,682 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,062 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,381 |
| Europe Map Quiz | 0 | - | 5.00 | 4,734,781 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,023 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,655 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,980 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,016 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,644 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,206 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,661 |
| Capitals of French Regions | 0 | - | 4.45 | 15,994 |
| Regions of France | 0 | - | 4.78 | 119,431 |
| France Immigration by Country | 0 | - | 4.72 | 76,025 |
| Kings of France Quiz | 0 | - | 4.20 | 32,577 |
| Famous Germans | 0 | - | 4.50 | 54,672 |
| German Groups of Things | 0 | - | 4.46 | 38,323 |
| Capitals of German States | 0 | - | 4.74 | 28,821 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,115 |
| Germany True or False? | 0 | - | 4.61 | 48,559 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,532 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,430 |
| Ancient Greek Words | 0 | - | 4.92 | 110,808 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,621 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,119 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,665 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,880 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,083 |
| British to American Food Translation | 0 | - | 3.38 | 51,866 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,064 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,295 |
| The UK for Americans - True or False | 0 | - | 4.44 | 58,432 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,411 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,319 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,453 |
| Famous Scottish People | 0 | - | 4.22 | 18,336 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,278 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,797 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,117 |
| Australian Capitals | 0 | - | 4.92 | 62,600 |
| European Physical Geography | 0 | - | 4.26 | 33,384 |
| Geography of Russia | 0 | - | 4.57 | 21,440 |
| History of Austria | 0 | - | 4.70 | 17,767 |
| Austria Country Quiz | 0 | - | 4.57 | 59,399 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,304 |
| France Country Quiz | 0 | - | 4.70 | 133,952 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,942 |
| Geography of the French Empire | 0 | - | 4.45 | 26,950 |
| The French Revolution | 0 | - | 4.46 | 23,805 |
| France Multiple Choice | 0 | - | 4.38 | 40,647 |
| Tour de France Winners | 0 | - | 4.27 | 15,238 |
| History of France | 0 | - | 4.59 | 56,210 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,397 |
