| England or Wales? | 0 | - | 4.94 | 45,504 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,910 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,909 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,194 |
| Departments of France | 0 | - | 4.93 | 53,405 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,453 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,873 |
| Official European Union Languages | 0 | - | 4.97 | 237,716 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,356 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,666 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,644 |
| Austria... or Australia? | 0 | - | 4.68 | 104,122 |
| The Trojan War | 0 | - | 4.83 | 39,581 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,215 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,307 |
| Roman Emperors | 0 | - | 4.95 | 119,356 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,767 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,646 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,676 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,128 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,422 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,610 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,208 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,774 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,733 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,321 |
| Celtic Nations | 0 | - | 4.69 | 46,878 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,413 |
| Champions League Winners | 0 | - | 4.92 | 1,001,083 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,325 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,638 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,637 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,720 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,384 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,435 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,867 |
| Countries Bordering France | 0 | - | 4.83 | 401,242 |
| States of Germany | 0 | - | 4.96 | 151,181 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,601 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,079 |
| Regions of Italy | 0 | - | 4.92 | 75,251 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 49,941 |
| The Vikings! | 0 | - | 4.46 | 28,290 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,236 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,764 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,461 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,192 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,624 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,302 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,907 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,793 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,166 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,021 |
| Germany Country Quiz | 0 | - | 4.82 | 157,238 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,614 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,876 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,845 |
| Italy Country Quiz | 0 | - | 4.82 | 122,735 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,869 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,521 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,161 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,466 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,080 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,470 |
| UK Immigration by Country | 0 | - | 4.94 | 140,408 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,023 |
| British Monopoly Board | 0 | - | 4.52 | 41,103 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,924 |
| Name the English Monarchs | 0 | - | 4.92 | 500,280 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,317 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,515 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,628 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,317 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,917 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,161 |
| Slavic Languages | 0 | - | 4.68 | 54,168 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,543 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,592 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,050 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,233 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,003 |
| France A-Z | 0 | - | 4.16 | 38,116 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,710 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,986 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,899 |
| French History Multiple Choice | 0 | - | 4.55 | 32,957 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,856 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,501 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,779 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,839 |
| Name that Greek Letter | 0 | - | 4.93 | 322,625 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,276 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,546 |
| Counties of Ireland | 0 | - | 4.92 | 194,109 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,530 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,653 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,155 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,956 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,640 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,802 |
| Roman Names for Places | 0 | - | 4.62 | 58,071 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,734 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,969 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,366 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,541 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,278 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,678 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,883 |
| Switzerland A-Z | 0 | - | 4.45 | 25,582 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,581 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,973 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,695 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,558 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,594 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,920 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,056 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,902 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,077 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,023 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,652 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,123 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,619 |
| History of Russia Quiz | 0 | - | 4.49 | 31,850 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,160 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,840 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,085 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,577 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,149 |
| Famous Irish People | 0 | - | 4.05 | 45,913 |
| History of Italy | 0 | - | 4.55 | 31,908 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,483 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,572 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,725 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,343 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,103 |
| Geography of Spain | 0 | - | 4.59 | 22,021 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,927 |
| British Geography A-Z | 0 | - | 4.41 | 19,468 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,607 |
| London A-Z | 0 | - | 4.10 | 40,708 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,456 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,700 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,144 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,121 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,004 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,457 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,356 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,043 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,823 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,453 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,626 |
| Europe Map Quiz | 0 | - | 5.00 | 4,747,308 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,148 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,794 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,087 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,130 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,811 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,261 |
| Capitals of French Regions | 0 | - | 4.45 | 16,021 |
| Regions of France | 0 | - | 4.77 | 120,019 |
| France Immigration by Country | 0 | - | 4.72 | 76,240 |
| Kings of France Quiz | 0 | - | 4.20 | 32,637 |
| Famous Germans | 0 | - | 4.50 | 54,857 |
| German Groups of Things | 0 | - | 4.46 | 38,390 |
| Capitals of German States | 0 | - | 4.74 | 28,897 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,213 |
| Germany True or False? | 0 | - | 4.61 | 48,664 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,753 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,457 |
| Ancient Greek Words | 0 | - | 4.93 | 111,141 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,924 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,140 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,850 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,082 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,161 |
| British to American Food Translation | 0 | - | 3.38 | 51,912 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,864 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,365 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,511 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,468 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,127 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,180 |
| Famous Scottish People | 0 | - | 4.22 | 18,363 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,231 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,202 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,794 |
| Australian Capitals | 0 | - | 4.92 | 62,665 |
| European Physical Geography | 0 | - | 4.26 | 33,431 |
| Geography of Russia | 0 | - | 4.57 | 21,486 |
| History of Austria | 0 | - | 4.70 | 17,808 |
| Austria Country Quiz | 0 | - | 4.57 | 59,549 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,509 |
| France Country Quiz | 0 | - | 4.70 | 134,532 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,046 |
| Geography of the French Empire | 0 | - | 4.45 | 27,001 |
| The French Revolution | 0 | - | 4.46 | 23,872 |
| France Multiple Choice | 0 | - | 4.38 | 40,686 |
| Tour de France Winners | 0 | - | 4.27 | 15,298 |
| History of France | 0 | - | 4.59 | 56,650 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,432 |
