| England or Wales? | 0 | - | 4.94 | 45,504 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,906 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,904 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,187 |
| Departments of France | 0 | - | 4.93 | 53,401 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,452 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,872 |
| Official European Union Languages | 0 | - | 4.97 | 237,715 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,354 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,637 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,644 |
| Austria... or Australia? | 0 | - | 4.68 | 104,121 |
| The Trojan War | 0 | - | 4.83 | 39,581 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,210 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,306 |
| Roman Emperors | 0 | - | 4.95 | 119,350 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,763 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,644 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,675 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,126 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,416 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,606 |
| 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 | 352,723 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,321 |
| Celtic Nations | 0 | - | 4.69 | 46,877 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,410 |
| Champions League Winners | 0 | - | 4.92 | 1,001,070 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,322 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,638 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,633 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,719 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,382 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,402 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,867 |
| Countries Bordering France | 0 | - | 4.83 | 401,236 |
| States of Germany | 0 | - | 4.96 | 151,178 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,599 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,075 |
| Regions of Italy | 0 | - | 4.92 | 75,246 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 49,861 |
| The Vikings! | 0 | - | 4.46 | 28,290 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,234 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,763 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,461 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,191 |
| 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 | 231,902 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,792 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,164 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,015 |
| Germany Country Quiz | 0 | - | 4.82 | 157,238 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,611 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,875 |
| 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 | 148,867 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,518 |
| 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 | 115,466 |
| UK Immigration by Country | 0 | - | 4.94 | 140,403 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,019 |
| British Monopoly Board | 0 | - | 4.52 | 41,103 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,923 |
| Name the English Monarchs | 0 | - | 4.92 | 500,272 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,314 |
| 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 | 113,909 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,159 |
| Slavic Languages | 0 | - | 4.68 | 54,167 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,542 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,592 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,049 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,231 |
| 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 | 71,985 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,896 |
| French History Multiple Choice | 0 | - | 4.55 | 32,957 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,852 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,493 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,779 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,821 |
| Name that Greek Letter | 0 | - | 4.93 | 322,619 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,275 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,546 |
| Counties of Ireland | 0 | - | 4.92 | 194,106 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,529 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,653 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,155 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,955 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,639 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,798 |
| Roman Names for Places | 0 | - | 4.62 | 58,069 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,730 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,969 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,365 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,541 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,276 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,678 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,879 |
| 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 | 74,694 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,554 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,594 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,915 |
| 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 | 110,074 |
| 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 | 49,122 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,616 |
| 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 | 498,568 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,146 |
| 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 | 43,724 |
| 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 | 40,707 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,449 |
| 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 | 92,822 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,451 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,626 |
| Europe Map Quiz | 0 | - | 5.00 | 4,747,233 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,148 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,793 |
| 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 | 120,011 |
| France Immigration by Country | 0 | - | 4.72 | 76,238 |
| 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 | 47,751 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,455 |
| Ancient Greek Words | 0 | - | 4.93 | 111,135 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,920 |
| 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 | 41,080 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,161 |
| British to American Food Translation | 0 | - | 3.38 | 51,910 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,861 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,365 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,510 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,468 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,126 |
| 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 | 278,226 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,167 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,787 |
| Australian Capitals | 0 | - | 4.92 | 62,665 |
| European Physical Geography | 0 | - | 4.26 | 33,430 |
| Geography of Russia | 0 | - | 4.57 | 21,486 |
| History of Austria | 0 | - | 4.70 | 17,808 |
| Austria Country Quiz | 0 | - | 4.57 | 59,548 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,508 |
| France Country Quiz | 0 | - | 4.70 | 134,530 |
| 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 | 23,871 |
| 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 | 23,431 |
