| England or Wales? | 0 | - | 4.94 | 45,478 |
| Austria... or Australia? | 0 | - | 4.68 | 104,093 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,663 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,648 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,287 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,946 |
| Departments of France | 0 | - | 4.93 | 53,270 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,429 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,837 |
| Official European Union Languages | 0 | - | 4.97 | 237,620 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,290 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,488 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,849 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,627 |
| The Trojan War | 0 | - | 4.83 | 39,552 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,130 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,269 |
| Roman Emperors | 0 | - | 4.95 | 119,204 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,735 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,637 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,086 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,227 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,361 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,189 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,734 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,390 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,314 |
| Celtic Nations | 0 | - | 4.69 | 46,871 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,178 |
| Champions League Winners | 0 | - | 4.92 | 1,000,472 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,607 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,571 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,669 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,299 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,215 |
| History of Austria | 0 | - | 4.70 | 17,796 |
| Countries Bordering France | 0 | - | 4.83 | 401,048 |
| States of Germany | 0 | - | 4.96 | 151,021 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,349 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,959 |
| Regions of Italy | 0 | - | 4.92 | 75,174 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,683 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,812 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,142 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,713 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,418 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,165 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,614 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,289 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,701 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,678 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,040 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,678 |
| Germany Country Quiz | 0 | - | 4.82 | 157,142 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,528 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,865 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,836 |
| Italy Country Quiz | 0 | - | 4.82 | 122,642 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,790 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,430 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,134 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,379 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,015 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,400 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,353 |
| UK Immigration by Country | 0 | - | 4.94 | 140,094 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,886 |
| British Monopoly Board | 0 | - | 4.52 | 41,096 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,813 |
| Name the English Monarchs | 0 | - | 4.92 | 499,992 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,201 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,501 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,626 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,263 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,805 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,103 |
| Slavic Languages | 0 | - | 4.68 | 54,147 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,524 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,588 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,017 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,150 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,998 |
| France A-Z | 0 | - | 4.16 | 38,111 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,690 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,970 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,856 |
| French History Multiple Choice | 0 | - | 4.55 | 32,940 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,797 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,336 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,733 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,468 |
| Name that Greek Letter | 0 | - | 4.93 | 322,493 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,235 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,534 |
| Counties of Ireland | 0 | - | 4.92 | 193,963 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,519 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,629 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,119 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,865 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,621 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,780 |
| Roman Names for Places | 0 | - | 4.62 | 58,043 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,630 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,942 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,335 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,535 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,193 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,650 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,326 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,816 |
| Switzerland A-Z | 0 | - | 4.45 | 25,575 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,559 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,967 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,631 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,428 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,572 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,829 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,038 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,892 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,030 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,995 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,500 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,098 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,558 |
| History of Russia Quiz | 0 | - | 4.49 | 31,839 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,151 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,822 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,074 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,300 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,028 |
| Famous Irish People | 0 | - | 4.05 | 45,903 |
| History of Italy | 0 | - | 4.55 | 31,893 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,423 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,557 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,334 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,091 |
| Geography of Spain | 0 | - | 4.59 | 22,018 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,902 |
| British Geography A-Z | 0 | - | 4.41 | 19,464 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,604 |
| London A-Z | 0 | - | 4.10 | 40,694 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,344 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,661 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,118 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,099 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,977 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,435 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,300 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,022 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,803 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,435 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,593 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,017 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,126 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,763 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,073 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,110 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,794 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,224 |
| Capitals of French Regions | 0 | - | 4.45 | 16,016 |
| Regions of France | 0 | - | 4.77 | 119,913 |
| France Immigration by Country | 0 | - | 4.72 | 76,171 |
| Kings of France Quiz | 0 | - | 4.20 | 32,625 |
| Famous Germans | 0 | - | 4.50 | 54,819 |
| German Groups of Things | 0 | - | 4.46 | 38,377 |
| Capitals of German States | 0 | - | 4.74 | 28,890 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,196 |
| Germany True or False? | 0 | - | 4.61 | 48,661 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,712 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,452 |
| Ancient Greek Words | 0 | - | 4.93 | 111,082 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,855 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,134 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,826 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,047 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,150 |
| British to American Food Translation | 0 | - | 3.38 | 51,906 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,816 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,354 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,500 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,455 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,993 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,111 |
| Famous Scottish People | 0 | - | 4.22 | 18,353 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,128 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,324 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,372 |
| Australian Capitals | 0 | - | 4.92 | 62,655 |
| European Physical Geography | 0 | - | 4.26 | 33,419 |
| Geography of Russia | 0 | - | 4.57 | 21,476 |
| Austria Country Quiz | 0 | - | 4.57 | 59,527 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,468 |
| France Country Quiz | 0 | - | 4.70 | 134,451 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,029 |
| Geography of the French Empire | 0 | - | 4.45 | 26,997 |
| The French Revolution | 0 | - | 4.46 | 23,857 |
| France Multiple Choice | 0 | - | 4.38 | 40,678 |
| Tour de France Winners | 0 | - | 4.27 | 15,287 |
| History of France | 0 | - | 4.59 | 56,591 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
