| England or Wales? | 0 | - | 4.94 | 45,518 |
| Austria... or Australia? | 0 | - | 4.68 | 104,142 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,216 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,802 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,046 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,348 |
| States of Germany | 0 | - | 4.96 | 151,310 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,664 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,294 |
| Departments of France | 0 | - | 4.93 | 53,450 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,466 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,888 |
| Official European Union Languages | 0 | - | 4.97 | 237,796 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,405 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,793 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,874 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,661 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,799 |
| The Trojan War | 0 | - | 4.83 | 39,592 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,276 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,325 |
| Roman Emperors | 0 | - | 4.95 | 119,411 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,780 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,661 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,690 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,147 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,521 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,771 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,995 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,331 |
| Celtic Nations | 0 | - | 4.69 | 46,880 |
| Famous Germans | 0 | - | 4.50 | 54,877 |
| German Groups of Things | 0 | - | 4.46 | 38,397 |
| Capitals of German States | 0 | - | 4.74 | 28,901 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,227 |
| Germany True or False? | 0 | - | 4.61 | 48,676 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,548 |
| Champions League Winners | 0 | - | 4.92 | 1,001,576 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,652 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,667 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,737 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,446 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,589 |
| History of Austria | 0 | - | 4.70 | 17,814 |
| Countries Bordering France | 0 | - | 4.83 | 401,354 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,441 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,169 |
| Regions of Italy | 0 | - | 4.92 | 75,304 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 50,770 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,935 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,310 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,794 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,472 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,202 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,628 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,321 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,048 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,855 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,248 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,135 |
| Germany Country Quiz | 0 | - | 4.82 | 157,294 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,673 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,883 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,851 |
| Italy Country Quiz | 0 | - | 4.82 | 122,780 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,906 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,589 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,174 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,506 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,130 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,516 |
| UK Immigration by Country | 0 | - | 4.94 | 140,455 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,085 |
| British Monopoly Board | 0 | - | 4.52 | 41,108 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,962 |
| Name the English Monarchs | 0 | - | 4.92 | 500,505 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,393 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,519 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,634 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,347 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,998 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,190 |
| Slavic Languages | 0 | - | 4.68 | 54,190 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,555 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,594 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,067 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,287 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,006 |
| France A-Z | 0 | - | 4.16 | 38,121 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,722 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,015 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,925 |
| French History Multiple Choice | 0 | - | 4.55 | 32,961 |
| Geography of Germany | 0 | - | 4.35 | 17,140 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,904 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,606 |
| History of Germany | 0 | - | 4.39 | 52,739 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,077 |
| Name that Greek Letter | 0 | - | 4.93 | 322,724 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,315 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,559 |
| Counties of Ireland | 0 | - | 4.92 | 194,194 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,535 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,664 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,188 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,362 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,648 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,811 |
| Roman Names for Places | 0 | - | 4.62 | 58,089 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,768 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,997 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,378 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,546 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,336 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,700 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,402 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,921 |
| Switzerland A-Z | 0 | - | 4.45 | 25,589 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,594 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,976 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,726 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,677 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,620 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,958 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,062 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,905 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,102 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,446 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,524 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,135 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,666 |
| History of Russia Quiz | 0 | - | 4.49 | 31,858 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,166 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,850 |
| Word Chain - Germany | 0 | - | 4.31 | 22,536 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,091 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,738 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,208 |
| Famous Irish People | 0 | - | 4.05 | 45,917 |
| History of Italy | 0 | - | 4.55 | 31,911 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,522 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,585 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,350 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,114 |
| Geography of Spain | 0 | - | 4.59 | 22,023 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,943 |
| British Geography A-Z | 0 | - | 4.41 | 19,475 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,609 |
| London A-Z | 0 | - | 4.10 | 40,715 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,523 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,730 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,162 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,134 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,022 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,478 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,381 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,054 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,829 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,463 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,648 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,639 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,156 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,809 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,093 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,136 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,822 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,282 |
| Capitals of French Regions | 0 | - | 4.45 | 16,025 |
| Regions of France | 0 | - | 4.77 | 120,089 |
| France Immigration by Country | 0 | - | 4.72 | 76,271 |
| Kings of France Quiz | 0 | - | 4.20 | 32,638 |
| German Loan Words | 0 | - | 4.27 | 135,650 |
| German History A-Z | 0 | - | 4.49 | 24,531 |
| German Inventions | 0 | - | 3.91 | 30,211 |
| Embarrassing Chapters in German History | 0 | - | 3.41 | 12,605 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,767 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,459 |
| Ancient Greek Words | 0 | - | 4.93 | 111,176 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,961 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,147 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,876 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,110 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,167 |
| British to American Food Translation | 0 | - | 3.38 | 51,915 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,907 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,371 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,522 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,482 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,202 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,235 |
| Famous Scottish People | 0 | - | 4.22 | 18,366 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,322 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,746 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,086 |
| Australian Capitals | 0 | - | 4.92 | 62,670 |
| European Physical Geography | 0 | - | 4.26 | 33,437 |
| Geography of Russia | 0 | - | 4.57 | 21,492 |
| Austria Country Quiz | 0 | - | 4.57 | 59,557 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,527 |
| France Country Quiz | 0 | - | 4.70 | 134,565 |
