| England or Wales? | 0 | - | 4.94 | 45,700 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,635 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,363 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,580 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,570 |
| States of Germany | 0 | - | 4.96 | 152,650 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,055 |
| Regions of Italy | 0 | - | 4.92 | 75,916 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,188 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,976 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,222 |
| Departments of France | 0 | - | 4.93 | 54,153 |
| Germany True or False? | 0 | - | 4.61 | 48,812 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,551 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,634 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,145 |
| Official European Union Languages | 0 | - | 4.97 | 238,549 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,885 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,276 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,994 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,840 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,735 |
| French History Multiple Choice | 0 | - | 4.55 | 33,046 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,798 |
| Australia True or False | 0 | - | 4.87 | 56,866 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,387 |
| Celtic Nations | 0 | - | 4.69 | 46,951 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,385 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,601 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 171,955 |
| Regions of France | 0 | - | 4.72 | 120,827 |
| France Immigration by Country | 0 | - | 4.70 | 76,531 |
| Famous Germans | 0 | - | 4.50 | 55,304 |
| German Groups of Things | 0 | - | 4.46 | 38,481 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,018 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,033 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,515 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,366 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,274 |
| Counties of England | 0 | - | 4.97 | 797,007 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,263 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,128 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,155 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,637 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,004 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,307 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,467 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,852 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,608 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,014 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,681 |
| Champions League Winners | 0 | - | 4.92 | 1,007,002 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,499 |
| France Multiple Choice | 0 | - | 4.39 | 40,743 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,135 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,043 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,331 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,705 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,320 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,862 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,160 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,699 |
| Famous French People | 0 | - | 4.06 | 35,603 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,785 |
| Word Chain - France | 0 | - | 4.38 | 42,782 |
| Germany Country Quiz | 0 | - | 4.83 | 157,882 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,364 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,001 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,914 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,421 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,074 |
| Italian Foods | 0 | - | 4.30 | 72,796 |
| The Mafia Quiz | 0 | - | 4.46 | 23,326 |
| History of The Netherlands | 0 | - | 4.46 | 17,437 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,944 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,686 |
| Canary Islands | 0 | - | 4.62 | 17,482 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,018 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,714 |
| British Spellings | 0 | - | 4.06 | 99,458 |
| British Groups of Things | 0 | - | 4.25 | 82,872 |
| British Acronyms | 0 | - | 4.40 | 45,801 |
| UK Immigration by Country | 0 | - | 4.94 | 140,919 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,038 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,834 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,642 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,818 |
| Geography of Scotland | 0 | - | 4.63 | 21,621 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,402 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,711 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,786 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,605 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,656 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,709 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,009 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,467 |
| Slavic Languages | 0 | - | 4.68 | 54,376 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,778 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,627 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,065 |
| France A-Z | 0 | - | 4.16 | 38,209 |
| History of Germany | 0 | - | 4.39 | 52,825 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,583 |
| Name that Greek Letter | 0 | - | 4.93 | 323,487 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,622 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,132 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,470 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,615 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,876 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,295 |
| Switzerland A-Z | 0 | - | 4.45 | 25,646 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,690 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,022 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,775 |
| Malta Country Quiz | 0 | - | 4.81 | 31,066 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,237 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,332 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,113 |
| History of Russia Quiz | 0 | - | 4.47 | 31,920 |
| Movies Set in France | 0 | - | 4.26 | 13,121 |
| French Inventions | 0 | - | 4.08 | 13,899 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,224 |
| History of Paris | 0 | - | 4.24 | 13,650 |
| Word Chain - Germany | 0 | - | 4.31 | 22,589 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,052 |
| The Trojan War | 0 | - | 4.83 | 39,734 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,871 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,036 |
| History of Italy | 0 | - | 4.55 | 31,979 |
| Word Chain - Italy | 0 | - | 4.07 | 23,165 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,105 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,542 |
| Roman Emperors | 0 | - | 4.95 | 120,077 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,664 |
| Famous Nordic People | 0 | - | 4.34 | 20,127 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,614 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,241 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,344 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,533 |
| People on Money - England | 0 | - | 4.29 | 16,614 |
| Name a Valid English City | 0 | - | 4.19 | 16,730 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,104 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,187 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,692 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,346 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,405 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,071 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,703 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,583 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,731 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,598 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,900 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,746 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,046 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,487 |
| Europe Map Quiz | 0 | - | 5.00 | 4,763,743 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,281 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,949 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,230 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,239 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,648 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,451 |
| Capitals of French Regions | 0 | - | 4.45 | 16,081 |
| Kings of France Quiz | 0 | - | 4.20 | 32,751 |
| Capitals of German States | 0 | - | 4.74 | 28,956 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,343 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,942 |
| Ancient Greek Words | 0 | - | 4.93 | 111,631 |
| British to American Food Translation | 0 | - | 3.38 | 51,966 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,451 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,320 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,742 |
| Famous Scottish People | 0 | - | 4.22 | 18,396 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,248 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,510 |
| Australian Capitals | 0 | - | 4.92 | 62,727 |
| European Physical Geography | 0 | - | 4.26 | 33,511 |
| Geography of Russia | 0 | - | 4.57 | 21,532 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,965 |
| History of Austria | 0 | - | 4.70 | 17,863 |
| Austria Country Quiz | 0 | - | 4.57 | 59,752 |
| Belgium Country Quiz | 0 | - | 4.73 | 71,814 |
| France Country Quiz | 0 | - | 4.70 | 134,998 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,171 |
| Geography of the French Empire | 0 | - | 4.45 | 27,061 |
| The French Revolution | 0 | - | 4.47 | 23,940 |
| Tour de France Winners | 0 | - | 4.27 | 15,375 |
| History of France | 0 | - | 4.59 | 56,996 |
| Greece Country Quiz | 0 | - | 4.74 | 66,276 |
| Italy Country Quiz | 0 | - | 4.80 | 123,427 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,205 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,151 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,759 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,513 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,543 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,467 |
| The Vikings! | 0 | - | 4.46 | 28,344 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,917 |
| The Portuguese Empire | 0 | - | 4.58 | 12,066 |
| Spain Country Quiz | 0 | - | 4.44 | 128,559 |
