| Germany Multiple Choice | 0 | - | 4.84 | 54,174 |
| States of Germany | 0 | - | 4.96 | 150,961 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,309 |
| England or Wales? | 0 | - | 4.94 | 45,473 |
| Italy True or False? | 0 | - | 4.42 | 47,306 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,491 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,537 |
| Australia True or False | 0 | - | 4.87 | 56,653 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,721 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,832 |
| Regions of Italy | 0 | - | 4.92 | 75,121 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,068 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,082 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,671 |
| Departments of France | 0 | - | 4.93 | 53,199 |
| Famous Germans | 0 | - | 4.50 | 54,808 |
| German Groups of Things | 0 | - | 4.46 | 38,371 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,423 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,822 |
| Official European Union Languages | 0 | - | 4.97 | 237,567 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,259 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,369 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,723 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,713 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,652 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,628 |
| French History Multiple Choice | 0 | - | 4.55 | 32,933 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,404 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,312 |
| Celtic Nations | 0 | - | 4.69 | 46,868 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,069 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,105 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,284 |
| Regions of France | 0 | - | 4.78 | 119,851 |
| France Immigration by Country | 0 | - | 4.72 | 76,153 |
| Capitals of German States | 0 | - | 4.74 | 28,886 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,182 |
| History of Germany | 0 | - | 4.39 | 52,707 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,693 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,831 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,016 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,136 |
| Counties of England | 0 | - | 4.97 | 792,076 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,801 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,247 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,263 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,595 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,541 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,638 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,254 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,091 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,684 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,098 |
| Word Chain - Germany | 0 | - | 4.31 | 22,518 |
| UK Cities Map Quiz | 0 | - | 4.95 | 463,089 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,288 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,570 |
| Champions League Winners | 0 | - | 4.92 | 1,000,196 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,281 |
| France Multiple Choice | 0 | - | 4.38 | 40,675 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,421 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,803 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,406 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,252 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,608 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,605 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,627 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,969 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,628 |
| Word Chain - France | 0 | - | 4.38 | 42,667 |
| Germany Country Quiz | 0 | - | 4.82 | 157,098 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,500 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,858 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,830 |
| Italy Country Quiz | 0 | - | 4.82 | 122,613 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,766 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,398 |
| Italian Foods | 0 | - | 4.31 | 72,418 |
| The Mafia Quiz | 0 | - | 4.46 | 23,242 |
| History of The Netherlands | 0 | - | 4.46 | 17,352 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,358 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,983 |
| Canary Islands | 0 | - | 4.61 | 17,432 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,373 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,337 |
| British Spellings | 0 | - | 4.07 | 99,342 |
| British Groups of Things | 0 | - | 4.25 | 82,758 |
| British Acronyms | 0 | - | 4.39 | 45,693 |
| UK Immigration by Country | 0 | - | 4.94 | 140,044 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,989 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,818 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,762 |
| Geography of Scotland | 0 | - | 4.63 | 21,532 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,145 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,498 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,623 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,242 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,759 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,084 |
| Slavic Languages | 0 | - | 4.68 | 54,138 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,616 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,514 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,585 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,995 |
| France A-Z | 0 | - | 4.16 | 38,106 |
| Geography of Germany | 0 | - | 4.35 | 17,128 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,231 |
| Name that Greek Letter | 0 | - | 4.93 | 322,421 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,514 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,609 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,327 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,527 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,311 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,796 |
| Switzerland A-Z | 0 | - | 4.45 | 25,566 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,536 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,960 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,563 |
| Malta Country Quiz | 0 | - | 4.81 | 30,918 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,286 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,079 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,524 |
| History of Russia Quiz | 0 | - | 4.49 | 31,834 |
| Famous French People | 0 | - | 4.12 | 28,118 |
| Movies Set in France | 0 | - | 4.26 | 13,095 |
| French Inventions | 0 | - | 4.08 | 13,874 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,836 |
| History of Paris | 0 | - | 4.24 | 13,628 |
| The Trojan War | 0 | - | 4.83 | 39,543 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,091 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,982 |
| History of Italy | 0 | - | 4.55 | 31,888 |
| Word Chain - Italy | 0 | - | 4.07 | 23,131 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,065 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,249 |
| Roman Emperors | 0 | - | 4.95 | 119,137 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,550 |
| Famous Nordic People | 0 | - | 4.34 | 19,969 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,563 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,077 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,288 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,494 |
| People on Money - England | 0 | - | 4.29 | 16,587 |
| Name a Valid English City | 0 | - | 4.19 | 16,666 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,061 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,490 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,063 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,603 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,655 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,109 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,090 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,964 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,428 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,276 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,016 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,795 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,426 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,577 |
| Europe Map Quiz | 0 | - | 5.00 | 4,743,745 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,105 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,749 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,057 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,098 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,783 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,843 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,201 |
| Capitals of French Regions | 0 | - | 4.45 | 16,014 |
| Kings of France Quiz | 0 | - | 4.20 | 32,619 |
| German Loan Words | 0 | - | 4.27 | 135,591 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,077 |
| Ancient Greek Words | 0 | - | 4.93 | 111,047 |
| British to American Food Translation | 0 | - | 3.38 | 51,902 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,349 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,913 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,075 |
| Famous Scottish People | 0 | - | 4.22 | 18,351 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,852 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,073 |
| Australian Capitals | 0 | - | 4.92 | 62,646 |
| European Physical Geography | 0 | - | 4.26 | 33,414 |
| Geography of Russia | 0 | - | 4.57 | 21,470 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,840 |
| History of Austria | 0 | - | 4.70 | 17,793 |
| Austria Country Quiz | 0 | - | 4.57 | 59,508 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,441 |
| France Country Quiz | 0 | - | 4.70 | 134,426 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,023 |
| Geography of the French Empire | 0 | - | 4.45 | 26,987 |
| The French Revolution | 0 | - | 4.46 | 23,854 |
| Tour de France Winners | 0 | - | 4.27 | 15,275 |
| History of France | 0 | - | 4.59 | 56,546 |
| Bundesliga Champions | 0 | - | 4.24 | 55,996 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 45,256 |
| German History A-Z | 0 | - | 4.49 | 24,500 |
| German Inventions | 0 | - | 3.91 | 30,205 |
| Embarrassing Chapters in German History | 0 | - | 3.41 | 12,591 |
| Greece Country Quiz | 0 | - | 4.74 | 65,944 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,937 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,810 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,593 |
