| European Countries by First 2 Letters | 0 | - | 4.95 | 532,158 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,263 |
| States of Germany | 0 | - | 4.95 | 154,252 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,619 |
| Regions of Italy | 0 | - | 4.92 | 76,915 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,735 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,161 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,677 |
| Departments of France | 0 | - | 4.93 | 54,971 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,721 |
| England or Wales? | 0 | - | 4.94 | 45,927 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,644 |
| Official European Union Languages | 0 | - | 4.97 | 239,610 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,544 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,528 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,231 |
| Name that Greek Letter | 0 | - | 4.93 | 324,821 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,267 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,204 |
| The Trojan War | 0 | - | 4.83 | 39,951 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,023 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,808 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,027 |
| Countries by National Anthem | 0 | - | 4.92 | 71,391 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,317 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,488 |
| Celtic Nations | 0 | - | 4.61 | 47,081 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,951 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,444 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,342 |
| Regions of France | 0 | - | 4.70 | 121,902 |
| France Immigration by Country | 0 | - | 4.70 | 76,877 |
| Famous Germans | 0 | - | 4.50 | 55,742 |
| German Groups of Things | 0 | - | 4.47 | 38,615 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,668 |
| Germany True or False? | 0 | - | 4.61 | 48,991 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,389 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,413 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,293 |
| Italy True or False? | 0 | - | 4.42 | 47,583 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,689 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,392 |
| Counties of England | 0 | - | 4.97 | 802,049 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,722 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,793 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,048 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,103 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,686 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,870 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,623 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,688 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,409 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,851 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,232 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,503 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,677 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,188 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,454 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,849 |
| Champions League Winners | 0 | - | 4.92 | 1,014,727 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,719 |
| Greece Country Quiz | 0 | - | 4.74 | 66,592 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,351 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,316 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,822 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,477 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,685 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,664 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,903 |
| Famous French People | 0 | - | 4.07 | 36,049 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,678 |
| Word Chain - France | 0 | - | 4.38 | 42,915 |
| Germany Country Quiz | 0 | - | 4.82 | 158,714 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,986 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,126 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,951 |
| Italian Foods | 0 | - | 4.30 | 73,199 |
| The Mafia Quiz | 0 | - | 4.46 | 23,425 |
| History of The Netherlands | 0 | - | 4.46 | 17,539 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,401 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,750 |
| Canary Islands | 0 | - | 4.62 | 17,515 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,721 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,015 |
| British Spellings | 0 | - | 4.06 | 99,583 |
| British Groups of Things | 0 | - | 4.25 | 82,988 |
| British Acronyms | 0 | - | 4.40 | 45,918 |
| UK Immigration by Country | 0 | - | 4.94 | 141,578 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,095 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,833 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,609 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,079 |
| Geography of Scotland | 0 | - | 4.63 | 21,721 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,865 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,723 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,714 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,217 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 118,643 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,861 |
| Slavic Languages | 0 | - | 4.68 | 54,658 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,039 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,665 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,133 |
| France A-Z | 0 | - | 4.16 | 38,323 |
| French History Multiple Choice | 0 | - | 4.55 | 33,203 |
| History of Germany | 0 | - | 4.39 | 52,964 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,227 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,814 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,722 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,574 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,606 |
| Most Common First Names in Spain | 0 | - | 4.32 | 55,144 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,322 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,803 |
| Switzerland A-Z | 0 | - | 4.45 | 25,755 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,945 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,082 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,040 |
| Malta Country Quiz | 0 | - | 4.81 | 31,217 |
| Twelve Days of Christmas | 0 | - | 4.45 | 146,206 |
| Rudolph the Red-Nosed Reindeer | 0 | - | 4.53 | 76,424 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,739 |
| History of Russia Quiz | 0 | - | 4.47 | 31,995 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,849 |
| Movies Set in France | 0 | - | 4.26 | 13,145 |
| French Inventions | 0 | - | 4.10 | 13,923 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,643 |
| History of Paris | 0 | - | 4.24 | 13,675 |
| Word Chain - Germany | 0 | - | 4.31 | 22,674 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,504 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,227 |
| History of Italy | 0 | - | 4.55 | 32,129 |
| Word Chain - Italy | 0 | - | 4.07 | 23,212 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,276 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,158 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,542 |
| Roman Emperors | 0 | - | 4.95 | 121,060 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,800 |
| Famous Nordic People | 0 | - | 4.34 | 20,282 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,641 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,408 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,394 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,572 |
| People on Money - England | 0 | - | 4.29 | 16,643 |
| Name a Valid English City | 0 | - | 4.19 | 16,809 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,157 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,298 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,495 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,214 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,745 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,118 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,342 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,121 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,773 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,153 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,894 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,412 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,627 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,348 |
| Europe Map Quiz | 0 | - | 5.00 | 4,784,006 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,476 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,138 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,422 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,394 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,245 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,489 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,700 |
| Capitals of French Regions | 0 | - | 4.45 | 16,163 |
| Kings of France Quiz | 0 | - | 4.20 | 32,901 |
| Capitals of German States | 0 | - | 4.74 | 29,056 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,522 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,365 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,566 |
| Ancient Greek Words | 0 | - | 4.93 | 112,347 |
| British to American Food Translation | 0 | - | 3.38 | 52,025 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,555 |
| Imagine Lyrics | 0 | - | 4.53 | 43,520 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 41,002 |
| Famous Scottish People | 0 | - | 4.22 | 18,434 |
| Christmas Song Lyrics | 0 | - | 4.19 | 70,763 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,617 |
| Australian Capitals | 0 | - | 4.92 | 62,818 |
| America the Beautiful Lyrics | 0 | - | 4.27 | 19,788 |
| European Physical Geography | 0 | - | 4.26 | 33,586 |
| Geography of Russia | 0 | - | 4.57 | 21,588 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,101 |
| History of Austria | 0 | - | 4.70 | 17,965 |
| Austria Country Quiz | 0 | - | 4.57 | 60,011 |
| Belgium Country Quiz | 0 | - | 4.72 | 72,193 |
| France Country Quiz | 0 | - | 4.70 | 135,552 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,341 |
| Geography of the French Empire | 0 | - | 4.45 | 27,202 |
| The French Revolution | 0 | - | 4.47 | 24,130 |
| France Multiple Choice | 0 | - | 4.39 | 40,827 |
| Tour de France Winners | 0 | - | 4.27 | 15,497 |
| History of France | 0 | - | 4.61 | 57,539 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,551 |
| Italy Country Quiz | 0 | - | 4.77 | 123,964 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,436 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,470 |
