| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,587 |
| Official European Union Languages | 0 | - | 4.97 | 239,462 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,469 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,768 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,952 |
| States of Germany | 0 | - | 4.95 | 154,050 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,550 |
| Regions of Italy | 0 | - | 4.92 | 76,737 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,659 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,049 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,620 |
| Departments of France | 0 | - | 4.93 | 54,876 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,347 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,706 |
| England or Wales? | 0 | - | 4.94 | 45,901 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,251 |
| Slavic Languages | 0 | - | 4.68 | 54,621 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,229 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,177 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,008 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,003 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,648 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,474 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,927 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,472 |
| Celtic Nations | 0 | - | 4.61 | 47,065 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,893 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,220 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,042 |
| Regions of France | 0 | - | 4.70 | 121,774 |
| France Immigration by Country | 0 | - | 4.70 | 76,838 |
| Famous Germans | 0 | - | 4.50 | 55,683 |
| German Groups of Things | 0 | - | 4.47 | 38,601 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,626 |
| Germany True or False? | 0 | - | 4.61 | 48,966 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,344 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,196 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,642 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,382 |
| Counties of England | 0 | - | 4.97 | 801,395 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,660 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,765 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,211 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,901 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,682 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,961 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,576 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,621 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,302 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,724 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,965 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,381 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,566 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,965 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,391 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,687 |
| Champions League Winners | 0 | - | 4.92 | 1,013,499 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,696 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,317 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,024 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,272 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,810 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,177 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,485 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,465 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,878 |
| Famous French People | 0 | - | 4.07 | 36,012 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,531 |
| Word Chain - France | 0 | - | 4.38 | 42,899 |
| Germany Country Quiz | 0 | - | 4.83 | 158,592 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,914 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,035 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,885 |
| Italian Foods | 0 | - | 4.30 | 73,147 |
| The Mafia Quiz | 0 | - | 4.46 | 23,412 |
| History of The Netherlands | 0 | - | 4.46 | 17,530 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,333 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,623 |
| Canary Islands | 0 | - | 4.62 | 17,514 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,616 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,971 |
| British Spellings | 0 | - | 4.06 | 99,564 |
| British Groups of Things | 0 | - | 4.25 | 82,975 |
| British Acronyms | 0 | - | 4.40 | 45,902 |
| UK Immigration by Country | 0 | - | 4.94 | 141,488 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,085 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,684 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,478 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,057 |
| Geography of Scotland | 0 | - | 4.63 | 21,704 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,676 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,710 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,699 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,160 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,292 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,799 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,014 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,658 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,117 |
| France A-Z | 0 | - | 4.16 | 38,313 |
| History of Germany | 0 | - | 4.39 | 52,945 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,785 |
| Name that Greek Letter | 0 | - | 4.93 | 324,696 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,793 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,708 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,592 |
| Most Common First Names in Spain | 0 | - | 4.32 | 54,836 |
| Languages of Spain | 0 | - | 4.36 | 23,399 |
| Switzerland A-Z | 0 | - | 4.45 | 25,742 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,912 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,075 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,014 |
| Malta Country Quiz | 0 | - | 4.81 | 31,205 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,853 |
| History of Russia Quiz | 0 | - | 4.47 | 31,986 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,835 |
| Movies Set in France | 0 | - | 4.26 | 13,144 |
| French Inventions | 0 | - | 4.10 | 13,918 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,585 |
| History of Paris | 0 | - | 4.24 | 13,668 |
| Word Chain - Germany | 0 | - | 4.31 | 22,659 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,446 |
| The Trojan War | 0 | - | 4.83 | 39,936 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,695 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,163 |
| History of Italy | 0 | - | 4.55 | 32,113 |
| Word Chain - Italy | 0 | - | 4.07 | 23,205 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,213 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,149 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,495 |
| Roman Emperors | 0 | - | 4.95 | 120,921 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,785 |
| Famous Nordic People | 0 | - | 4.34 | 20,242 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,632 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,383 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,387 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,565 |
| People on Money - England | 0 | - | 4.29 | 16,636 |
| Name a Valid English City | 0 | - | 4.19 | 16,797 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,326 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,634 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,054 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,685 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,063 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,969 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,073 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,734 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,070 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,863 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,378 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,591 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,284 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,145 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,454 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,108 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,404 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,367 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,210 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,434 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,654 |
| Capitals of French Regions | 0 | - | 4.45 | 16,154 |
| Kings of France Quiz | 0 | - | 4.20 | 32,881 |
| Capitals of German States | 0 | - | 4.74 | 29,037 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,502 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,041 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,556 |
| Ancient Greek Words | 0 | - | 4.93 | 112,264 |
| British to American Food Translation | 0 | - | 3.38 | 52,018 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,541 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,897 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,574 |
| Famous Scottish People | 0 | - | 4.22 | 18,427 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,222 |
| Top World Languages | 0 | - | 4.92 | 827,759 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,218 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,011 |
| Australian Capitals | 0 | - | 4.92 | 62,806 |
| European Physical Geography | 0 | - | 4.26 | 33,572 |
| Geography of Russia | 0 | - | 4.57 | 21,576 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,081 |
| History of Austria | 0 | - | 4.70 | 17,954 |
| Austria Country Quiz | 0 | - | 4.57 | 59,979 |
| Belgium Country Quiz | 0 | - | 4.72 | 72,142 |
| France Country Quiz | 0 | - | 4.70 | 135,456 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,309 |
| Geography of the French Empire | 0 | - | 4.45 | 27,198 |
| The French Revolution | 0 | - | 4.47 | 24,113 |
| France Multiple Choice | 0 | - | 4.39 | 40,812 |
| Tour de France Winners | 0 | - | 4.27 | 15,472 |
| History of France | 0 | - | 4.61 | 57,476 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,545 |
| Greece Country Quiz | 0 | - | 4.74 | 66,544 |
| Italy Country Quiz | 0 | - | 4.77 | 123,896 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,119 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,417 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,903 |
| Monaco Country Quiz | 0 | - | 4.48 | 41,645 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,831 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,659 |
| The Vikings! | 0 | - | 4.46 | 28,393 |
