| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,546 |
| Official European Union Languages | 0 | - | 4.97 | 236,418 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,635 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,151 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,202 |
| States of Germany | 0 | - | 4.96 | 149,891 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,964 |
| Regions of Italy | 0 | - | 4.92 | 74,629 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,767 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,200 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,082 |
| Departments of France | 0 | - | 4.93 | 52,727 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,425 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,350 |
| England or Wales? | 0 | - | 4.94 | 45,290 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,979 |
| Slavic Languages | 0 | - | 4.67 | 53,948 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,505 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,752 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,762 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,544 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,055 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,318 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,358 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,569 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,228 |
| Celtic Nations | 0 | - | 4.69 | 46,802 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,811 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,664 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,689 |
| Regions of France | 0 | - | 4.78 | 119,110 |
| France Immigration by Country | 0 | - | 4.72 | 75,934 |
| Famous Germans | 0 | - | 4.50 | 54,584 |
| German Groups of Things | 0 | - | 4.46 | 38,295 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,030 |
| Germany True or False? | 0 | - | 4.61 | 48,514 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,284 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,744 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,033 |
| Counties of England | 0 | - | 4.97 | 788,695 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,895 |
| The UK for Americans - True or False | 0 | - | 4.46 | 58,379 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,488 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,631 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,228 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,287 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,155 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,164 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,696 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,754 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,046 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,608 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,015 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,867 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,010 |
| Champions League Winners | 0 | - | 4.92 | 995,591 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,113 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,500 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,670 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,691 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,186 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,398 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,343 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,048 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,010 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,110 |
| Word Chain - France | 0 | - | 4.38 | 42,570 |
| Germany Country Quiz | 0 | - | 4.82 | 156,461 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,081 |
| Italy Country Quiz | 0 | - | 4.82 | 122,127 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,310 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,011 |
| Italian Foods | 0 | - | 4.30 | 72,138 |
| The Mafia Quiz | 0 | - | 4.46 | 23,196 |
| History of The Netherlands | 0 | - | 4.46 | 17,304 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,907 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,556 |
| Canary Islands | 0 | - | 4.61 | 17,390 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,704 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,110 |
| British Spellings | 0 | - | 4.07 | 99,196 |
| British Groups of Things | 0 | - | 4.25 | 82,660 |
| British Acronyms | 0 | - | 4.39 | 45,609 |
| UK Immigration by Country | 0 | - | 4.94 | 139,528 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,942 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,045 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,166 |
| Geography of Scotland | 0 | - | 4.63 | 21,472 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,372 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,433 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,596 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,942 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,904 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,767 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,499 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,365 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,550 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,957 |
| France A-Z | 0 | - | 4.16 | 38,044 |
| French History Multiple Choice | 0 | - | 4.55 | 32,861 |
| History of Germany | 0 | - | 4.39 | 52,601 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,468 |
| Name that Greek Letter | 0 | - | 4.94 | 321,496 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,414 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,420 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,234 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,465 |
| Languages of Spain | 0 | - | 4.36 | 23,139 |
| Switzerland A-Z | 0 | - | 4.45 | 25,497 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,428 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,905 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,423 |
| Malta Country Quiz | 0 | - | 4.81 | 30,804 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,403 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,466 |
| History of Russia Quiz | 0 | - | 4.49 | 31,782 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,554 |
| Famous French People | 0 | - | 4.12 | 27,904 |
| Movies Set in France | 0 | - | 4.26 | 13,068 |
| French Inventions | 0 | - | 4.08 | 13,862 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,562 |
| History of Paris | 0 | - | 4.24 | 13,612 |
| Word Chain - Germany | 0 | - | 4.31 | 22,473 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,425 |
| The Trojan War | 0 | - | 4.83 | 39,405 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,437 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,149 |
| History of Italy | 0 | - | 4.55 | 31,806 |
| Word Chain - Italy | 0 | - | 4.07 | 23,083 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,117 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,034 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,010 |
| Roman Emperors | 0 | - | 4.95 | 118,359 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,470 |
| Famous Nordic People | 0 | - | 4.34 | 19,834 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,540 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,966 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,233 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,454 |
| People on Money - England | 0 | - | 4.29 | 16,560 |
| Name a Valid English City | 0 | - | 4.19 | 16,624 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,303 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,009 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,417 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,339 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,842 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,777 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,650 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,174 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,813 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,634 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,597 |
| European Geography By Letter - V | 0 | - | 4.43 | 91,999 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,263 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,944 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,971 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,597 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,924 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,962 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,566 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,111 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,589 |
| Capitals of French Regions | 0 | - | 4.45 | 15,980 |
| Kings of France Quiz | 0 | - | 4.20 | 32,545 |
| Capitals of German States | 0 | - | 4.74 | 28,804 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,087 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,381 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,416 |
| Ancient Greek Words | 0 | - | 4.92 | 110,610 |
| British to American Food Translation | 0 | - | 3.38 | 51,807 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,255 |
| Name Every Beatles Song | 0 | - | 4.97 | 233,925 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,249 |
| Famous Scottish People | 0 | - | 4.22 | 18,322 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,953 |
| Top World Languages | 0 | - | 4.92 | 812,437 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,371 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,041 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,797 |
| Australian Capitals | 0 | - | 4.92 | 62,587 |
| European Physical Geography | 0 | - | 4.26 | 33,368 |
| Geography of Russia | 0 | - | 4.57 | 21,419 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,759 |
| History of Austria | 0 | - | 4.70 | 17,742 |
| Austria Country Quiz | 0 | - | 4.57 | 59,308 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,188 |
| France Country Quiz | 0 | - | 4.70 | 133,772 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,857 |
| Geography of the French Empire | 0 | - | 4.48 | 26,920 |
| The French Revolution | 0 | - | 4.46 | 23,761 |
| France Multiple Choice | 0 | - | 4.38 | 40,625 |
| Tour de France Winners | 0 | - | 4.27 | 15,203 |
| History of France | 0 | - | 4.59 | 55,945 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,378 |
| Greece Country Quiz | 0 | - | 4.74 | 65,726 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,281 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,581 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,458 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,209 |
| Netherlands Country Quiz | 0 | - | 4.50 | 79,925 |
