| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,565 |
| Official European Union Languages | 0 | - | 4.97 | 236,469 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,669 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,240 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,335 |
| States of Germany | 0 | - | 4.96 | 149,960 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,991 |
| Regions of Italy | 0 | - | 4.92 | 74,669 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,785 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,277 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,100 |
| Departments of France | 0 | - | 4.93 | 52,750 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,356 |
| England or Wales? | 0 | - | 4.94 | 45,306 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,074 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,681 |
| Slavic Languages | 0 | - | 4.67 | 53,962 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,522 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,550 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,085 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,379 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,370 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,592 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,236 |
| Celtic Nations | 0 | - | 4.69 | 46,807 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,827 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,750 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,784 |
| Regions of France | 0 | - | 4.78 | 119,177 |
| France Immigration by Country | 0 | - | 4.72 | 75,944 |
| Famous Germans | 0 | - | 4.50 | 54,597 |
| German Groups of Things | 0 | - | 4.46 | 38,299 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,035 |
| Germany True or False? | 0 | - | 4.61 | 48,521 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,438 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,328 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,763 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,039 |
| Counties of England | 0 | - | 4.97 | 788,927 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,921 |
| The UK for Americans - True or False | 0 | - | 4.46 | 58,381 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,678 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,649 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,233 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,306 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,187 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,194 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,742 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,906 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,084 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,651 |
| Famous Nordic People | 0 | - | 4.34 | 19,846 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,062 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,882 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,033 |
| Champions League Winners | 0 | - | 4.92 | 995,942 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,128 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,510 |
| The Vikings! | 0 | - | 4.45 | 28,244 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,700 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,200 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,400 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,429 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,138 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,099 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,140 |
| Word Chain - France | 0 | - | 4.38 | 42,575 |
| Germany Country Quiz | 0 | - | 4.82 | 156,487 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,112 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,761 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,765 |
| Italy Country Quiz | 0 | - | 4.82 | 122,153 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,324 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,033 |
| Italian Foods | 0 | - | 4.31 | 72,154 |
| The Mafia Quiz | 0 | - | 4.46 | 23,203 |
| History of The Netherlands | 0 | - | 4.46 | 17,305 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,930 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,608 |
| Canary Islands | 0 | - | 4.61 | 17,397 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,739 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,131 |
| British Spellings | 0 | - | 4.07 | 99,199 |
| British Groups of Things | 0 | - | 4.25 | 82,667 |
| British Acronyms | 0 | - | 4.39 | 45,614 |
| UK Immigration by Country | 0 | - | 4.94 | 139,566 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,943 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,084 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,210 |
| Geography of Scotland | 0 | - | 4.63 | 21,474 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,422 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,441 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,597 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,969 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,960 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,775 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,507 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,374 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,550 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,960 |
| France A-Z | 0 | - | 4.16 | 38,053 |
| History of Germany | 0 | - | 4.39 | 52,610 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,702 |
| Name that Greek Letter | 0 | - | 4.94 | 321,587 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,423 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,240 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,469 |
| Languages of Spain | 0 | - | 4.36 | 23,145 |
| Switzerland A-Z | 0 | - | 4.45 | 25,502 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,437 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,908 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,431 |
| Malta Country Quiz | 0 | - | 4.81 | 30,821 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,467 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,576 |
| History of Russia Quiz | 0 | - | 4.49 | 31,784 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,558 |
| Famous French People | 0 | - | 4.12 | 27,921 |
| Movies Set in France | 0 | - | 4.26 | 13,070 |
| French Inventions | 0 | - | 4.08 | 13,863 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,574 |
| History of Paris | 0 | - | 4.24 | 13,612 |
| Word Chain - Germany | 0 | - | 4.31 | 22,474 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,438 |
| The Trojan War | 0 | - | 4.83 | 39,421 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,495 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,206 |
| History of Italy | 0 | - | 4.55 | 31,809 |
| Word Chain - Italy | 0 | - | 4.07 | 23,086 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,137 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,035 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,029 |
| Roman Emperors | 0 | - | 4.95 | 118,418 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,476 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,681 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,823 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,540 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,975 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,235 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,458 |
| People on Money - England | 0 | - | 4.29 | 16,561 |
| Name a Valid English City | 0 | - | 4.19 | 16,627 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,313 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,066 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,422 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,363 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 110,864 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,799 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,671 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,189 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,844 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,646 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,606 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,007 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,276 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,090 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,979 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,606 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,932 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,970 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,575 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,128 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,601 |
| Capitals of French Regions | 0 | - | 4.45 | 15,982 |
| Kings of France Quiz | 0 | - | 4.20 | 32,548 |
| Capitals of German States | 0 | - | 4.74 | 28,809 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,090 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,785 |
| Ancient Greek Words | 0 | - | 4.92 | 110,639 |
| British to American Food Translation | 0 | - | 3.38 | 51,811 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,261 |
| Name Every Beatles Song | 0 | - | 4.97 | 233,995 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,288 |
| Famous Scottish People | 0 | - | 4.22 | 18,326 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,029 |
| Top World Languages | 0 | - | 4.92 | 812,769 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,831 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,045 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,072 |
| Australian Capitals | 0 | - | 4.92 | 62,592 |
| European Physical Geography | 0 | - | 4.26 | 33,373 |
| Geography of Russia | 0 | - | 4.57 | 21,424 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,764 |
| History of Austria | 0 | - | 4.70 | 17,743 |
| Austria Country Quiz | 0 | - | 4.57 | 59,323 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,210 |
| France Country Quiz | 0 | - | 4.70 | 133,793 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,866 |
| Geography of the French Empire | 0 | - | 4.48 | 26,923 |
| The French Revolution | 0 | - | 4.46 | 23,773 |
| France Multiple Choice | 0 | - | 4.38 | 40,629 |
| Tour de France Winners | 0 | - | 4.27 | 15,211 |
| History of France | 0 | - | 4.59 | 55,981 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,382 |
| Greece Country Quiz | 0 | - | 4.74 | 65,737 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,418 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,603 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,470 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,228 |
| Netherlands Country Quiz | 0 | - | 4.50 | 79,941 |
