| European Countries by First 2 Letters | 0 | - | 4.95 | 526,387 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,566 |
| States of Germany | 0 | - | 4.96 | 150,088 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,025 |
| Regions of Italy | 0 | - | 4.92 | 74,732 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,823 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,362 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,199 |
| Departments of France | 0 | - | 4.93 | 52,838 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,371 |
| England or Wales? | 0 | - | 4.94 | 45,321 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,585 |
| Official European Union Languages | 0 | - | 4.97 | 236,630 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,709 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,230 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,987 |
| Name that Greek Letter | 0 | - | 4.94 | 321,694 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,544 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,780 |
| The Trojan War | 0 | - | 4.83 | 39,432 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,772 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,543 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,569 |
| Countries by National Anthem | 0 | - | 4.93 | 71,031 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,309 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,242 |
| Celtic Nations | 0 | - | 4.69 | 46,812 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,859 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,851 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,931 |
| Regions of France | 0 | - | 4.78 | 119,275 |
| France Immigration by Country | 0 | - | 4.72 | 75,968 |
| Famous Germans | 0 | - | 4.50 | 54,620 |
| German Groups of Things | 0 | - | 4.46 | 38,306 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,050 |
| Germany True or False? | 0 | - | 4.61 | 48,535 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,468 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,534 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,831 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,048 |
| Counties of England | 0 | - | 4.97 | 789,272 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,969 |
| The UK for Americans - True or False | 0 | - | 4.46 | 58,392 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,448 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,127 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,353 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,970 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,337 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,226 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,277 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,803 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,020 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,151 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,697 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,186 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,928 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,108 |
| Champions League Winners | 0 | - | 4.92 | 996,450 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,150 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,526 |
| Greece Country Quiz | 0 | - | 4.74 | 65,763 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,701 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,227 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,432 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,574 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,235 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,188 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,208 |
| Word Chain - France | 0 | - | 4.38 | 42,584 |
| Germany Country Quiz | 0 | - | 4.82 | 156,564 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,160 |
| Italy Country Quiz | 0 | - | 4.82 | 122,221 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,395 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,089 |
| Italian Foods | 0 | - | 4.31 | 72,204 |
| The Mafia Quiz | 0 | - | 4.46 | 23,207 |
| History of The Netherlands | 0 | - | 4.46 | 17,311 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,956 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,650 |
| Canary Islands | 0 | - | 4.61 | 17,404 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,898 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,156 |
| British Spellings | 0 | - | 4.07 | 99,217 |
| British Groups of Things | 0 | - | 4.25 | 82,674 |
| British Acronyms | 0 | - | 4.39 | 45,620 |
| UK Immigration by Country | 0 | - | 4.94 | 139,658 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,950 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,163 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,301 |
| Geography of Scotland | 0 | - | 4.63 | 21,481 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,505 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,451 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,599 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,999 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,064 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,845 |
| Slavic Languages | 0 | - | 4.67 | 53,987 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,517 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,402 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,555 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,962 |
| France A-Z | 0 | - | 4.16 | 38,059 |
| French History Multiple Choice | 0 | - | 4.55 | 32,879 |
| History of Germany | 0 | - | 4.39 | 52,615 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,909 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,437 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,430 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,376 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,251 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,474 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,144 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,506 |
| Switzerland A-Z | 0 | - | 4.45 | 25,509 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,446 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,919 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,690 |
| Malta Country Quiz | 0 | - | 4.81 | 30,828 |
| Twelve Days of Christmas | 0 | - | 4.45 | 145,591 |
| Rudolph the Red-Nosed Reindeer | 0 | - | 4.53 | 76,006 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,546 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,142 |
| History of Russia Quiz | 0 | - | 4.49 | 31,795 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,568 |
| Famous French People | 0 | - | 4.12 | 27,955 |
| Movies Set in France | 0 | - | 4.26 | 13,074 |
| French Inventions | 0 | - | 4.08 | 13,866 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,606 |
| History of Paris | 0 | - | 4.24 | 13,616 |
| Word Chain - Germany | 0 | - | 4.31 | 22,475 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,464 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,984 |
| History of Italy | 0 | - | 4.55 | 31,817 |
| Word Chain - Italy | 0 | - | 4.07 | 23,089 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,169 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,042 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,055 |
| Roman Emperors | 0 | - | 4.95 | 118,496 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,483 |
| Famous Nordic People | 0 | - | 4.34 | 19,861 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,545 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,983 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,240 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,464 |
| People on Money - England | 0 | - | 4.29 | 16,564 |
| Name a Valid English City | 0 | - | 4.19 | 16,631 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,030 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,335 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,559 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,115 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,420 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,921 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,868 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,725 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,228 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,910 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,680 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,637 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,029 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,319 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,689 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,993 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,620 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,948 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,988 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,607 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,158 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,615 |
| Capitals of French Regions | 0 | - | 4.45 | 15,987 |
| Kings of France Quiz | 0 | - | 4.20 | 32,557 |
| Capitals of German States | 0 | - | 4.74 | 28,812 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,098 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,229 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,424 |
| Ancient Greek Words | 0 | - | 4.92 | 110,709 |
| British to American Food Translation | 0 | - | 3.38 | 51,819 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,264 |
| Imagine Lyrics | 0 | - | 4.53 | 43,063 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,298 |
| Famous Scottish People | 0 | - | 4.22 | 18,326 |
| Christmas Song Lyrics | 0 | - | 4.20 | 70,406 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,465 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,368 |
| Australian Capitals | 0 | - | 4.92 | 62,594 |
| America the Beautiful Lyrics | 0 | - | 4.27 | 19,717 |
| European Physical Geography | 0 | - | 4.26 | 33,374 |
| Geography of Russia | 0 | - | 4.57 | 21,428 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,779 |
| History of Austria | 0 | - | 4.70 | 17,749 |
| Austria Country Quiz | 0 | - | 4.57 | 59,350 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,239 |
| France Country Quiz | 0 | - | 4.70 | 133,846 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,899 |
| Geography of the French Empire | 0 | - | 4.48 | 26,936 |
| The French Revolution | 0 | - | 4.46 | 23,785 |
| France Multiple Choice | 0 | - | 4.38 | 40,635 |
| Tour de France Winners | 0 | - | 4.27 | 15,225 |
| History of France | 0 | - | 4.59 | 56,066 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,384 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,588 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,621 |
