| England or Wales? | 0 | - | 4.94 | 45,806 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,666 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,654 |
| States of Germany | 0 | - | 4.95 | 153,247 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,300 |
| Regions of Italy | 0 | - | 4.92 | 76,269 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,444 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,436 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,425 |
| Departments of France | 0 | - | 4.93 | 54,493 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,620 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,341 |
| Official European Union Languages | 0 | - | 4.97 | 238,956 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,151 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,120 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,218 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,118 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,917 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,782 |
| French History Multiple Choice | 0 | - | 4.55 | 33,131 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,433 |
| Celtic Nations | 0 | - | 4.69 | 46,998 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,543 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,364 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,182 |
| Regions of France | 0 | - | 4.72 | 121,269 |
| France Immigration by Country | 0 | - | 4.70 | 76,689 |
| Famous Germans | 0 | - | 4.50 | 55,538 |
| German Groups of Things | 0 | - | 4.46 | 38,529 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,481 |
| Germany True or False? | 0 | - | 4.61 | 48,894 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,204 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,149 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,823 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,503 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,343 |
| Counties of England | 0 | - | 4.97 | 799,042 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,449 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,694 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,286 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,715 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,953 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,403 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 86,901 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,337 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,057 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,877 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,234 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,219 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,170 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,210 |
| Champions League Winners | 0 | - | 4.92 | 1,010,056 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,590 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,023 |
| The Vikings! | 0 | - | 4.46 | 28,369 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,165 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,428 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,379 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,757 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,963 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,408 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,668 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,784 |
| Austria... or Australia? | 0 | - | 4.68 | 104,511 |
| Famous French People | 0 | - | 4.07 | 35,865 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,186 |
| Word Chain - France | 0 | - | 4.38 | 42,847 |
| Germany Country Quiz | 0 | - | 4.83 | 158,199 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,648 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,081 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,948 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,677 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,624 |
| Italian Foods | 0 | - | 4.30 | 72,951 |
| The Mafia Quiz | 0 | - | 4.46 | 23,373 |
| History of The Netherlands | 0 | - | 4.46 | 17,488 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,125 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,246 |
| Canary Islands | 0 | - | 4.62 | 17,493 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,282 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,836 |
| British Spellings | 0 | - | 4.06 | 99,510 |
| British Groups of Things | 0 | - | 4.25 | 82,915 |
| British Acronyms | 0 | - | 4.40 | 45,855 |
| UK Immigration by Country | 0 | - | 4.94 | 141,180 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,059 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,207 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,011 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,957 |
| Geography of Scotland | 0 | - | 4.63 | 21,660 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,038 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,650 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,675 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,894 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,656 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,653 |
| Slavic Languages | 0 | - | 4.68 | 54,472 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,862 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,646 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,091 |
| France A-Z | 0 | - | 4.16 | 38,270 |
| History of Germany | 0 | - | 4.39 | 52,904 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,991 |
| Name that Greek Letter | 0 | - | 4.93 | 324,199 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,666 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,314 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,517 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,658 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,071 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,526 |
| Switzerland A-Z | 0 | - | 4.45 | 25,692 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,776 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,048 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,880 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,210 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,003 |
| Malta Country Quiz | 0 | - | 4.81 | 31,117 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,436 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,369 |
| History of Russia Quiz | 0 | - | 4.47 | 31,956 |
| Movies Set in France | 0 | - | 4.26 | 13,134 |
| French Inventions | 0 | - | 4.10 | 13,910 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,371 |
| History of Paris | 0 | - | 4.24 | 13,660 |
| Word Chain - Germany | 0 | - | 4.31 | 22,622 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,211 |
| The Trojan War | 0 | - | 4.83 | 39,803 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,271 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,532 |
| History of Italy | 0 | - | 4.55 | 32,058 |
| Word Chain - Italy | 0 | - | 4.07 | 23,184 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,972 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,128 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,659 |
| Roman Emperors | 0 | - | 4.95 | 120,421 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,723 |
| Famous Nordic People | 0 | - | 4.34 | 20,175 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,802 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,624 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,300 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,362 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,546 |
| People on Money - England | 0 | - | 4.29 | 16,625 |
| Name a Valid English City | 0 | - | 4.19 | 16,754 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,730 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,623 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,997 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,394 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,794 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,348 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,013 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,342 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,216 |
| European Geography By Letter - R | 0 | - | 4.42 | 94,026 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,294 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,848 |
| Europe Map Quiz | 0 | - | 5.00 | 4,771,913 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,361 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,016 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,307 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,301 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,896 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,555 |
| Capitals of French Regions | 0 | - | 4.45 | 16,117 |
| Kings of France Quiz | 0 | - | 4.20 | 32,820 |
| Capitals of German States | 0 | - | 4.74 | 28,990 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,403 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,964 |
| Ancient Greek Words | 0 | - | 4.93 | 111,927 |
| British to American Food Translation | 0 | - | 3.38 | 51,985 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,495 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,094 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,121 |
| Famous Scottish People | 0 | - | 4.22 | 18,415 |
| Oceania Map Quiz | 0 | - | 4.98 | 653,761 |
| Australian Capitals | 0 | - | 4.92 | 62,757 |
| European Physical Geography | 0 | - | 4.26 | 33,542 |
| Geography of Russia | 0 | - | 4.57 | 21,555 |
| History of Austria | 0 | - | 4.70 | 17,908 |
| Austria Country Quiz | 0 | - | 4.57 | 59,849 |
| Belgium Country Quiz | 0 | - | 4.72 | 71,954 |
| France Country Quiz | 0 | - | 4.70 | 135,202 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,241 |
| Geography of the French Empire | 0 | - | 4.45 | 27,157 |
| The French Revolution | 0 | - | 4.47 | 24,065 |
| France Multiple Choice | 0 | - | 4.39 | 40,774 |
| Tour de France Winners | 0 | - | 4.27 | 15,418 |
| History of France | 0 | - | 4.59 | 57,286 |
| Greece Country Quiz | 0 | - | 4.74 | 66,377 |
| Italy Country Quiz | 0 | - | 4.77 | 123,616 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,101 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,283 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,826 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,571 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,664 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,557 |
| Portugal Country Quiz | 0 | - | 4.69 | 72,036 |
| The Portuguese Empire | 0 | - | 4.58 | 12,084 |
| Spain Country Quiz | 0 | - | 4.44 | 128,788 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,462 |
