| England or Wales? | 0 | - | 4.94 | 45,840 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,072 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,540 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,777 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,127 |
| States of Germany | 0 | - | 4.95 | 153,632 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,385 |
| Regions of Italy | 0 | - | 4.92 | 76,457 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,529 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,728 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,501 |
| Departments of France | 0 | - | 4.93 | 54,652 |
| Germany True or False? | 0 | - | 4.61 | 48,926 |
| Italy True or False? | 0 | - | 4.42 | 47,513 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,648 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,721 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,435 |
| Official European Union Languages | 0 | - | 4.97 | 239,157 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,269 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,639 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,255 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,164 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,948 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,802 |
| French History Multiple Choice | 0 | - | 4.55 | 33,152 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,074 |
| Australia True or False | 0 | - | 4.87 | 57,007 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,456 |
| Celtic Nations | 0 | - | 4.69 | 47,026 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,752 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,744 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 174,040 |
| Regions of France | 0 | - | 4.70 | 121,474 |
| France Immigration by Country | 0 | - | 4.70 | 76,742 |
| Famous Germans | 0 | - | 4.50 | 55,588 |
| German Groups of Things | 0 | - | 4.46 | 38,560 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,262 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,232 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,933 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,568 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,368 |
| Counties of England | 0 | - | 4.97 | 800,040 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,543 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,037 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,239 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,494 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,582 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,497 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,351 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,009 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,363 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,537 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,261 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,385 |
| Champions League Winners | 0 | - | 4.92 | 1,011,288 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,647 |
| France Multiple Choice | 0 | - | 4.39 | 40,789 |
| The Vikings! | 0 | - | 4.46 | 28,379 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,214 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,398 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,774 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,609 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,793 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,041 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,822 |
| Famous French People | 0 | - | 4.07 | 35,932 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,326 |
| Word Chain - France | 0 | - | 4.38 | 42,871 |
| Germany Country Quiz | 0 | - | 4.83 | 158,367 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,765 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,127 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,975 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,834 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,721 |
| Italian Foods | 0 | - | 4.30 | 73,030 |
| The Mafia Quiz | 0 | - | 4.46 | 23,395 |
| History of The Netherlands | 0 | - | 4.46 | 17,503 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,200 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,395 |
| Canary Islands | 0 | - | 4.62 | 17,502 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,404 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,879 |
| British Spellings | 0 | - | 4.06 | 99,532 |
| British Groups of Things | 0 | - | 4.25 | 82,942 |
| British Acronyms | 0 | - | 4.40 | 45,879 |
| UK Immigration by Country | 0 | - | 4.94 | 141,277 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,068 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,384 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,198 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,001 |
| Geography of Scotland | 0 | - | 4.63 | 21,686 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,297 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,851 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,673 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,681 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,977 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,918 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,700 |
| Slavic Languages | 0 | - | 4.68 | 54,534 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,945 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,652 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,099 |
| France A-Z | 0 | - | 4.16 | 38,288 |
| History of Germany | 0 | - | 4.39 | 52,921 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,760 |
| Name that Greek Letter | 0 | - | 4.93 | 324,395 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,686 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,389 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,545 |
| Most Common First Names in Spain | 0 | - | 4.27 | 50,427 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,159 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,608 |
| Switzerland A-Z | 0 | - | 4.45 | 25,709 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,841 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,058 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,909 |
| Malta Country Quiz | 0 | - | 4.81 | 31,146 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,838 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,494 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,488 |
| History of Russia Quiz | 0 | - | 4.47 | 31,973 |
| Movies Set in France | 0 | - | 4.26 | 13,136 |
| French Inventions | 0 | - | 4.10 | 13,911 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,458 |
| History of Paris | 0 | - | 4.24 | 13,665 |
| Word Chain - Germany | 0 | - | 4.31 | 22,643 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,310 |
| The Trojan War | 0 | - | 4.83 | 39,871 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,453 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,792 |
| History of Italy | 0 | - | 4.55 | 32,090 |
| Word Chain - Italy | 0 | - | 4.07 | 23,201 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,136 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,220 |
| Roman Emperors | 0 | - | 4.95 | 120,613 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,754 |
| Famous Nordic People | 0 | - | 4.34 | 20,205 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,817 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,627 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,334 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,370 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,550 |
| People on Money - England | 0 | - | 4.29 | 16,627 |
| Name a Valid English City | 0 | - | 4.19 | 16,770 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,130 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,965 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,764 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,801 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,122 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,526 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,908 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,453 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,121 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,516 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,299 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,118 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,367 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,956 |
| Europe Map Quiz | 0 | - | 5.00 | 4,775,375 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,402 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,056 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,349 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,323 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,977 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,590 |
| Capitals of French Regions | 0 | - | 4.45 | 16,129 |
| Kings of France Quiz | 0 | - | 4.20 | 32,852 |
| Capitals of German States | 0 | - | 4.74 | 29,011 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,434 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,363 |
| Ancient Greek Words | 0 | - | 4.93 | 112,076 |
| British to American Food Translation | 0 | - | 3.38 | 52,001 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,504 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,432 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,218 |
| Famous Scottish People | 0 | - | 4.22 | 18,420 |
| Oceania Map Quiz | 0 | - | 4.98 | 656,353 |
| Australian Capitals | 0 | - | 4.92 | 62,780 |
| European Physical Geography | 0 | - | 4.26 | 33,559 |
| Geography of Russia | 0 | - | 4.57 | 21,560 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,041 |
| History of Austria | 0 | - | 4.70 | 17,928 |
| Austria Country Quiz | 0 | - | 4.57 | 59,901 |
| Belgium Country Quiz | 0 | - | 4.72 | 72,019 |
| France Country Quiz | 0 | - | 4.70 | 135,322 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,265 |
| Geography of the French Empire | 0 | - | 4.45 | 27,177 |
| The French Revolution | 0 | - | 4.47 | 24,083 |
| Tour de France Winners | 0 | - | 4.27 | 15,447 |
| History of France | 0 | - | 4.61 | 57,365 |
| Greece Country Quiz | 0 | - | 4.74 | 66,441 |
| Italy Country Quiz | 0 | - | 4.77 | 123,734 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,478 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,335 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,853 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,596 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,727 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,597 |
| Portugal Country Quiz | 0 | - | 4.69 | 72,109 |
| The Portuguese Empire | 0 | - | 4.58 | 12,088 |
