| Regions of Italy | 0 | - | 4.92 | 75,309 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,468 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,067 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,345 |
| States of Germany | 0 | - | 4.96 | 151,324 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,676 |
| Italian Foods | 0 | - | 4.31 | 72,520 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 50,864 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,327 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,796 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,002 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,078 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,866 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,264 |
| Departments of France | 0 | - | 4.93 | 53,453 |
| German Groups of Things | 0 | - | 4.46 | 38,399 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,964 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,924 |
| England or Wales? | 0 | - | 4.94 | 45,518 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,892 |
| Official European Union Languages | 0 | - | 4.97 | 237,806 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,413 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,813 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,667 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,537 |
| Word Chain - Italy | 0 | - | 4.07 | 23,139 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,787 |
| Word Chain - France | 0 | - | 4.38 | 42,697 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,929 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,801 |
| The Mafia Quiz | 0 | - | 4.46 | 23,259 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,330 |
| Roman Emperors | 0 | - | 4.95 | 119,420 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,692 |
| British Groups of Things | 0 | - | 4.25 | 82,800 |
| History of Italy | 0 | - | 4.55 | 31,911 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,523 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,332 |
| Celtic Nations | 0 | - | 4.69 | 46,881 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,159 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,811 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,262 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,095 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,136 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,150 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,534 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,795 |
| Regions of France | 0 | - | 4.77 | 120,105 |
| France Immigration by Country | 0 | - | 4.72 | 76,276 |
| Famous Germans | 0 | - | 4.50 | 54,879 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,217 |
| Germany True or False? | 0 | - | 4.61 | 48,677 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,802 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,770 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,112 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,547 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,167 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,597 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,978 |
| Counties of England | 0 | - | 4.97 | 793,240 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,523 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,037 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,222 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,792 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,658 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,672 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,741 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,451 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,646 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,929 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,312 |
| Word Chain - Germany | 0 | - | 4.31 | 22,536 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,074 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,426 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,879 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,574 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,405 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,766 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,307 |
| Name a Valid English City | 0 | - | 4.19 | 16,686 |
| Champions League Winners | 0 | - | 4.92 | 1,001,663 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,875 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,326 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,940 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,472 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,631 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,874 |
| Name a Valid African Country | 0 | - | 4.98 | 153,531 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,900 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,552 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,144 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,046 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,151 |
| Germany Country Quiz | 0 | - | 4.82 | 157,302 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,680 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,885 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,852 |
| Italy Country Quiz | 0 | - | 4.82 | 122,786 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,918 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,602 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,177 |
| History of The Netherlands | 0 | - | 4.46 | 17,375 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,513 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,144 |
| Canary Islands | 0 | - | 4.61 | 17,445 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,521 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,489 |
| British Spellings | 0 | - | 4.06 | 99,366 |
| British to American Food Translation | 0 | - | 3.38 | 51,915 |
| British Acronyms | 0 | - | 4.39 | 45,722 |
| UK Immigration by Country | 0 | - | 4.94 | 140,464 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,095 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,978 |
| Geography of Scotland | 0 | - | 4.63 | 21,565 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,407 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,437 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,144 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,561 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,521 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,635 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,353 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,007 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,195 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,585 |
| Slavic Languages | 0 | - | 4.68 | 54,196 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,557 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,594 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,006 |
| France A-Z | 0 | - | 4.16 | 38,121 |
| French History Multiple Choice | 0 | - | 4.55 | 32,962 |
| History of Germany | 0 | - | 4.39 | 52,740 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,114 |
| Name that Greek Letter | 0 | - | 4.93 | 322,748 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,652 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,813 |
| Roman Names for Places | 0 | - | 4.62 | 58,093 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,774 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,381 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,406 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,927 |
| Switzerland A-Z | 0 | - | 4.45 | 25,590 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,621 |
| Malta Country Quiz | 0 | - | 4.81 | 30,959 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,029 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,541 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,277 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,173 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,675 |
| History of Russia Quiz | 0 | - | 4.49 | 31,859 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,663 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,316 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,167 |
| Famous French People | 0 | - | 4.12 | 28,159 |
| Movies Set in France | 0 | - | 4.26 | 13,103 |
| French Inventions | 0 | - | 4.08 | 13,881 |
| French Foods | 0 | - | 4.00 | 27,649 |
| History of Paris | 0 | - | 4.24 | 13,632 |
| The Trojan War | 0 | - | 4.83 | 39,595 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,291 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,213 |
| Italian Inventions | 0 | - | 3.81 | 18,430 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,409 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,586 |
| Famous Nordic People | 0 | - | 4.34 | 20,005 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,350 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,579 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,002 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,572 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,115 |
| Geography of Spain | 0 | - | 4.59 | 22,023 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,504 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,945 |
| People on Money - England | 0 | - | 4.29 | 16,595 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,539 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,342 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,557 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,912 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,044 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,734 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,164 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,137 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,025 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,484 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,388 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,060 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,836 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,467 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,654 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,822 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,824 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,287 |
| Capitals of French Regions | 0 | - | 4.45 | 16,025 |
| Kings of France Quiz | 0 | - | 4.20 | 32,639 |
| Capitals of German States | 0 | - | 4.74 | 28,901 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,230 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,782 |
| Ancient Greek Words | 0 | - | 4.93 | 111,182 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,147 |
| Robin Hood Quiz | 0 | - | 4.00 | 8,436 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,371 |
