| States of Germany | 0 | - | 4.96 | 151,324 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,676 |
| Famous Germans | 0 | - | 4.50 | 54,879 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,065 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,217 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,802 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,658 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,671 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,741 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,336 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,451 |
| Regions of Italy | 0 | - | 4.92 | 75,309 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 50,859 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,327 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,796 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,076 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,263 |
| Departments of France | 0 | - | 4.93 | 53,453 |
| German Groups of Things | 0 | - | 4.46 | 38,398 |
| Germany True or False? | 0 | - | 4.61 | 48,676 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,964 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,468 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,167 |
| 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 | 237,802 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,412 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,811 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,472 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,787 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,801 |
| The Mafia Quiz | 0 | - | 4.46 | 23,259 |
| History of The Netherlands | 0 | - | 4.46 | 17,375 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,691 |
| British Acronyms | 0 | - | 4.39 | 45,722 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,331 |
| Celtic Nations | 0 | - | 4.69 | 46,880 |
| 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 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,824 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,150 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,533 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,795 |
| Regions of France | 0 | - | 4.77 | 120,105 |
| France A-Z | 0 | - | 4.16 | 38,121 |
| France Immigration by Country | 0 | - | 4.72 | 76,276 |
| Capitals of German States | 0 | - | 4.74 | 28,901 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,229 |
| History of Germany | 0 | - | 4.39 | 52,740 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,770 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,112 |
| Counties of England | 0 | - | 4.97 | 793,237 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,920 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,523 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,034 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,941 |
| Monarchies of Europe | 0 | - | 4.90 | 97,769 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,626 |
| Famous French People | 0 | - | 4.12 | 28,159 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,929 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,309 |
| Word Chain - Germany | 0 | - | 4.31 | 22,536 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,572 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,573 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,405 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,766 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,504 |
| People on Money - England | 0 | - | 4.29 | 16,595 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,539 |
| Champions League Winners | 0 | - | 4.92 | 1,001,652 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,200 |
| Monarchies of Asia | 0 | - | 4.97 | 70,876 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,689 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,326 |
| Kings of France Quiz | 0 | - | 4.20 | 32,639 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,442 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,940 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,631 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,873 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,530 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,724 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,468 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,884 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,141 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,760 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,701 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,388 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,105 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,451 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,672 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,707 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,582 |
| European Geography A-Z | 0 | - | 4.29 | 49,133 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,865 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,149 |
| Word Chain - France | 0 | - | 4.38 | 42,697 |
| Germany Country Quiz | 0 | - | 4.82 | 157,300 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,680 |
| German History A-Z | 0 | - | 4.49 | 24,534 |
| 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 | 148,915 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,602 |
| Italian Foods | 0 | - | 4.31 | 72,520 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,513 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,142 |
| 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 Groups of Things | 0 | - | 4.25 | 82,800 |
| UK Immigration by Country | 0 | - | 4.94 | 140,464 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,002 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,094 |
| British Monopoly Board | 0 | - | 4.52 | 41,108 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,977 |
| Geography of Scotland | 0 | - | 4.63 | 21,565 |
| Name the English Monarchs | 0 | - | 4.92 | 500,527 |
| Famous Scottish People | 0 | - | 4.22 | 18,366 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,404 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,721 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,436 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,144 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,396 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,175 |
| 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 | 141,352 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,006 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,346 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,195 |
| Slavic Languages | 0 | - | 4.68 | 54,196 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,666 |
| 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 |
| French History Multiple Choice | 0 | - | 4.55 | 32,962 |
| Geography of Germany | 0 | - | 4.35 | 17,140 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,111 |
| Name that Greek Letter | 0 | - | 4.93 | 322,746 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,537 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,381 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,547 |
| Switzerland A-Z | 0 | - | 4.45 | 25,590 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,597 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,978 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,621 |
| Malta Country Quiz | 0 | - | 4.81 | 30,959 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,539 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,306 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,183 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,599 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,742 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,674 |
| History of Russia Quiz | 0 | - | 4.49 | 31,859 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,663 |
| Movies Set in France | 0 | - | 4.26 | 13,103 |
| French Inventions | 0 | - | 4.08 | 13,881 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,929 |
| History of Paris | 0 | - | 4.24 | 13,632 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,093 |
| The Trojan War | 0 | - | 4.83 | 39,594 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,289 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,213 |
| Famous Irish People | 0 | - | 4.05 | 45,917 |
| History of Italy | 0 | - | 4.55 | 31,911 |
| Word Chain - Italy | 0 | - | 4.07 | 23,139 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,523 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,074 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,330 |
| Roman Emperors | 0 | - | 4.95 | 119,417 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,586 |
| Famous Nordic People | 0 | - | 4.34 | 20,005 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,115 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,307 |
| Name a Valid English City | 0 | - | 4.19 | 16,686 |
| British Geography A-Z | 0 | - | 4.41 | 19,476 |
| London A-Z | 0 | - | 4.10 | 40,716 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,186 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,341 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,043 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,991 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,851 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,795 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,158 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,811 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,095 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,136 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,872 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,287 |
| Capitals of French Regions | 0 | - | 4.45 | 16,025 |
