| States of Germany | 0 | - | 4.96 | 151,243 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,627 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,932 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,984 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,213 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,782 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,641 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,651 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,727 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,231 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,406 |
| Regions of Italy | 0 | - | 4.92 | 75,282 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 50,331 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,260 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,788 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,956 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,189 |
| Departments of France | 0 | - | 4.93 | 53,428 |
| German Groups of Things | 0 | - | 4.46 | 38,393 |
| Germany True or False? | 0 | - | 4.61 | 48,669 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,457 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,164 |
| England or Wales? | 0 | - | 4.94 | 45,509 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,880 |
| Official European Union Languages | 0 | - | 4.97 | 237,752 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,376 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,715 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,463 |
| Famous French People | 0 | - | 4.12 | 28,152 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,571 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,771 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,792 |
| The Mafia Quiz | 0 | - | 4.46 | 23,256 |
| History of The Netherlands | 0 | - | 4.46 | 17,372 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,686 |
| British Acronyms | 0 | - | 4.39 | 45,717 |
| Famous Scottish People | 0 | - | 4.22 | 18,364 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,325 |
| Celtic Nations | 0 | - | 4.69 | 46,879 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,711 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,149 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,126 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,007 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,463 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,361 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,047 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,825 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,456 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,634 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,816 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,136 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,469 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,660 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,003 |
| Regions of France | 0 | - | 4.77 | 120,042 |
| France A-Z | 0 | - | 4.16 | 38,119 |
| France Immigration by Country | 0 | - | 4.72 | 76,252 |
| Capitals of German States | 0 | - | 4.74 | 28,899 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,222 |
| History of Germany | 0 | - | 4.39 | 52,736 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,757 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,102 |
| Counties of England | 0 | - | 4.97 | 793,004 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,873 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,517 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,831 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,903 |
| Monarchies of Europe | 0 | - | 4.90 | 97,743 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,526 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,880 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,247 |
| Word Chain - Germany | 0 | - | 4.31 | 22,535 |
| Famous Irish People | 0 | - | 4.05 | 45,915 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,488 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,385 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,719 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,503 |
| People on Money - England | 0 | - | 4.29 | 16,591 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,524 |
| Champions League Winners | 0 | - | 4.92 | 1,001,264 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,189 |
| Monarchies of Asia | 0 | - | 4.97 | 70,861 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,662 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,310 |
| Kings of France Quiz | 0 | - | 4.20 | 32,638 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,440 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,920 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,625 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,835 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,503 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,709 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,453 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,874 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,125 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,743 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,691 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,377 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,098 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,441 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,667 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,689 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,558 |
| European Geography A-Z | 0 | - | 4.29 | 49,127 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,819 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,093 |
| Word Chain - France | 0 | - | 4.38 | 42,685 |
| Germany Country Quiz | 0 | - | 4.82 | 157,261 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,638 |
| German History A-Z | 0 | - | 4.49 | 24,522 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,880 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,846 |
| Italy Country Quiz | 0 | - | 4.82 | 122,748 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,891 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,548 |
| Italian Foods | 0 | - | 4.31 | 72,489 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,483 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,102 |
| Canary Islands | 0 | - | 4.61 | 17,444 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,492 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,469 |
| British Spellings | 0 | - | 4.06 | 99,364 |
| British Groups of Things | 0 | - | 4.25 | 82,792 |
| UK Immigration by Country | 0 | - | 4.94 | 140,435 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,999 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,047 |
| British Monopoly Board | 0 | - | 4.52 | 41,107 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,933 |
| Geography of Scotland | 0 | - | 4.63 | 21,561 |
| Name the English Monarchs | 0 | - | 4.92 | 500,371 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,353 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,709 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,399 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,107 |
| Famous Australians by Description | 0 | - | 4.23 | 27,801 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,235 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,922 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,516 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,630 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,332 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,948 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,337 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,170 |
| Slavic Languages | 0 | - | 4.68 | 54,178 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,652 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,547 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,594 |
| Geography of Germany | 0 | - | 4.35 | 17,140 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,929 |
| Name that Greek Letter | 0 | - | 4.93 | 322,656 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,531 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,369 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,542 |
| Switzerland A-Z | 0 | - | 4.45 | 25,586 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,584 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,974 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,602 |
| Malta Country Quiz | 0 | - | 4.81 | 30,950 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,478 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,263 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,127 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,714 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,241 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,638 |
| Famous Russians | 0 | - | 4.16 | 23,779 |
| History of Russia Quiz | 0 | - | 4.49 | 31,855 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,654 |
| Movies Set in France | 0 | - | 4.26 | 13,100 |
| French Inventions | 0 | - | 4.08 | 13,880 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,914 |
| History of Paris | 0 | - | 4.24 | 13,631 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,086 |
| The Trojan War | 0 | - | 4.83 | 39,584 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,242 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,171 |
| History of Italy | 0 | - | 4.55 | 31,909 |
| Word Chain - Italy | 0 | - | 4.07 | 23,138 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,493 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,073 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,316 |
| Roman Emperors | 0 | - | 4.95 | 119,362 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,575 |
| Famous Nordic People | 0 | - | 4.34 | 20,001 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,105 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,307 |
| Name a Valid English City | 0 | - | 4.19 | 16,683 |
| British Geography A-Z | 0 | - | 4.41 | 19,472 |
| London A-Z | 0 | - | 4.10 | 40,711 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,177 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,255 |
| Famous Chinese People | 0 | - | 4.09 | 11,841 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,037 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,975 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,831 |
| Europe Map Quiz | 0 | - | 5.00 | 4,747,903 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,151 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,800 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,088 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,131 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,866 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,273 |
