| States of Germany | 0 | - | 4.96 | 152,674 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,065 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,521 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,667 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,365 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,023 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,164 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,658 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,609 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,010 |
| Famous French People | 0 | - | 4.06 | 35,611 |
| Regions of Italy | 0 | - | 4.92 | 75,922 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,203 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,994 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,234 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,353 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,179 |
| Departments of France | 0 | - | 4.93 | 54,166 |
| German Groups of Things | 0 | - | 4.46 | 38,483 |
| Germany True or False? | 0 | - | 4.61 | 48,814 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,555 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,275 |
| England or Wales? | 0 | - | 4.94 | 45,708 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,153 |
| Official European Union Languages | 0 | - | 4.97 | 238,564 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,896 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,295 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,048 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,614 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,001 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,062 |
| The Mafia Quiz | 0 | - | 4.46 | 23,328 |
| History of The Netherlands | 0 | - | 4.46 | 17,437 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,850 |
| British Acronyms | 0 | - | 4.40 | 45,803 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,824 |
| Famous Scottish People | 0 | - | 4.22 | 18,398 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,388 |
| Celtic Nations | 0 | - | 4.69 | 46,953 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,367 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,489 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,088 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,715 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,589 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,742 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,606 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,908 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,755 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,052 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,499 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,654 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,389 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,620 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 171,994 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,065 |
| Regions of France | 0 | - | 4.72 | 120,849 |
| France A-Z | 0 | - | 4.16 | 38,210 |
| France Immigration by Country | 0 | - | 4.70 | 76,535 |
| Capitals of German States | 0 | - | 4.74 | 28,956 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,345 |
| History of Germany | 0 | - | 4.39 | 52,826 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,040 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,386 |
| Counties of England | 0 | - | 4.97 | 797,126 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,267 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,637 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,188 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,494 |
| Monarchies of Europe | 0 | - | 4.90 | 98,170 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,394 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,472 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,864 |
| Word Chain - Germany | 0 | - | 4.31 | 22,591 |
| Famous Irish People | 0 | - | 4.05 | 45,998 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,637 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,022 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,699 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,533 |
| People on Money - England | 0 | - | 4.29 | 16,614 |
| Champions League Winners | 0 | - | 4.92 | 1,007,104 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,529 |
| Monarchies of Asia | 0 | - | 4.97 | 71,105 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,904 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,504 |
| Kings of France Quiz | 0 | - | 4.20 | 32,751 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,138 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,708 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,385 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,206 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,886 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,834 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,993 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,119 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,789 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,594 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,236 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,787 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,962 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,237 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,147 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,045 |
| European Geography A-Z | 0 | - | 4.29 | 49,277 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,887 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,701 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,800 |
| Word Chain - France | 0 | - | 4.38 | 42,783 |
| Germany Country Quiz | 0 | - | 4.83 | 157,895 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,381 |
| German History A-Z | 0 | - | 4.49 | 24,618 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,005 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,916 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,430 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,082 |
| Italian Foods | 0 | - | 4.30 | 72,800 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,956 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,693 |
| Canary Islands | 0 | - | 4.62 | 17,482 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,030 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,721 |
| British Spellings | 0 | - | 4.06 | 99,459 |
| British Groups of Things | 0 | - | 4.25 | 82,878 |
| UK Immigration by Country | 0 | - | 4.94 | 140,929 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,038 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,847 |
| British Monopoly Board | 0 | - | 4.52 | 41,172 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,651 |
| Geography of Scotland | 0 | - | 4.63 | 21,622 |
| Name the English Monarchs | 0 | - | 4.91 | 502,853 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,418 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,987 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,073 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,841 |
| Famous Australians by Description | 0 | - | 4.23 | 27,947 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,044 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,815 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,607 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,660 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,718 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,020 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,524 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,473 |
| Slavic Languages | 0 | - | 4.68 | 54,380 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,781 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,628 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,487 |
| Geography of Germany | 0 | - | 4.35 | 17,188 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,621 |
| Name that Greek Letter | 0 | - | 4.93 | 323,498 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,624 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,475 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,616 |
| Switzerland A-Z | 0 | - | 4.45 | 25,648 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,691 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,022 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,778 |
| Malta Country Quiz | 0 | - | 4.81 | 31,068 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,259 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,668 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,682 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,913 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,370 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,117 |
| Famous Russians | 0 | - | 4.16 | 23,843 |
| History of Russia Quiz | 0 | - | 4.47 | 31,922 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,737 |
| Russian History A-Z | 0 | - | 4.38 | 31,737 |
| Movies Set in France | 0 | - | 4.26 | 13,121 |
| French Inventions | 0 | - | 4.08 | 13,899 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,234 |
| History of Paris | 0 | - | 4.24 | 13,652 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,148 |
| The Trojan War | 0 | - | 4.83 | 39,736 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,883 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,050 |
| History of Italy | 0 | - | 4.55 | 31,980 |
| Word Chain - Italy | 0 | - | 4.07 | 23,167 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,801 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,105 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,546 |
| Roman Emperors | 0 | - | 4.95 | 120,088 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,664 |
| Famous Nordic People | 0 | - | 4.34 | 20,130 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,242 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,344 |
| Name a Valid English City | 0 | - | 4.19 | 16,730 |
| British Geography A-Z | 0 | - | 4.42 | 19,525 |
| London A-Z | 0 | - | 4.10 | 40,778 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,374 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,202 |
| Famous Chinese People | 0 | - | 4.09 | 11,880 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,192 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,199 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,189 |
| Europe Map Quiz | 0 | - | 5.00 | 4,763,985 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,284 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,954 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,234 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,241 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,995 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,454 |
