| States of Germany | 0 | - | 4.95 | 155,075 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,872 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,293 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,539 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,944 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,653 |
| States of Germany Map Quiz | 0 | - | 4.92 | 134,077 |
| Regions of Italy | 0 | - | 4.92 | 77,340 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,978 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,694 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,972 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,535 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,422 |
| Departments of France | 0 | - | 4.93 | 55,495 |
| Germany Country Quiz | 0 | - | 4.82 | 159,180 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,800 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,521 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,864 |
| England or Wales? | 0 | - | 4.94 | 46,096 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,894 |
| Official European Union Languages | 0 | - | 4.97 | 240,483 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,899 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,619 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,415 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,701 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,124 |
| British Acronyms | 0 | - | 4.40 | 46,000 |
| Celtic Nations | 0 | - | 4.61 | 47,131 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,181 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,371 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,830 |
| Regions of France | 0 | - | 4.70 | 122,525 |
| France Immigration by Country | 0 | - | 4.70 | 77,048 |
| Famous Germans | 0 | - | 4.50 | 55,903 |
| German Groups of Things | 0 | - | 4.47 | 38,685 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,777 |
| Germany True or False? | 0 | - | 4.61 | 49,093 |
| History of Germany | 0 | - | 4.39 | 53,011 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,624 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,591 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,988 |
| Counties of England | 0 | - | 4.97 | 804,862 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 104,003 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,866 |
| Middle Earth Geography | 0 | - | 4.56 | 40,005 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 81,896 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 46,011 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,136 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,544 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,298 |
| Monarchies of Europe | 0 | - | 4.90 | 99,105 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,375 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,248 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,069 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,885 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,992 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,704 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,394 |
| Champions League Winners | 0 | - | 4.92 | 1,018,840 |
| Monarchies of Asia | 0 | - | 4.97 | 71,651 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,394 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,847 |
| Kings of France Quiz | 0 | - | 4.22 | 32,979 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,582 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,682 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,399 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,461 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,509 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,879 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 93,015 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,201 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,147 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,048 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,088 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,491 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,031 |
| Famous French People | 0 | - | 4.05 | 36,203 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,181 |
| Word Chain - France | 0 | - | 4.38 | 42,978 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,324 |
| German History A-Z | 0 | - | 4.49 | 24,960 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,305 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,514 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,304 |
| Italian Foods | 0 | - | 4.30 | 73,435 |
| Countries Italy Declared War On | 0 | - | 4.77 | 50,700 |
| The Mafia Quiz | 0 | - | 4.46 | 23,457 |
| History of The Netherlands | 0 | - | 4.46 | 17,582 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,664 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,109 |
| Canary Islands | 0 | - | 4.62 | 17,551 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,197 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,194 |
| British Spellings | 0 | - | 4.06 | 99,645 |
| British Groups of Things | 0 | - | 4.26 | 83,055 |
| UK Immigration by Country | 0 | - | 4.94 | 141,963 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,136 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,398 |
| British Monopoly Board | 0 | - | 4.52 | 41,301 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,145 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,242 |
| Geography of Scotland | 0 | - | 4.63 | 21,841 |
| Lord of the Rings - Races | 0 | - | 4.25 | 59,080 |
| The Ultimate LOTR Character Quiz - The Books | 0 | - | 4.63 | 20,928 |
| Name the English Monarchs | 0 | - | 4.91 | 507,749 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,633 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,845 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,942 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,658 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 98,015 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,552 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,673 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 95,809 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,104 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,815 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,744 |
| Word Scramble - European Countries | 0 | - | 4.72 | 142,515 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,499 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,763 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,098 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,456 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,347 |
| Slavic Languages | 0 | - | 4.67 | 54,812 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,326 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,690 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,172 |
| France A-Z | 0 | - | 4.16 | 38,371 |
| French History Multiple Choice | 0 | - | 4.55 | 33,288 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.40 | 82,837 |
| Geography of Germany | 0 | - | 4.36 | 17,454 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,329 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,444 |
| Name that Greek Letter | 0 | - | 4.93 | 325,424 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,765 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,673 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,417 |
| Switzerland A-Z | 0 | - | 4.45 | 25,805 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 70,053 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,118 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,179 |
| Malta Country Quiz | 0 | - | 4.81 | 31,277 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,191 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 126,118 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,774 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,311 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,066 |
| History of Russia Quiz | 0 | - | 4.47 | 32,033 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,917 |
| Movies Set in France | 0 | - | 4.26 | 13,166 |
| French Inventions | 0 | - | 4.10 | 13,933 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,854 |
| History of Paris | 0 | - | 4.24 | 13,687 |
| Germany A-Z | 0 | - | 4.56 | 62,929 |
| Word Chain - Germany | 0 | - | 4.31 | 22,704 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,577 |
| The Trojan War | 0 | - | 4.83 | 40,127 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,372 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,142 |
| History of Italy | 0 | - | 4.55 | 32,201 |
| Word Chain - Italy | 0 | - | 4.07 | 23,237 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,588 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,189 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,737 |
| Roman Emperors | 0 | - | 4.95 | 121,536 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,868 |
| Famous Nordic People | 0 | - | 4.34 | 20,364 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,652 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,485 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,428 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,587 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,556 |
| People on Money - England | 0 | - | 4.30 | 21,344 |
| Name a Valid English City | 0 | - | 4.19 | 16,849 |
| British Geography A-Z | 0 | - | 4.42 | 19,638 |
| Roald Dahl Books | 0 | - | 4.45 | 34,160 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.56 | 34,543 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,896 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 281,153 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,311 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,718 |
| Hindu Countries | 0 | - | 4.86 | 50,715 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,775 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,494 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,628 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,880 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,584 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 122,032 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,599 |
| European Geography By Letter - D | 0 | - | 4.49 | 119,151 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,528 |
| European Geography By Letter - M | 0 | - | 4.70 | 133,066 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,450 |
| European Geography By Letter - R | 0 | - | 4.43 | 95,024 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,292 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,932 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,630 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,597 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,270 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,539 |
