| States of Germany | 0 | - | 4.96 | 149,845 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,933 |
| Famous Germans | 0 | - | 4.50 | 54,569 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,094 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,019 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,274 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,131 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,140 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,129 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,672 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,491 |
| Regions of Italy | 0 | - | 4.92 | 74,616 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,749 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,173 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,068 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,285 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,953 |
| Departments of France | 0 | - | 4.93 | 52,698 |
| German Groups of Things | 0 | - | 4.46 | 38,293 |
| Germany True or False? | 0 | - | 4.61 | 48,510 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,265 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,346 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,029 |
| England or Wales? | 0 | - | 4.94 | 45,286 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,537 |
| Official European Union Languages | 0 | - | 4.97 | 236,386 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,617 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,922 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,173 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,492 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,410 |
| The Mafia Quiz | 0 | - | 4.46 | 23,194 |
| History of The Netherlands | 0 | - | 4.46 | 17,299 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,535 |
| British Acronyms | 0 | - | 4.39 | 45,604 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,227 |
| Celtic Nations | 0 | - | 4.69 | 46,800 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,326 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 110,837 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,773 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,644 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,166 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,795 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,627 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,590 |
| European Geography By Letter - V | 0 | - | 4.43 | 91,994 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,252 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,558 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,793 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,604 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,596 |
| Regions of France | 0 | - | 4.78 | 119,076 |
| France A-Z | 0 | - | 4.16 | 38,043 |
| France Immigration by Country | 0 | - | 4.72 | 75,925 |
| Capitals of German States | 0 | - | 4.74 | 28,799 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,082 |
| History of Germany | 0 | - | 4.39 | 52,594 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,407 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,740 |
| Counties of England | 0 | - | 4.97 | 788,527 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,881 |
| The UK for Americans - True or False | 0 | - | 4.46 | 58,371 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,308 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,209 |
| Monarchies of Europe | 0 | - | 4.90 | 97,234 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,665 |
| Famous French People | 0 | - | 4.12 | 27,890 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,026 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,584 |
| Word Chain - Germany | 0 | - | 4.31 | 22,471 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,540 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,959 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,856 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,983 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,454 |
| People on Money - England | 0 | - | 4.29 | 16,559 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,293 |
| Champions League Winners | 0 | - | 4.92 | 995,321 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,937 |
| Monarchies of Asia | 0 | - | 4.97 | 70,546 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,393 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,104 |
| Kings of France Quiz | 0 | - | 4.20 | 32,540 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,374 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,661 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,394 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,001 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,020 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,491 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,159 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,402 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,844 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,221 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,437 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,112 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,890 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,271 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,480 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,183 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,050 |
| European Geography A-Z | 0 | - | 4.28 | 48,967 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,015 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,085 |
| Word Chain - France | 0 | - | 4.38 | 42,570 |
| Germany Country Quiz | 0 | - | 4.82 | 156,425 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,074 |
| German History A-Z | 0 | - | 4.49 | 24,188 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,744 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,756 |
| Italy Country Quiz | 0 | - | 4.82 | 122,097 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,271 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,000 |
| Italian Foods | 0 | - | 4.30 | 72,130 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,884 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,539 |
| Canary Islands | 0 | - | 4.61 | 17,390 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,690 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,099 |
| British Spellings | 0 | - | 4.07 | 99,192 |
| British Groups of Things | 0 | - | 4.25 | 82,659 |
| UK Immigration by Country | 0 | - | 4.94 | 139,511 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,942 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,004 |
| British Monopoly Board | 0 | - | 4.52 | 41,023 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,146 |
| Geography of Scotland | 0 | - | 4.63 | 21,468 |
| Name the English Monarchs | 0 | - | 4.92 | 497,507 |
| Famous Scottish People | 0 | - | 4.22 | 18,320 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,326 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,457 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,589 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,465 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,054 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,153 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,427 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,596 |
| Word Scramble - European Countries | 0 | - | 4.74 | 140,927 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,849 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,077 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,754 |
| Slavic Languages | 0 | - | 4.67 | 53,938 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,495 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,362 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,549 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,956 |
| French History Multiple Choice | 0 | - | 4.55 | 32,860 |
| Geography of Germany | 0 | - | 4.35 | 17,079 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,347 |
| Name that Greek Letter | 0 | - | 4.94 | 321,469 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,419 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,229 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,462 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,427 |
| Switzerland A-Z | 0 | - | 4.45 | 25,494 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,423 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,904 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,414 |
| Malta Country Quiz | 0 | - | 4.81 | 30,797 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,376 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,796 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,571 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,517 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,030 |
| History of Russia Quiz | 0 | - | 4.49 | 31,774 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,550 |
| Movies Set in France | 0 | - | 4.26 | 13,067 |
| French Inventions | 0 | - | 4.08 | 13,859 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,556 |
| History of Paris | 0 | - | 4.24 | 13,612 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,972 |
| The Trojan War | 0 | - | 4.83 | 39,400 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,390 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,112 |
| Famous Irish People | 0 | - | 4.05 | 45,849 |
| History of Italy | 0 | - | 4.55 | 31,801 |
| Word Chain - Italy | 0 | - | 4.07 | 23,079 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,106 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,032 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,989 |
| Roman Emperors | 0 | - | 4.95 | 118,339 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,467 |
| Famous Nordic People | 0 | - | 4.34 | 19,826 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,964 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,233 |
| Name a Valid English City | 0 | - | 4.19 | 16,623 |
| London A-Z | 0 | - | 4.10 | 40,626 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,911 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,975 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,839 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,695 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,338 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,300 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,965 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,586 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,915 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,957 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,721 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,101 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,582 |
| Capitals of French Regions | 0 | - | 4.45 | 15,980 |
