| Regions of Italy | 0 | - | 4.92 | 75,737 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,532 |
| German Groups of Things | 0 | - | 4.46 | 38,458 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,192 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,740 |
| States of Germany | 0 | - | 4.96 | 152,236 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,962 |
| Italian Foods | 0 | - | 4.30 | 72,718 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,038 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,791 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,115 |
| British Groups of Things | 0 | - | 4.25 | 82,854 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,950 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,575 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,911 |
| Departments of France | 0 | - | 4.93 | 53,979 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,402 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,159 |
| England or Wales? | 0 | - | 4.94 | 45,643 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,063 |
| Official European Union Languages | 0 | - | 4.97 | 238,327 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,736 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,869 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,746 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,591 |
| Word Chain - Italy | 0 | - | 4.07 | 23,157 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,933 |
| Word Chain - France | 0 | - | 4.38 | 42,764 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,125 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,975 |
| The Mafia Quiz | 0 | - | 4.46 | 23,314 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,478 |
| Roman Emperors | 0 | - | 4.95 | 119,819 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,797 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,028 |
| History of Italy | 0 | - | 4.55 | 31,959 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,717 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,378 |
| Celtic Nations | 0 | - | 4.69 | 46,923 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,242 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,907 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,293 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,194 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,212 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,315 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,234 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,100 |
| Regions of France | 0 | - | 4.75 | 120,591 |
| France Immigration by Country | 0 | - | 4.70 | 76,461 |
| Famous Germans | 0 | - | 4.50 | 55,251 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,324 |
| Germany True or False? | 0 | - | 4.61 | 48,769 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,932 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,949 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,299 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,600 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,249 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,657 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,011 |
| Counties of England | 0 | - | 4.97 | 795,800 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,606 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,279 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,313 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,030 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,014 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,107 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,854 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,818 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,277 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,682 |
| Word Chain - Germany | 0 | - | 4.31 | 22,574 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,093 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,723 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,067 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,249 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,930 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,352 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,334 |
| Name a Valid English City | 0 | - | 4.19 | 16,712 |
| Champions League Winners | 0 | - | 4.92 | 1,005,525 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,170 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,452 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,093 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,622 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,684 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,231 |
| Name a Valid African Country | 0 | - | 4.98 | 153,933 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,330 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,647 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,503 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,532 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,656 |
| Famous French People | 0 | - | 4.06 | 35,370 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,604 |
| Germany Country Quiz | 0 | - | 4.82 | 157,729 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,005 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,965 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,896 |
| Italy Country Quiz | 0 | - | 4.82 | 123,301 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,229 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,912 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,289 |
| History of The Netherlands | 0 | - | 4.46 | 17,426 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,801 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,523 |
| Canary Islands | 0 | - | 4.62 | 17,471 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,865 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,655 |
| British Spellings | 0 | - | 4.06 | 99,429 |
| British to American Food Translation | 0 | - | 3.38 | 51,954 |
| British Acronyms | 0 | - | 4.40 | 45,781 |
| UK Immigration by Country | 0 | - | 4.94 | 140,789 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,635 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,428 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,732 |
| Geography of Scotland | 0 | - | 4.63 | 21,607 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,138 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 109,880 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,695 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,893 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,854 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,478 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,584 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,650 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,601 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,773 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,396 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,930 |
| Slavic Languages | 0 | - | 4.68 | 54,313 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,620 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,057 |
| France A-Z | 0 | - | 4.16 | 38,188 |
| French History Multiple Choice | 0 | - | 4.55 | 33,017 |
| History of Germany | 0 | - | 4.39 | 52,797 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,754 |
| Name that Greek Letter | 0 | - | 4.93 | 323,272 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,719 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,881 |
| Roman Names for Places | 0 | - | 4.62 | 58,235 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,028 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,443 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,731 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,198 |
| Switzerland A-Z | 0 | - | 4.45 | 25,633 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,727 |
| Malta Country Quiz | 0 | - | 4.81 | 31,029 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,127 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,029 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,811 |
| California Groups of Things | 0 | - | 4.25 | 45,450 |
| New York Groups of Things | 0 | - | 4.35 | 63,445 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,431 |
| Countries that Beat Canada | 0 | - | 4.90 | 91,825 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,968 |
| History of Russia Quiz | 0 | - | 4.47 | 31,903 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,712 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,595 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,215 |
| Movies Set in France | 0 | - | 4.26 | 13,118 |
| French Inventions | 0 | - | 4.08 | 13,893 |
| French Foods | 0 | - | 4.00 | 27,691 |
| History of Paris | 0 | - | 4.24 | 13,643 |
| The Trojan War | 0 | - | 4.83 | 39,681 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,691 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,751 |
| Italian Inventions | 0 | - | 3.81 | 18,437 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,443 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,640 |
| Famous Nordic People | 0 | - | 4.34 | 20,088 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,393 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,745 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,234 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,613 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,200 |
| Geography of Spain | 0 | - | 4.59 | 22,063 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,521 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,037 |
| People on Money - England | 0 | - | 4.29 | 16,608 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,868 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,795 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,954 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,139 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,704 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,749 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,469 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,185 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,243 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,308 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,331 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,643 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,544 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,868 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,242 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,085 |
| European Geography By Letter - S #1 | 0 | - | 4.54 | 100,444 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,402 |
| Capitals of French Regions | 0 | - | 4.45 | 16,056 |
| Kings of France Quiz | 0 | - | 4.20 | 32,704 |
| Capitals of German States | 0 | - | 4.74 | 28,943 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,304 |
