| European Countries by First 2 Letters | 0 | - | 4.95 | 525,976 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,832 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,016 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,482 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,778 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,509 |
| Official European Union Languages | 0 | - | 4.97 | 236,326 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,591 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,795 |
| Australia A-Z | 0 | - | 4.54 | 49,764 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,654 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,489 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,479 |
| Germany A-Z | 0 | - | 4.56 | 62,268 |
| Italy A-Z | 0 | - | 4.49 | 57,621 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,460 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,600 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,523 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,416 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,776 |
| Name Every Beatles Song | 0 | - | 4.97 | 233,779 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,175 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,034 |
| China A-Z | 0 | - | 4.55 | 66,662 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 217,962 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,249 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,224 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,768 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,536 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,484 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,001 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,882 |
| Mythology A-Z | 0 | - | 4.31 | 36,953 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,056 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,540 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,847 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,376 |
| Scotland A-Z | 0 | - | 4.73 | 41,007 |
| Champions League Winners | 0 | - | 4.92 | 994,915 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,772 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,281 |
| Name a Valid African Country | 0 | - | 4.98 | 152,793 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,229 |
| Celtic Nations | 0 | - | 4.69 | 46,796 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,258 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,102 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,069 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,184 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 273,943 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,105 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,884 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,211 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 112,995 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,627 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,548 |
| Departments of France | 0 | - | 4.93 | 52,629 |
| States of Germany | 0 | - | 4.96 | 149,740 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,896 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,480 |
| Regions of Italy | 0 | - | 4.92 | 74,585 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,341 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,723 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,122 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,049 |
| Lord of the Rings Decoder | 0 | - | 4.58 | 42,237 |
| Lord of the Rings Characters | 0 | - | 4.54 | 112,624 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,392 |
| England or Wales? | 0 | - | 4.94 | 45,276 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,258 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,234 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,063 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,144 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,923 |
| Political Figures by Last Name #1 | 0 | - | 4.56 | 67,332 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,398,581 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,122 |
| Countries that Beat Australia | 0 | - | 4.92 | 91,998 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,088 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,030 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,733 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,036 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,111 |
| Name that Greek Letter | 0 | - | 4.94 | 321,405 |
| Italian Foods | 0 | - | 4.30 | 72,117 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,905 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,013 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,479 |
| #1 Hits of the 1980s | 0 | - | 4.87 | 147,404 |
| Biblical Names Still Popular Today | 0 | - | 4.27 | 51,084 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,204 |
| Hindu Countries | 0 | - | 4.85 | 49,439 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,883 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,368 |
| California A-Z | 0 | - | 4.49 | 28,697 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,125 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,420 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,763 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,419 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,592 |
| Word Scramble - European Countries | 0 | - | 4.74 | 140,905 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,772 |
| Slavic Languages | 0 | - | 4.67 | 53,923 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,754 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,080 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,634 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,676 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,233 |
| The Trojan War | 0 | - | 4.83 | 39,392 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,322 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,403 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,786 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,955 |
| Roman Emperors | 0 | - | 4.95 | 118,269 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,269 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,583 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,221 |
| Spain A-Z | 0 | - | 4.23 | 28,265 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,475 |
| Geography of Spain | 0 | - | 4.59 | 21,937 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,391 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,403 |
| Middle Earth Geography | 0 | - | 4.56 | 39,503 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 80,763 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,507 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,402 |
| Imagine Lyrics | 0 | - | 4.53 | 43,038 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,509 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,278 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 19,842 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,110 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,640 |
| Countries that Beat China | 0 | - | 4.86 | 114,579 |
| Superhero Nicknames | 0 | - | 4.21 | 61,175 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 486,109 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 709,128 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,206 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,152 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 152,605 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 41,553 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 126,464 |
| Friends A-Z | 0 | - | 4.46 | 40,084 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,949 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,060 |
| Top European Languages on a Map | 0 | - | 4.77 | 130,974 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,349 |
| History of Russia Quiz | 0 | - | 4.49 | 31,771 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,542 |
| Olympian Gods Quiz | 0 | - | 4.96 | 494,512 |
| Ancient Greek Words | 0 | - | 4.92 | 110,532 |
| History of Italy | 0 | - | 4.55 | 31,796 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,079 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,458 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,958 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,247 |
| Countries that Beat Egypt | 0 | - | 4.87 | 56,529 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,315 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,344 |
| New York City A-Z | 0 | - | 4.18 | 32,169 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,515,917 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,895 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,298 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 110,811 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,757 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,624 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,154 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,761 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,615 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,578 |
| European Geography By Letter - V | 0 | - | 4.43 | 91,984 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,229 |
| Europe Map Quiz | 0 | - | 5.00 | 4,726,907 |
| European Physical Geography | 0 | - | 4.26 | 33,363 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,958 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,570 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,906 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,945 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,546 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,078 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,565 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,548 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,180 |
| Geography of Russia | 0 | - | 4.57 | 21,415 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,686 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,172 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,752 |
| History of Austria | 0 | - | 4.70 | 17,734 |
| Capitals of French Regions | 0 | - | 4.45 | 15,977 |
| Regions of France | 0 | - | 4.78 | 119,015 |
| France Immigration by Country | 0 | - | 4.72 | 75,908 |
| Geography of the French Empire | 0 | - | 4.48 | 26,910 |
| The French Revolution | 0 | - | 4.46 | 23,746 |
| France Multiple Choice | 0 | - | 4.38 | 40,617 |
| History of France | 0 | - | 4.59 | 55,863 |
| Famous Germans | 0 | - | 4.50 | 54,552 |
| German Groups of Things | 0 | - | 4.46 | 38,286 |
| Capitals of German States | 0 | - | 4.74 | 28,793 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,067 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,368 |
| Germany True or False? | 0 | - | 4.61 | 48,501 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,378 |
