| European Countries by First 2 Letters | 0 | - | 4.95 | 526,281 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,948 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,392 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,509 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,794 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,572 |
| Official European Union Languages | 0 | - | 4.97 | 236,493 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,686 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,128 |
| Australia A-Z | 0 | - | 4.54 | 49,780 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,682 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,592 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,531 |
| Germany A-Z | 0 | - | 4.56 | 62,313 |
| Italy A-Z | 0 | - | 4.49 | 57,705 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,470 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,661 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,560 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,441 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,892 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,038 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,303 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,793 |
| China A-Z | 0 | - | 4.55 | 66,720 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,487 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,462 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,237 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,836 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,785 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,836 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,044 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,927 |
| Mythology A-Z | 0 | - | 4.31 | 36,991 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,458 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,613 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,936 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,391 |
| Scotland A-Z | 0 | - | 4.73 | 41,035 |
| Champions League Winners | 0 | - | 4.92 | 996,145 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,853 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,347 |
| Name a Valid African Country | 0 | - | 4.98 | 152,920 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,258 |
| Celtic Nations | 0 | - | 4.69 | 46,810 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,317 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,200 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,223 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,476 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,164 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,222 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,129 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,693 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,218 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,758 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,936 |
| Departments of France | 0 | - | 4.93 | 52,787 |
| States of Germany | 0 | - | 4.96 | 150,006 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,999 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,517 |
| Regions of Italy | 0 | - | 4.92 | 74,682 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,359 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,792 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,307 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,137 |
| Lord of the Rings Decoder | 0 | - | 4.58 | 42,270 |
| Lord of the Rings Characters | 0 | - | 4.54 | 112,684 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,403 |
| England or Wales? | 0 | - | 4.94 | 45,306 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,458 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,338 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,224 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,225 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,035 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,411 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,401,406 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,165 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,087 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,133 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,134 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,780 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,098 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,767 |
| Name that Greek Letter | 0 | - | 4.94 | 321,626 |
| Italian Foods | 0 | - | 4.31 | 72,167 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,939 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,547 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,502 |
| #1 Hits of the 1980s | 0 | - | 4.86 | 147,516 |
| Biblical Names Still Popular Today | 0 | - | 4.27 | 51,105 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,317 |
| Hindu Countries | 0 | - | 4.85 | 49,555 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,946 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,539 |
| California A-Z | 0 | - | 4.49 | 28,703 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,711 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,645 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,843 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,445 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,598 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,975 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,008 |
| Slavic Languages | 0 | - | 4.67 | 53,969 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,875 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,093 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,672 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,760 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,351 |
| The Trojan War | 0 | - | 4.83 | 39,424 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,509 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,427 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,866 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,038 |
| Roman Emperors | 0 | - | 4.95 | 118,440 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,337 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,660 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,242 |
| Spain A-Z | 0 | - | 4.23 | 28,277 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,503 |
| Geography of Spain | 0 | - | 4.59 | 21,960 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,451 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,496 |
| Middle Earth Geography | 0 | - | 4.56 | 39,534 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 80,827 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,531 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,439 |
| Imagine Lyrics | 0 | - | 4.53 | 43,061 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,545 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,313 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 19,880 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,173 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,672 |
| Countries that Beat China | 0 | - | 4.86 | 114,689 |
| Superhero Nicknames | 0 | - | 4.21 | 61,212 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 486,381 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 709,483 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,365 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,265 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 152,926 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 41,729 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 126,596 |
| Friends A-Z | 0 | - | 4.46 | 40,129 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,970 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,074 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,110 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,444 |
| History of Russia Quiz | 0 | - | 4.49 | 31,788 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,563 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,926 |
| Ancient Greek Words | 0 | - | 4.92 | 110,676 |
| History of Italy | 0 | - | 4.55 | 31,813 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,153 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,477 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,979 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,288 |
| Countries that Beat Egypt | 0 | - | 4.88 | 56,582 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,495 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,401 |
| New York City A-Z | 0 | - | 4.18 | 32,189 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,518,078 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,909 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,379 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 110,882 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,820 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,690 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,203 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,867 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,657 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,614 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,012 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,292 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,541 |
| European Physical Geography | 0 | - | 4.26 | 33,373 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,985 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,610 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,941 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,978 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,581 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,140 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,604 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,698 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,331 |
| Geography of Russia | 0 | - | 4.57 | 21,424 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,810 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,222 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,772 |
| History of Austria | 0 | - | 4.70 | 17,743 |
| Capitals of French Regions | 0 | - | 4.45 | 15,983 |
| Regions of France | 0 | - | 4.78 | 119,200 |
| France Immigration by Country | 0 | - | 4.72 | 75,955 |
| Geography of the French Empire | 0 | - | 4.48 | 26,925 |
| The French Revolution | 0 | - | 4.46 | 23,780 |
| France Multiple Choice | 0 | - | 4.38 | 40,633 |
| History of France | 0 | - | 4.59 | 56,011 |
| Famous Germans | 0 | - | 4.50 | 54,604 |
| German Groups of Things | 0 | - | 4.46 | 38,304 |
| Capitals of German States | 0 | - | 4.74 | 28,810 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,090 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,382 |
| Germany True or False? | 0 | - | 4.61 | 48,529 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,460 |
