| European Countries by First 2 Letters | 0 | - | 4.95 | 530,949 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,526 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,988 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,907 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,374 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,402 |
| Official European Union Languages | 0 | - | 4.97 | 239,086 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,237 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,518 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,432 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,275 |
| Australia A-Z | 0 | - | 4.54 | 50,055 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,975 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,750 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,152 |
| Germany A-Z | 0 | - | 4.56 | 62,725 |
| Italy A-Z | 0 | - | 4.49 | 58,502 |
| Most Common First Names in Spain | 0 | - | 4.27 | 46,792 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,480 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,939 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,805 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,218 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,331 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,189 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,807 |
| China A-Z | 0 | - | 4.55 | 67,412 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,612 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,766 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,445 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,719 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,698 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,861 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,522 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,420 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,251 |
| Mythology A-Z | 0 | - | 4.31 | 37,313 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,378 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,323 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,512 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,739 |
| Scotland A-Z | 0 | - | 4.73 | 41,356 |
| Champions League Winners | 0 | - | 4.92 | 1,010,907 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,625 |
| Celtic Nations | 0 | - | 4.69 | 47,013 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,217 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,474 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,967 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,525 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,687 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,486 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,965 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,775 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,243 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,457 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,283 |
| Departments of France | 0 | - | 4.93 | 54,615 |
| States of Germany | 0 | - | 4.95 | 153,550 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,360 |
| Regions of Italy | 0 | - | 4.92 | 76,419 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,637 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,514 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,661 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,491 |
| Lord of the Rings Decoder | 0 | - | 4.61 | 42,712 |
| Lord of the Rings Characters | 0 | - | 4.54 | 113,485 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,771 |
| England or Wales? | 0 | - | 4.94 | 45,827 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,227 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,662 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,589 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,937 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,350 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,815 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,891 |
| Name a Valid African Country | 0 | - | 4.98 | 154,509 |
| Political Figures by Last Name #1 | 0 | - | 4.56 | 68,415 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,430,400 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,105 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,631 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,123 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,692 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,009 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,611 |
| Name that Greek Letter | 0 | - | 4.93 | 324,336 |
| Italian Foods | 0 | - | 4.30 | 73,009 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,466 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,612 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,863 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,509 |
| #1 Hits of the 1980s | 0 | - | 4.87 | 148,886 |
| Biblical Names Still Popular Today | 0 | - | 4.28 | 51,514 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,762 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,955 |
| California A-Z | 0 | - | 4.49 | 28,813 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 508,277 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,642 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,629 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,668 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,678 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,955 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,838 |
| Slavic Languages | 0 | - | 4.68 | 54,515 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,156 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,282 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,048 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,735 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,834 |
| The Trojan War | 0 | - | 4.83 | 39,847 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,406 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,683 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,709 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,023 |
| Roman Emperors | 0 | - | 4.95 | 120,542 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,029 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,589 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,532 |
| Spain A-Z | 0 | - | 4.23 | 28,496 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,876 |
| Geography of Spain | 0 | - | 4.59 | 22,118 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,129 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,608 |
| Middle Earth Geography | 0 | - | 4.56 | 39,888 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 81,625 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,902 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,902 |
| Imagine Lyrics | 0 | - | 4.53 | 43,440 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,177 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,881 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,274 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,952 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,160 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,323 |
| Countries that Beat China | 0 | - | 4.85 | 116,241 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,266 |
| Hindu Countries | 0 | - | 4.86 | 50,349 |
| Superhero Nicknames | 0 | - | 4.21 | 61,747 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 490,791 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 714,289 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,997 |
| Flags of the Countries that Start with C | 0 | - | 4.88 | 130,391 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 154,249 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 43,170 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 127,603 |
| Friends A-Z | 0 | - | 4.46 | 40,530 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,428 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,290 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,453 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,878 |
| History of Russia Quiz | 0 | - | 4.47 | 31,970 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,797 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,253 |
| Ancient Greek Words | 0 | - | 4.93 | 112,040 |
| History of Italy | 0 | - | 4.55 | 32,085 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,057 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,747 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,323 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,886 |
| Countries that Beat Egypt | 0 | - | 4.88 | 57,161 |
| New York City A-Z | 0 | - | 4.18 | 32,339 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,547,132 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 23,085 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,959 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,165 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,102 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,500 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,885 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,439 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,107 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,485 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,284 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,100 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,353 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,939 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,489 |
| European Physical Geography | 0 | - | 4.26 | 33,552 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,391 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,047 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,344 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,319 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,966 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,581 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,864 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,972 |
| Geography of Russia | 0 | - | 4.57 | 21,560 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,225 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,916 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,038 |
| History of Austria | 0 | - | 4.70 | 17,924 |
| Capitals of French Regions | 0 | - | 4.45 | 16,123 |
| Regions of France | 0 | - | 4.70 | 121,416 |
| France Immigration by Country | 0 | - | 4.70 | 76,719 |
| Geography of the French Empire | 0 | - | 4.45 | 27,169 |
| The French Revolution | 0 | - | 4.47 | 24,079 |
| France Multiple Choice | 0 | - | 4.39 | 40,783 |
| History of France | 0 | - | 4.61 | 57,348 |
| Famous Germans | 0 | - | 4.50 | 55,570 |
| German Groups of Things | 0 | - | 4.46 | 38,552 |
| Capitals of German States | 0 | - | 4.74 | 29,005 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,419 |
| Germany True or False? | 0 | - | 4.61 | 48,919 |
