| European Countries by First 2 Letters | 0 | - | 4.95 | 526,354 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,972 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,496 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,513 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,801 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,581 |
| Official European Union Languages | 0 | - | 4.97 | 236,534 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,703 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,204 |
| Australia A-Z | 0 | - | 4.54 | 49,781 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,687 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,790 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,540 |
| Germany A-Z | 0 | - | 4.56 | 62,319 |
| Italy A-Z | 0 | - | 4.49 | 57,724 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,474 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,682 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,568 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,444 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,918 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,098 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,341 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,932 |
| China A-Z | 0 | - | 4.55 | 66,731 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,552 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,510 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,239 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,851 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,828 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,890 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,048 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,932 |
| Mythology A-Z | 0 | - | 4.31 | 36,999 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,552 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,617 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,963 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,394 |
| Scotland A-Z | 0 | - | 4.73 | 41,045 |
| Champions League Winners | 0 | - | 4.92 | 996,368 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,863 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,364 |
| Name a Valid African Country | 0 | - | 4.98 | 152,936 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,263 |
| Celtic Nations | 0 | - | 4.69 | 46,812 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,333 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,216 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,262 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,539 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,206 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,263 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,173 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,795 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,251 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,793 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,007 |
| Departments of France | 0 | - | 4.93 | 52,829 |
| States of Germany | 0 | - | 4.96 | 150,056 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,016 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,520 |
| Regions of Italy | 0 | - | 4.92 | 74,727 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,368 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,814 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,352 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,179 |
| Lord of the Rings Decoder | 0 | - | 4.58 | 42,276 |
| Lord of the Rings Characters | 0 | - | 4.54 | 112,700 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,406 |
| England or Wales? | 0 | - | 4.94 | 45,318 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,498 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,361 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,269 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,251 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,050 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,429 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,401,984 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,176 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,105 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,147 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,154 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,837 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,110 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,932 |
| Name that Greek Letter | 0 | - | 4.94 | 321,672 |
| Italian Foods | 0 | - | 4.31 | 72,189 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,952 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,654 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,509 |
| #1 Hits of the 1980s | 0 | - | 4.86 | 147,534 |
| Biblical Names Still Popular Today | 0 | - | 4.27 | 51,111 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,354 |
| Hindu Countries | 0 | - | 4.85 | 49,581 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,955 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,582 |
| California A-Z | 0 | - | 4.49 | 28,708 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,881 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,710 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,853 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,450 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,599 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,991 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,049 |
| Slavic Languages | 0 | - | 4.67 | 53,985 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,898 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,094 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,677 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,777 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,380 |
| The Trojan War | 0 | - | 4.83 | 39,428 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,538 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,429 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,874 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,049 |
| Roman Emperors | 0 | - | 4.95 | 118,492 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,346 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,677 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,246 |
| Spain A-Z | 0 | - | 4.23 | 28,281 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,505 |
| Geography of Spain | 0 | - | 4.59 | 21,966 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,468 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,516 |
| Middle Earth Geography | 0 | - | 4.56 | 39,539 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 80,840 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,537 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,445 |
| Imagine Lyrics | 0 | - | 4.53 | 43,062 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,558 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,321 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 19,886 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,187 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,682 |
| Countries that Beat China | 0 | - | 4.86 | 114,713 |
| Superhero Nicknames | 0 | - | 4.21 | 61,224 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 486,465 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 709,569 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,391 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,296 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 152,953 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 41,756 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 126,621 |
| Friends A-Z | 0 | - | 4.46 | 40,138 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,976 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,078 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,134 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,471 |
| History of Russia Quiz | 0 | - | 4.49 | 31,794 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,565 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,149 |
| Ancient Greek Words | 0 | - | 4.92 | 110,696 |
| History of Italy | 0 | - | 4.55 | 31,815 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,163 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,482 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,981 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,296 |
| Countries that Beat Egypt | 0 | - | 4.88 | 56,599 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,537 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,411 |
| New York City A-Z | 0 | - | 4.18 | 32,194 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,518,662 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,914 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,413 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 110,913 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,861 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,716 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,222 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,902 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,675 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,630 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,028 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,309 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,400 |
| European Physical Geography | 0 | - | 4.26 | 33,373 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,991 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,618 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,944 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,982 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,600 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,149 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,610 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,740 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,354 |
| Geography of Russia | 0 | - | 4.57 | 21,427 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,838 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,240 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,775 |
| History of Austria | 0 | - | 4.70 | 17,747 |
| Capitals of French Regions | 0 | - | 4.45 | 15,985 |
| Regions of France | 0 | - | 4.78 | 119,255 |
| France Immigration by Country | 0 | - | 4.72 | 75,966 |
| Geography of the French Empire | 0 | - | 4.48 | 26,934 |
| The French Revolution | 0 | - | 4.46 | 23,785 |
| France Multiple Choice | 0 | - | 4.38 | 40,635 |
| History of France | 0 | - | 4.59 | 56,050 |
| Famous Germans | 0 | - | 4.50 | 54,616 |
| German Groups of Things | 0 | - | 4.46 | 38,306 |
| Capitals of German States | 0 | - | 4.74 | 28,812 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,096 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,383 |
| Germany True or False? | 0 | - | 4.61 | 48,535 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,465 |
