| European Countries by First 2 Letters | 0 | - | 4.95 | 529,683 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,104 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,671 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,781 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,291 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,164 |
| Official European Union Languages | 0 | - | 4.97 | 238,570 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,901 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,316 |
| Australia A-Z | 0 | - | 4.54 | 49,988 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,909 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,044 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,002 |
| Germany A-Z | 0 | - | 4.56 | 62,623 |
| Italy A-Z | 0 | - | 4.49 | 58,333 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,618 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,292 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,851 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,696 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,903 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,372 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,776 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,225 |
| China A-Z | 0 | - | 4.55 | 67,267 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,868 |
| Category Elimination - U.S. States #2 | 0 | - | 4.83 | 134,265 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,389 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,394 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,643 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,028 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,367 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,311 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,026 |
| Mythology A-Z | 0 | - | 4.31 | 37,228 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,265 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,165 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,272 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,673 |
| Scotland A-Z | 0 | - | 4.73 | 41,290 |
| Champions League Winners | 0 | - | 4.92 | 1,007,152 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,633 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,630 |
| Name a Valid African Country | 0 | - | 4.98 | 154,125 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,534 |
| Celtic Nations | 0 | - | 4.69 | 46,954 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,167 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,465 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,374 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,921 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,668 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,190 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,176 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,756 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,024 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,411 |
| Departments of France | 0 | - | 4.93 | 54,175 |
| States of Germany | 0 | - | 4.95 | 152,686 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,073 |
| Regions of Italy | 0 | - | 4.92 | 75,933 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,557 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,209 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,016 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,239 |
| Lord of the Rings Decoder | 0 | - | 4.59 | 42,627 |
| Lord of the Rings Characters | 0 | - | 4.54 | 113,336 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,708 |
| England or Wales? | 0 | - | 4.94 | 45,713 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,437 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,330 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,270 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,663 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,045 |
| Political Figures by Last Name #1 | 0 | - | 4.56 | 68,055 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,423,762 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,297 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,878 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,506 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,773 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,476 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,833 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,682 |
| Name that Greek Letter | 0 | - | 4.93 | 323,520 |
| Italian Foods | 0 | - | 4.30 | 72,803 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,341 |
| Prime Ministers of the UK | 0 | - | 4.95 | 439,205 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,779 |
| #1 Hits of the 1980s | 0 | - | 4.87 | 148,635 |
| Biblical Names Still Popular Today | 0 | - | 4.28 | 51,416 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,057 |
| Hindu Countries | 0 | - | 4.86 | 50,177 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,584 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,507 |
| California A-Z | 0 | - | 4.49 | 28,790 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,748 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,022 |
| Countries that Beat Canada | 0 | - | 4.91 | 97,769 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,607 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,660 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,722 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,041 |
| Slavic Languages | 0 | - | 4.68 | 54,380 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,842 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,234 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,962 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,501 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,486 |
| The Trojan War | 0 | - | 4.83 | 39,739 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,893 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,625 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,513 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,549 |
| Roman Emperors | 0 | - | 4.95 | 120,095 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,891 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,368 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,477 |
| Spain A-Z | 0 | - | 4.23 | 28,451 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,790 |
| Geography of Spain | 0 | - | 4.59 | 22,078 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,965 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,376 |
| Middle Earth Geography | 0 | - | 4.56 | 39,817 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 81,489 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,841 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,781 |
| Imagine Lyrics | 0 | - | 4.53 | 43,287 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,957 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,688 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,174 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,766 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,963 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,179 |
| Countries that Beat China | 0 | - | 4.85 | 115,885 |
| Superhero Nicknames | 0 | - | 4.21 | 61,638 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 489,602 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 712,952 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,622 |
| Flags of the Countries that Start with C | 0 | - | 4.88 | 130,164 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 153,945 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 42,850 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 127,360 |
| Friends A-Z | 0 | - | 4.46 | 40,441 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,337 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,249 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,124 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,537 |
| History of Russia Quiz | 0 | - | 4.47 | 31,922 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,738 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,002 |
| Ancient Greek Words | 0 | - | 4.93 | 111,648 |
| History of Italy | 0 | - | 4.55 | 31,980 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,806 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,664 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,242 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,700 |
| Countries that Beat Egypt | 0 | - | 4.88 | 57,028 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,268 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,923 |
| New York City A-Z | 0 | - | 4.18 | 32,307 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,540,081 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 23,046 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,821 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,907 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,378 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,537 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,097 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,727 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,597 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,754 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,612 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,916 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,766 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,055 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,505 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,187 |
| European Physical Geography | 0 | - | 4.26 | 33,518 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,287 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,957 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,236 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,242 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,657 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,460 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,441 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,615 |
| Geography of Russia | 0 | - | 4.57 | 21,536 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,625 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,761 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,971 |
| History of Austria | 0 | - | 4.70 | 17,865 |
| Capitals of French Regions | 0 | - | 4.45 | 16,081 |
| Regions of France | 0 | - | 4.72 | 120,874 |
| France Immigration by Country | 0 | - | 4.70 | 76,541 |
| Geography of the French Empire | 0 | - | 4.45 | 27,062 |
| The French Revolution | 0 | - | 4.47 | 23,946 |
| France Multiple Choice | 0 | - | 4.39 | 40,745 |
| History of France | 0 | - | 4.59 | 57,005 |
| Famous Germans | 0 | - | 4.50 | 55,308 |
| German Groups of Things | 0 | - | 4.46 | 38,483 |
| Capitals of German States | 0 | - | 4.74 | 28,956 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,348 |
| Germany True or False? | 0 | - | 4.61 | 48,816 |
