| European Countries by First 2 Letters | 0 | - | 4.95 | 532,593 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,946 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,976 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,982 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,857 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,099 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,756 |
| Official European Union Languages | 0 | - | 4.97 | 239,849 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,681 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,008 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,716 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,569 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,327 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,063 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,966 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,388 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,834 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,868 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,510 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,533 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,193 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,469 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,435 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,041 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,834 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,972 |
| German Groups of Things | 0 | - | 4.47 | 38,639 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,701 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,465 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,847 |
| Champions League Winners | 0 | - | 4.92 | 1,016,487 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,689 |
| Celtic Nations | 0 | - | 4.61 | 47,105 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,994 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,793 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,911 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,006 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,584 |
| States of Germany | 0 | - | 4.95 | 154,582 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,709 |
| Regions of Italy | 0 | - | 4.92 | 77,118 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,817 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,360 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,779 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,133 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,587 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,579 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,902 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,758 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,968 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,112 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,259 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,748 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,928 |
| Departments of France | 0 | - | 4.93 | 55,204 |
| Word Chain - France | 0 | - | 4.38 | 42,943 |
| Italian Foods | 0 | - | 4.30 | 73,294 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,751 |
| British Groups of Things | 0 | - | 4.26 | 83,021 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,113 |
| England or Wales? | 0 | - | 4.94 | 45,977 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,207 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,395 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,759 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,813 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,458 |
| Name a Valid African Country | 0 | - | 4.98 | 155,066 |
| #1 Hits of the 2010s | 0 | - | 4.41 | 297,874 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,708 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,022 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,749 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,721 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,353 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,496 |
| Slavic Languages | 0 | - | 4.67 | 54,707 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,631 |
| The Trojan War | 0 | - | 4.83 | 40,000 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,127 |
| Name that Greek Letter | 0 | - | 4.93 | 325,031 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,996 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,742 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,604 |
| Roman Emperors | 0 | - | 4.95 | 121,249 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,895 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,632 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,296 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,986 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,090 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,102 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,070 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,342 |
| Topological Map of Asia Quiz | 0 | - | 4.82 | 20,458 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,496 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,421 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,869 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,877 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,351 |
| Word Chain - Germany | 0 | - | 4.31 | 22,686 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,865 |
| Ancient Greek Words | 0 | - | 4.93 | 112,513 |
| History of Italy | 0 | - | 4.55 | 32,154 |
| Word Chain - Italy | 0 | - | 4.07 | 23,224 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,396 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,827 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,486 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,244 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,429 |
| Geography of Spain | 0 | - | 4.59 | 22,186 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,416 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,500 |
| Name a Valid English City | 0 | - | 4.19 | 16,829 |
| Imagine Lyrics | 0 | - | 4.53 | 43,542 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 41,048 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,248 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,648 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,100 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,056 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,169 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,635 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,200 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,770 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,107 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,687 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,144 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,501 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,554 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,751 |
| Capitals of French Regions | 0 | - | 4.45 | 16,185 |
| Regions of France | 0 | - | 4.70 | 122,146 |
| France Immigration by Country | 0 | - | 4.70 | 76,948 |
| Famous Germans | 0 | - | 4.50 | 55,802 |
| Capitals of German States | 0 | - | 4.74 | 29,074 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,547 |
| Germany True or False? | 0 | - | 4.61 | 49,026 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,500 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,410 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,905 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,522 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,795 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,412 |
| British to American Food Translation | 0 | - | 3.38 | 52,050 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,571 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,821 |
| Beatles Lyrics First Names | 0 | - | 4.36 | 40,207 |
| Elton John Quiz | 0 | - | 4.49 | 18,526 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,662 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,739 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,366 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,772 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,099 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,447 |
| Most Popular NBA Jerseys | 0 | - | 4.38 | 840,508 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,610 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,138 |
| Australian Capitals | 0 | - | 4.92 | 62,837 |
| Word Chain - Australia | 0 | - | 4.38 | 38,247 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,863 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,172 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,912 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,756 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,786 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,441 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,310 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,575 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,282 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,043 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,640 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,282 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,663 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,646 |
| European Physical Geography | 0 | - | 4.26 | 33,599 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,948 |
| European Geography A-Z | 0 | - | 4.29 | 49,488 |
| Geography of Russia | 0 | - | 4.57 | 21,604 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,137 |
| History of Austria | 0 | - | 4.70 | 17,977 |
| Austria... or Australia? | 0 | - | 4.67 | 104,774 |
| Famous French People | 0 | - | 4.05 | 36,118 |
| French Foods | 0 | - | 4.00 | 27,776 |
| Geography of the French Empire | 0 | - | 4.45 | 27,220 |
| The French Revolution | 0 | - | 4.47 | 24,149 |
| France Multiple Choice | 0 | - | 4.39 | 40,855 |
| History of France | 0 | - | 4.61 | 57,637 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,560 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,246 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,051 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,910 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,589 |
| Countries Italy Declared War On | 0 | - | 4.75 | 44,640 |
| The Mafia Quiz | 0 | - | 4.46 | 23,440 |
| Byzantine History | 0 | - | 4.91 | 29,026 |
| Byzantine Emperors | 0 | - | 4.93 | 14,609 |
| History of The Netherlands | 0 | - | 4.46 | 17,556 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,393 |
| The Portuguese Empire | 0 | - | 4.58 | 12,107 |
| Canary Islands | 0 | - | 4.62 | 17,543 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 68,907 |
