| European Countries by First 2 Letters | 0 | - | 4.95 | 529,254 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,027 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,635 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,958 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,885 |
| German Groups of Things | 0 | - | 4.46 | 38,468 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,752 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,078 |
| Official European Union Languages | 0 | - | 4.97 | 238,369 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,765 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,946 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,949 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,808 |
| British Groups of Things | 0 | - | 4.25 | 82,859 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,594 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,003 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,603 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,451 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,379 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,247 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,916 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,200 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,218 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,335 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,298 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,378 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,331 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,962 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,181 |
| Champions League Winners | 0 | - | 4.92 | 1,005,807 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,319 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,052 |
| Celtic Nations | 0 | - | 4.69 | 46,928 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,035 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,199 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,888 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,905 |
| States of Germany | 0 | - | 4.96 | 152,343 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,978 |
| Regions of Italy | 0 | - | 4.92 | 75,792 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,074 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,854 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,137 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,687 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,215 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,265 |
| Name a Valid African Country | 0 | - | 4.98 | 153,965 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,369 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,656 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,463 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,409 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,967 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,657 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,578 |
| Departments of France | 0 | - | 4.93 | 54,017 |
| Word Chain - France | 0 | - | 4.38 | 42,768 |
| Italian Foods | 0 | - | 4.30 | 72,740 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,537 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,032 |
| England or Wales? | 0 | - | 4.94 | 45,658 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,195 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 109,910 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,724 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,918 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,876 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,494 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,024 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,155 |
| Countries that Beat Canada | 0 | - | 4.90 | 94,716 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,588 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,651 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,641 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,823 |
| Slavic Languages | 0 | - | 4.68 | 54,327 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,671 |
| The Trojan War | 0 | - | 4.83 | 39,696 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,908 |
| Name that Greek Letter | 0 | - | 4.93 | 323,324 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,741 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,595 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,486 |
| Roman Emperors | 0 | - | 4.95 | 119,894 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,273 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,448 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,602 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,663 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,014 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,739 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,889 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,918 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,131 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,834 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,143 |
| California Groups of Things | 0 | - | 4.25 | 45,464 |
| New York Groups of Things | 0 | - | 4.35 | 63,524 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,435 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,000 |
| History of Russia Quiz | 0 | - | 4.47 | 31,907 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,715 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,216 |
| Word Chain - Germany | 0 | - | 4.31 | 22,579 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,464 |
| Ancient Greek Words | 0 | - | 4.93 | 111,508 |
| History of Italy | 0 | - | 4.55 | 31,962 |
| Word Chain - Italy | 0 | - | 4.07 | 23,157 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,734 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,645 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,396 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,793 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,211 |
| Geography of Spain | 0 | - | 4.59 | 22,067 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,336 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,050 |
| Name a Valid English City | 0 | - | 4.19 | 16,713 |
| Imagine Lyrics | 0 | - | 4.53 | 43,257 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,654 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,960 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,065 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,829 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 114,368 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,563 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,273 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,299 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,370 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,368 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,681 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,572 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,896 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,277 |
| Europe Map Quiz | 0 | - | 5.00 | 4,760,045 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,472 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,411 |
| Countries that have Won the Most Eurovisions | 0 | - | 4.56 | 101,836 |
| Capitals of French Regions | 0 | - | 4.45 | 16,059 |
| Regions of France | 0 | - | 4.75 | 120,657 |
| France Immigration by Country | 0 | - | 4.70 | 76,474 |
| Famous Germans | 0 | - | 4.50 | 55,259 |
| Capitals of German States | 0 | - | 4.74 | 28,946 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,313 |
| Germany True or False? | 0 | - | 4.61 | 48,777 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,964 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,424 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,808 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,091 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,309 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,255 |
| British to American Food Translation | 0 | - | 3.38 | 51,958 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,644 |
| Beatles Lyrics First Names | 0 | - | 4.38 | 34,653 |
| Elton John Quiz | 0 | - | 4.48 | 18,464 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,499 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,539 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,242 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,932 |
| Groups of Things - The Bible | 0 | - | 4.44 | 55,251 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,737 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,646 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,049 |
| Australian Capitals | 0 | - | 4.92 | 62,715 |
| Word Chain - Australia | 0 | - | 4.38 | 38,134 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,741 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,332 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,571 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,489 |
| United States Map Quiz | 0 | - | 4.98 | 4,156,568 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,105 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,401 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,717 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,871 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,539 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,360 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,007 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,604 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,838 |
| European Physical Geography | 0 | - | 4.26 | 33,495 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,094 |
| European Geography A-Z | 0 | - | 4.29 | 49,241 |
| Geography of Russia | 0 | - | 4.57 | 21,522 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,936 |
| History of Austria | 0 | - | 4.70 | 17,854 |
| Austria... or Australia? | 0 | - | 4.68 | 104,304 |
| Famous French People | 0 | - | 4.06 | 35,447 |
| French Foods | 0 | - | 4.00 | 27,695 |
| Geography of the French Empire | 0 | - | 4.45 | 27,047 |
| The French Revolution | 0 | - | 4.46 | 23,925 |
| France Multiple Choice | 0 | - | 4.39 | 40,729 |
| History of France | 0 | - | 4.59 | 56,934 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,971 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,902 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,772 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,452 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,301 |
| The Mafia Quiz | 0 | - | 4.46 | 23,314 |
| Byzantine History | 0 | - | 4.91 | 28,822 |
| Byzantine Emperors | 0 | - | 4.94 | 13,558 |
| History of The Netherlands | 0 | - | 4.46 | 17,428 |
| The Vikings! | 0 | - | 4.46 | 28,338 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,101 |
| The Portuguese Empire | 0 | - | 4.58 | 12,060 |
| Canary Islands | 0 | - | 4.62 | 17,474 |
