| European Countries by First 2 Letters | 0 | - | 4.95 | 529,489 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,234 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,799 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,109 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,367 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,766 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,118 |
| Official European Union Languages | 0 | - | 4.97 | 238,494 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,834 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,160 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,195 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,035 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,982 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,832 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,622 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,244 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,703 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,910 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,385 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,271 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,935 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,220 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,230 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,367 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,472 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,814 |
| German Groups of Things | 0 | - | 4.46 | 38,474 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,349 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,003 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,240 |
| Champions League Winners | 0 | - | 4.92 | 1,006,611 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,335 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,108 |
| Celtic Nations | 0 | - | 4.69 | 46,941 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,123 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,528 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,973 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,125 |
| States of Germany | 0 | - | 4.96 | 152,551 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,028 |
| Regions of Italy | 0 | - | 4.92 | 75,860 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,146 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,930 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,200 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,694 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,278 |
| Songs with Colors in the Title | 0 | - | 3.88 | 41,626 |
| Songs with Countries in the Title | 0 | - | 3.85 | 44,567 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,339 |
| Name a Valid African Country | 0 | - | 4.98 | 154,064 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,485 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,670 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,490 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,437 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,050 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,967 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,703 |
| Departments of France | 0 | - | 4.93 | 54,089 |
| Word Chain - France | 0 | - | 4.38 | 42,778 |
| Italian Foods | 0 | - | 4.30 | 72,777 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,545 |
| British Groups of Things | 0 | - | 4.25 | 82,863 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,035 |
| England or Wales? | 0 | - | 4.94 | 45,686 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,333 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,020 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,798 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,000 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,439 |
| Countries that Beat Canada | 0 | - | 4.91 | 97,295 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,599 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,654 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,694 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,949 |
| Slavic Languages | 0 | - | 4.68 | 54,355 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,783 |
| The Trojan War | 0 | - | 4.83 | 39,723 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,372 |
| Name that Greek Letter | 0 | - | 4.93 | 323,432 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,832 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,610 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,523 |
| Roman Emperors | 0 | - | 4.95 | 120,029 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,339 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,463 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,610 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,679 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,021 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,769 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,900 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,948 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,156 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,917 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,172 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,074 |
| History of Russia Quiz | 0 | - | 4.47 | 31,917 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,726 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,226 |
| Word Chain - Germany | 0 | - | 4.31 | 22,586 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,784 |
| Ancient Greek Words | 0 | - | 4.93 | 111,592 |
| History of Italy | 0 | - | 4.55 | 31,973 |
| Word Chain - Italy | 0 | - | 4.07 | 23,165 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,777 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,659 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,397 |
| Countries that Beat Iceland | 0 | - | 4.82 | 42,855 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,233 |
| Geography of Spain | 0 | - | 4.59 | 22,076 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,340 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,063 |
| Name a Valid English City | 0 | - | 4.19 | 16,727 |
| Imagine Lyrics | 0 | - | 4.53 | 43,278 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,676 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,965 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,197 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,228 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 118,789 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,952 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,606 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,506 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,638 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,536 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,837 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,693 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,003 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,426 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,644 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,594 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,428 |
| Capitals of French Regions | 0 | - | 4.45 | 16,068 |
| Regions of France | 0 | - | 4.72 | 120,767 |
| France Immigration by Country | 0 | - | 4.70 | 76,507 |
| Famous Germans | 0 | - | 4.50 | 55,291 |
| Capitals of German States | 0 | - | 4.74 | 28,953 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,332 |
| Germany True or False? | 0 | - | 4.61 | 48,797 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,013 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,489 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,082 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,129 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,353 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,266 |
| British to American Food Translation | 0 | - | 3.38 | 51,965 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,661 |
| Beatles Lyrics First Names | 0 | - | 4.38 | 34,672 |
| Elton John Quiz | 0 | - | 4.48 | 18,465 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,509 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,559 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,248 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 279,137 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,756 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,233 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,054 |
| Australian Capitals | 0 | - | 4.92 | 62,721 |
| Word Chain - Australia | 0 | - | 4.38 | 38,141 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,749 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,345 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,575 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,517 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,289 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,143 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,603 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,912 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,045 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,716 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,531 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,168 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,734 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,925 |
| European Physical Geography | 0 | - | 4.26 | 33,509 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,186 |
| European Geography A-Z | 0 | - | 4.29 | 49,264 |
| Geography of Russia | 0 | - | 4.57 | 21,527 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,960 |
| History of Austria | 0 | - | 4.70 | 17,861 |
| Austria... or Australia? | 0 | - | 4.68 | 104,339 |
| Famous French People | 0 | - | 4.06 | 35,566 |
| French Foods | 0 | - | 4.00 | 27,698 |
| Geography of the French Empire | 0 | - | 4.45 | 27,059 |
| The French Revolution | 0 | - | 4.47 | 23,929 |
| France Multiple Choice | 0 | - | 4.39 | 40,741 |
| History of France | 0 | - | 4.59 | 56,973 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,993 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,913 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,933 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,462 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,326 |
| The Mafia Quiz | 0 | - | 4.46 | 23,321 |
| Byzantine History | 0 | - | 4.91 | 28,867 |
| Byzantine Emperors | 0 | - | 4.92 | 14,076 |
| History of The Netherlands | 0 | - | 4.46 | 17,431 |
| The Vikings! | 0 | - | 4.46 | 28,342 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,124 |
| The Portuguese Empire | 0 | - | 4.58 | 12,064 |
| Canary Islands | 0 | - | 4.62 | 17,480 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 67,431 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,698 |
| American to British Word Translation | 0 | - | 4.14 | 139,046 |
| British Spellings | 0 | - | 4.06 | 99,448 |
