| European Countries by First 2 Letters | 0 | - | 4.95 | 526,631 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,770 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,430 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,345 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,831 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,542 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,644 |
| Official European Union Languages | 0 | - | 4.97 | 237,072 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,818 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,518 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,574 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,587 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,688 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,295 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,443 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,512 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,254 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,020 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,651 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,976 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,015 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,915 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,070 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,215 |
| German Groups of Things | 0 | - | 4.46 | 38,320 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,069 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,056 |
| Champions League Winners | 0 | - | 4.92 | 997,362 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,025 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,414 |
| Celtic Nations | 0 | - | 4.69 | 46,828 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,422 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,300 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,373 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,916 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,289 |
| States of Germany | 0 | - | 4.96 | 150,296 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,110 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,577 |
| Regions of Italy | 0 | - | 4.92 | 74,832 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,898 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,482 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,387 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,555 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,457 |
| Songs with Colors in the Title | 0 | - | 3.88 | 41,521 |
| Songs with Countries in the Title | 0 | - | 3.85 | 44,481 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,179 |
| Name a Valid African Country | 0 | - | 4.98 | 153,052 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,298 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,428 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,188 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,886 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,068 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,160 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,367 |
| Departments of France | 0 | - | 4.93 | 52,933 |
| Word Chain - France | 0 | - | 4.38 | 42,598 |
| Italian Foods | 0 | - | 4.31 | 72,254 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,388 |
| British Groups of Things | 0 | - | 4.25 | 82,709 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,964 |
| England or Wales? | 0 | - | 4.94 | 45,364 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,660 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,821 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,652 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,130 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,697 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,919 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,462 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,608 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,045 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,236 |
| Slavic Languages | 0 | - | 4.67 | 54,027 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,978 |
| The Trojan War | 0 | - | 4.83 | 39,467 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,581 |
| Name that Greek Letter | 0 | - | 4.94 | 321,843 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,705 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,446 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,115 |
| Roman Emperors | 0 | - | 4.95 | 118,614 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,735 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,268 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,481 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,467 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,929 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,477 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,706 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,592 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,256 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,894 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,226 |
| History of Russia Quiz | 0 | - | 4.49 | 31,802 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,588 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,109 |
| Word Chain - Germany | 0 | - | 4.31 | 22,484 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,855 |
| Ancient Greek Words | 0 | - | 4.92 | 110,794 |
| History of Italy | 0 | - | 4.55 | 31,842 |
| Word Chain - Italy | 0 | - | 4.07 | 23,098 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,231 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,496 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,292 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,391 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,003 |
| Geography of Spain | 0 | - | 4.59 | 21,978 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,245 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,823 |
| Name a Valid English City | 0 | - | 4.19 | 16,638 |
| Imagine Lyrics | 0 | - | 4.53 | 43,074 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,335 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,816 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,684 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,463 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,960 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,912 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,765 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,276 |
| European Geography By Letter - M | 0 | - | 4.61 | 129,005 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,721 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,677 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,057 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,371 |
| Europe Map Quiz | 0 | - | 5.00 | 4,734,315 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,638 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,198 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,657 |
| Capitals of French Regions | 0 | - | 4.45 | 15,992 |
| Regions of France | 0 | - | 4.78 | 119,400 |
| France Immigration by Country | 0 | - | 4.72 | 76,013 |
| Famous Germans | 0 | - | 4.50 | 54,663 |
| Capitals of German States | 0 | - | 4.74 | 28,820 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,113 |
| Germany True or False? | 0 | - | 4.61 | 48,555 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,523 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,609 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,913 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,662 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,874 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,080 |
| British to American Food Translation | 0 | - | 3.38 | 51,864 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,408 |
| Beatles Lyrics First Names | 0 | - | 4.38 | 34,484 |
| Elton John Quiz | 0 | - | 4.48 | 18,411 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,343 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,353 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,168 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,262 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,657 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,001 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,987 |
| Australian Capitals | 0 | - | 4.92 | 62,599 |
| Word Chain - Australia | 0 | - | 4.37 | 38,021 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,623 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,208 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,480 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,300 |
| United States Map Quiz | 0 | - | 4.98 | 4,143,414 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,769 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,270 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,708 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,942 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,328 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,537 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,202 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,958 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,327 |
| European Physical Geography | 0 | - | 4.26 | 33,382 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,542 |
| European Geography A-Z | 0 | - | 4.28 | 49,028 |
| Geography of Russia | 0 | - | 4.57 | 21,437 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,799 |
| History of Austria | 0 | - | 4.70 | 17,765 |
| Austria... or Australia? | 0 | - | 4.68 | 103,924 |
| French Foods | 0 | - | 4.00 | 27,599 |
| Geography of the French Empire | 0 | - | 4.45 | 26,947 |
| The French Revolution | 0 | - | 4.46 | 23,801 |
| France Multiple Choice | 0 | - | 4.38 | 40,645 |
| History of France | 0 | - | 4.59 | 56,188 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,393 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,802 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,785 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,169 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,324 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,013 |
| The Mafia Quiz | 0 | - | 4.46 | 23,212 |
| Byzantine History | 0 | - | 4.91 | 28,648 |
| History of The Netherlands | 0 | - | 4.46 | 17,326 |
| The Vikings! | 0 | - | 4.46 | 28,254 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,730 |
| The Portuguese Empire | 0 | - | 4.54 | 12,000 |
| Canary Islands | 0 | - | 4.61 | 17,412 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 66,287 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,202 |
| American to British Word Translation | 0 | - | 4.11 | 135,093 |
| British Spellings | 0 | - | 4.07 | 99,270 |
| British Acronyms | 0 | - | 4.39 | 45,640 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,736 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,275 |
