| European Countries by First 2 Letters | 0 | - | 4.95 | 532,616 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,960 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,985 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,990 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,886 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,100 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,759 |
| Official European Union Languages | 0 | - | 4.97 | 239,853 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,684 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,016 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,719 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,571 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,330 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,064 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,003 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,397 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,835 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,886 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,511 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,534 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,196 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,470 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,436 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,044 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,839 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,985 |
| German Groups of Things | 0 | - | 4.47 | 38,642 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,703 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,466 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,849 |
| Champions League Winners | 0 | - | 4.92 | 1,016,531 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,690 |
| Celtic Nations | 0 | - | 4.61 | 47,105 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,003 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,796 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,919 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,008 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,593 |
| States of Germany | 0 | - | 4.95 | 154,605 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,712 |
| Regions of Italy | 0 | - | 4.92 | 77,125 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,820 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,366 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,780 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,134 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,587 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,585 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,902 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,759 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,969 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,119 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,266 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,771 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,934 |
| Departments of France | 0 | - | 4.93 | 55,214 |
| Word Chain - France | 0 | - | 4.38 | 42,944 |
| Italian Foods | 0 | - | 4.30 | 73,295 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,752 |
| British Groups of Things | 0 | - | 4.26 | 83,022 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,114 |
| England or Wales? | 0 | - | 4.94 | 45,977 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,210 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,399 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,763 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,819 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,464 |
| Name a Valid African Country | 0 | - | 4.98 | 155,076 |
| #1 Hits of the 2010s | 0 | - | 4.41 | 297,889 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,713 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,024 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,752 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,721 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,354 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,543 |
| Slavic Languages | 0 | - | 4.67 | 54,712 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,636 |
| The Trojan War | 0 | - | 4.83 | 40,002 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,159 |
| Name that Greek Letter | 0 | - | 4.93 | 325,049 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,005 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,743 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,608 |
| Roman Emperors | 0 | - | 4.95 | 121,258 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,897 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,633 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,302 |
| 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 | 74,105 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,071 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,343 |
| Topological Map of Asia Quiz | 0 | - | 4.82 | 20,458 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,500 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,426 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,874 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,879 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,351 |
| Word Chain - Germany | 0 | - | 4.31 | 22,687 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,878 |
| Ancient Greek Words | 0 | - | 4.93 | 112,516 |
| History of Italy | 0 | - | 4.55 | 32,156 |
| Word Chain - Italy | 0 | - | 4.07 | 23,225 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,398 |
| 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 | 43,245 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,430 |
| Geography of Spain | 0 | - | 4.59 | 22,187 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,416 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,505 |
| Name a Valid English City | 0 | - | 4.19 | 16,830 |
| Imagine Lyrics | 0 | - | 4.53 | 43,543 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 41,049 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,252 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,652 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,106 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,105 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,177 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,647 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,209 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,803 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,111 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,695 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,269 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,505 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,556 |
| 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 | 122,152 |
| France Immigration by Country | 0 | - | 4.70 | 76,948 |
| Famous Germans | 0 | - | 4.50 | 55,805 |
| Capitals of German States | 0 | - | 4.74 | 29,074 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,548 |
| Germany True or False? | 0 | - | 4.61 | 49,026 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,501 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,411 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,915 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,525 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,796 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,413 |
| British to American Food Translation | 0 | - | 3.38 | 52,050 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,573 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,822 |
| Beatles Lyrics First Names | 0 | - | 4.36 | 40,207 |
| Elton John Quiz | 0 | - | 4.49 | 18,527 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,663 |
| 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 | 280,776 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,099 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,457 |
| Most Popular NBA Jerseys | 0 | - | 4.38 | 840,522 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,635 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,138 |
| Australian Capitals | 0 | - | 4.92 | 62,837 |
| Word Chain - Australia | 0 | - | 4.38 | 38,248 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,864 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,185 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,913 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,756 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,873 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,441 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,317 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,579 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,284 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,048 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,643 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,287 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,668 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,651 |
| European Physical Geography | 0 | - | 4.26 | 33,599 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,953 |
| 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 | 104,776 |
| 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 | 57,642 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,561 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,246 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,051 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,928 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,589 |
| Countries Italy Declared War On | 0 | - | 4.75 | 44,972 |
| The Mafia Quiz | 0 | - | 4.46 | 23,441 |
| Byzantine History | 0 | - | 4.91 | 29,027 |
| Byzantine Emperors | 0 | - | 4.93 | 14,611 |
| History of The Netherlands | 0 | - | 4.46 | 17,556 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,395 |
| The Portuguese Empire | 0 | - | 4.58 | 12,107 |
| Canary Islands | 0 | - | 4.62 | 17,543 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 68,913 |
