| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.90 | 79,644 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 457,222 |
| Count to 10 in Europe: Pro | 0 | - | 4.81 | 60,943 |
| Official European Union Languages | 0 | - | 4.98 | 200,388 |
| European Countries in their Native Language | 0 | - | 4.99 | 143,930 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 386,211 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,421 |
| Slavic Languages | 0 | - | 4.58 | 48,725 |
| Countries that Beat Switzerland | 0 | - | 4.85 | 37,613 |
| Europe Geography Decoder | 0 | - | 4.89 | 63,259 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 39,046 |
| Russia Multiple Choice | 0 | - | 4.55 | 38,092 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 285,361 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 115,916 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 74,663 |
| Eastern Europe Map Quiz | 0 | - | 4.89 | 115,676 |
| Slavic Countries | 0 | - | 4.96 | 100,469 |
| Germany Multiple Choice | 0 | - | 4.81 | 49,356 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 20,855 |
| Champions League Winners | 0 | - | 4.91 | 853,180 |
| Celtic Nations | 0 | - | 4.76 | 44,647 |
| European Geography By Letter - A | 0 | - | 4.51 | 124,444 |
| European Geography By Letter - B #1 | 0 | - | 4.72 | 103,612 |
| European Geography By Letter - C | 0 | - | 4.43 | 104,978 |
| European Geography By Letter - D | 0 | - | 4.53 | 99,568 |
| European Geography By Letter - L | 0 | - | 4.51 | 105,145 |
| European Geography By Letter - M | 0 | - | 4.55 | 114,470 |
| European Geography By Letter - P | 0 | - | 4.80 | 89,645 |
| European Geography By Letter - N | 0 | - | 4.43 | 93,467 |
| European Geography By Letter - V | 0 | - | 4.45 | 86,498 |
| European Geography By Letter - S #1 | 0 | - | 4.58 | 93,939 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 31,793 |
| Regions of Spain Quiz | 0 | - | 4.85 | 94,943 |
| Cantons of Switzerland | 0 | - | 4.96 | 40,327 |
| United Kingdom A-Z | 0 | - | 4.53 | 80,879 |
| Asian Geography By Letter - B | 0 | - | 4.82 | 61,202 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 222,088 |
| Catholic Countries in Europe | 0 | - | 4.87 | 83,689 |
| History of Russia Quiz | 0 | - | 4.48 | 29,862 |
| Federal Subjects of Russia | 0 | - | 4.95 | 112,471 |
| Geography of Russia | 0 | - | 4.54 | 20,174 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 102,058 |
| States of Germany | 0 | - | 4.93 | 123,674 |
| Germany Immigration by Country | 0 | - | 4.90 | 69,722 |
| Counties of Ireland | 0 | - | 4.89 | 159,171 |
| Regions of Italy | 0 | - | 4.88 | 60,448 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,607 |
| England or Wales? | 0 | - | 4.93 | 40,244 |
| All Champions League Teams Ever | 0 | - | 4.89 | 104,469 |
| European Geography By Letter - E | 0 | - | 4.21 | 105,476 |
| European Geography By Letter - F | 0 | - | 4.15 | 85,313 |
| European Geography By Letter - H | 0 | - | 4.30 | 88,923 |
| European Geography By Letter - G | 0 | - | 4.25 | 95,133 |
| European Geography By Letter - I | 0 | - | 4.09 | 88,831 |
| European Geography By Letter - K | 0 | - | 4.17 | 64,537 |
| European Geography By Letter - O | 0 | - | 4.28 | 57,794 |
| European Geography By Letter - R | 0 | - | 4.40 | 87,575 |
| European Geography by Letter - W | 0 | - | 4.22 | 78,287 |
| European Geography By Letter - T | 0 | - | 4.39 | 70,933 |
| European Geography By Letter - S #2 | 0 | - | 4.17 | 46,787 |
| European Geography A-Z | 0 | - | 4.37 | 45,397 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,833 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 246,922 |
| Word Chain - Russia | 0 | - | 4.41 | 14,815 |
| Famous Germans | 0 | - | 4.39 | 35,186 |
| Famous Italians | 0 | - | 4.40 | 66,238 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,706 |
| Roman Emperors | 0 | - | 4.95 | 95,875 |
| Spanish Immigration by Country | 0 | - | 4.63 | 51,860 |
| Word Scramble - European Countries | 0 | - | 4.72 | 113,870 |
| Top 20 Football Clubs in Europe | 0 | - | 4.49 | 85,517 |
| Name a Major European City A-Z | 0 | - | 4.34 | 42,903 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 56,363 |
| Famous Dutch and Belgian People | 0 | - | 4.51 | 16,800 |
| The Trojan War | 0 | - | 4.81 | 35,945 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 584,301 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 85,396 |
| Geography of the Dutch Empire | 0 | - | 4.71 | 32,434 |
| Famous Nordic People | 0 | - | 4.40 | 10,677 |
| Famous Spaniards Quiz | 0 | - | 4.19 | 10,930 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 74,685 |
| The British Royal Family - Modern Times | 0 | - | 4.12 | 20,628 |
| London A-Z | 0 | - | 4.19 | 38,488 |
| Africa A-Z | 0 | - | 4.54 | 43,713 |
| Top European Languages on a Map | 0 | - | 4.76 | 118,148 |
| Famous Russians Quiz | 0 | - | 4.15 | 22,631 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,063 |
| Famous French People | 0 | - | 4.15 | 24,133 |
| Ancient Greece A-Z | 0 | - | 4.65 | 20,737 |
| Olympian Gods Quiz | 0 | - | 4.96 | 457,217 |
| Name that Greek Letter | 0 | - | 4.94 | 295,908 |
| Famous Irish People | 0 | - | 4.01 | 44,458 |
| Italy Multiple Choice | 0 | - | 4.74 | 93,850 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,671 |
| Provinces of the Netherlands | 0 | - | 4.61 | 33,327 |
| Switzerland A-Z | 0 | - | 4.40 | 18,455 |
| 100 Greatest Britons Quiz | 0 | - | 4.44 | 46,023 |
| British Acronyms | 0 | - | 4.42 | 43,367 |
| Foods in a Full English Breakfast | 0 | - | 4.41 | 73,425 |
| Beatles Songs Quiz | 0 | - | 4.95 | 207,590 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 273,775 |
| Famous Scottish People | 0 | - | 4.19 | 17,507 |
| Asian Geography By Letter - A | 0 | - | 4.66 | 66,376 |
| Asian Geography by Letter - H | 0 | - | 4.47 | 61,005 |
| Asian Geography By Letter - M | 0 | - | 4.46 | 57,301 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 45,474 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 255,327 |
| Asian Geography By Letter - L | 0 | - | 4.45 | 38,316 |
| Middle East A-Z | 0 | - | 4.45 | 43,061 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 244,743 |
| The Americas Geography by Letter - B | 0 | - | 4.51 | 48,881 |
| The Americas Geography by Letter - S | 0 | - | 4.56 | 41,548 |
| Major non-NATO U.S. Allies | 0 | - | 4.43 | 33,430 |
| Europe Map Quiz | 0 | - | 5.00 | 4,291,956 |
| Europe Geography Quiz #1 | 0 | - | 4.53 | 67,085 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 67,556 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 66,216 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 57,884 |
| Famous Swiss and Austrian People | 0 | - | 4.36 | 13,658 |
| Regions of France | 0 | - | 4.63 | 100,460 |
| France A-Z | 0 | - | 4.16 | 25,707 |
| France Immigration by Country | 0 | - | 4.80 | 68,948 |
| German Groups of Things | 0 | - | 4.43 | 35,969 |
| Capitals of German States | 0 | - | 4.71 | 27,177 |
| Chancellors of Germany, 1949–present | 0 | - | 4.54 | 17,874 |
| Germany True or False? | 0 | - | 4.63 | 44,460 |
| Largest Islands of Greece | 0 | - | 4.57 | 39,736 |
| Ancient Greek Words | 0 | - | 4.90 | 97,453 |
| Capitals of Italian Regions | 0 | - | 4.52 | 26,125 |
| 100 Most Common English Words | 0 | - | 4.90 | 1,169,550 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 399,509 |
| The Vikings! | 0 | - | 4.44 | 27,107 |
| Sweden Immigration by Country | 0 | - | 4.66 | 42,288 |
| The Portuguese Empire | 0 | - | 4.54 | 11,339 |
| British Words Quiz #2 | 0 | - | 4.04 | 106,886 |
| Languages of the United Kingdom | 0 | - | 4.10 | 38,332 |
| Champions League Top 4 | 0 | - | 4.79 | 105,112 |
| Asian Cities A-Z | 0 | - | 4.51 | 30,174 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,344,841 |
| Asia Map Quiz | 0 | - | 4.99 | 785,093 |
| A Quiz About Islam | 0 | - | 4.28 | 45,045 |
| Africa Map Quiz | 0 | - | 5.00 | 1,938,854 |
| Oceania Map Quiz | 0 | - | 4.98 | 567,923 |
| Australian Capitals | 0 | - | 4.92 | 60,680 |
| European Physical Geography | 0 | - | 4.20 | 31,917 |
| Russian History A-Z | 0 | - | 4.35 | 17,395 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 37,819 |
| Slovakia... or Slovenia? | 0 | - | 4.79 | 39,674 |
| Geography of the French Empire | 0 | - | 4.49 | 25,409 |
| The French Revolution | 0 | - | 4.45 | 21,917 |
| France Multiple Choice | 0 | - | 4.40 | 38,576 |
| History of France Quiz | 0 | - | 4.55 | 39,684 |
| Figures from Greek Mythology | 0 | - | 4.92 | 169,426 |
| History of Ireland Quiz | 0 | - | 4.44 | 18,906 |
| History of Italy | 0 | - | 4.49 | 29,789 |
| Most Common English Verbs - Extreme | 0 | - | 4.95 | 136,535 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,388 |
| Geography of the Roman Empire | 0 | - | 4.55 | 48,497 |
| Byzantine History | 0 | - | 4.87 | 26,231 |
| Kings of Spain Quiz | 0 | - | 4.12 | 12,832 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,613 |
| Canary Islands | 0 | - | 4.61 | 16,562 |
| Switzerland Immigration by Country | 0 | - | 4.79 | 21,021 |
| British Spellings Quiz | 0 | - | 4.04 | 94,662 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 65,770 |
| British Groups of Things | 0 | - | 4.26 | 80,131 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,734 |
| British Monopoly Board | 0 | - | 4.51 | 39,245 |
| Wonderwall Lyrics | 0 | - | 4.22 | 68,786 |
| Best-Selling British Musical Acts | 0 | - | 4.47 | 43,518 |
| Champions League All-Time Table | 0 | - | 4.16 | 116,686 |
| Champions League Top Goal Scorers | 0 | - | 4.22 | 166,672 |
| Asian Geography By Letter - S | 0 | - | 4.19 | 43,475 |
| Asian Geography by Letter - D | 0 | - | 4.25 | 48,192 |
| Asian Geography by Letter - G | 0 | - | 4.36 | 47,711 |
| Asian Geography by Letter - I | 0 | - | 4.36 | 63,261 |
| Asian Geography by Letter - C | 0 | - | 4.31 | 60,646 |
| Asian Geography by Letter - P | 0 | - | 4.40 | 45,531 |
| Asian Geography by Letter - N | 0 | - | 4.30 | 46,092 |
| South and Central Asia Map Quiz | 0 | - | 4.92 | 79,834 |
| Asian Geography By Letter - O | 0 | - | 4.78 | 20,478 |
| Asian Geography By Letter - R | 0 | - | 4.44 | 14,160 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,281,099 |
| Countries That Don't Recognize Israel | 0 | - | 4.66 | 29,277 |
| Japanese Companies | 0 | - | 4.25 | 32,019 |
| Countries of Africa | 0 | - | 5.00 | 2,166,898 |
| African East Coast | 0 | - | 4.97 | 84,184 |
| Western Africa Map Quiz | 0 | - | 4.97 | 60,895 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 40,294 |
| Australia Map Quiz | 0 | - | 4.95 | 319,615 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,105 |
| The Americas Geography by Letter - C | 0 | - | 4.28 | 54,690 |
| The Americas Geography by Letter - A | 0 | - | 4.29 | 41,800 |
| The Americas Geography by Letter - T | 0 | - | 4.23 | 38,516 |
| The Americas Geography by Letter - P | 0 | - | 4.36 | 36,255 |
| The Americas Geography by Letter - M | 0 | - | 4.40 | 36,279 |
| U.S. Federal Holidays | 0 | - | 4.29 | 95,651 |
| United States Map Quiz | 0 | - | 4.98 | 3,901,602 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.18 | 700,671 |
| Canada A-Z | 0 | - | 4.70 | 30,576 |
