| European Countries by First 2 Letters | 0 | - | 4.95 | 527,590 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,422 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,898 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,621 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,896 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,834 |
| Official European Union Languages | 0 | - | 4.97 | 237,586 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,273 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,401 |
| Australia A-Z | 0 | - | 4.54 | 49,868 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,776 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,127 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,731 |
| Germany A-Z | 0 | - | 4.56 | 62,447 |
| Italy A-Z | 0 | - | 4.49 | 57,978 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,530 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 107,921 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,658 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,546 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,304 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,944 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,092 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,302 |
| China A-Z | 0 | - | 4.55 | 66,946 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,437 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,180 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,312 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,074 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,178 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,315 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,180 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,082 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,727 |
| Mythology A-Z | 0 | - | 4.31 | 37,094 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,991 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,819 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,809 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,448 |
| Scotland A-Z | 0 | - | 4.73 | 41,136 |
| Champions League Winners | 0 | - | 4.92 | 1,000,313 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,144 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,730 |
| Name a Valid African Country | 0 | - | 4.98 | 153,361 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,378 |
| Celtic Nations | 0 | - | 4.69 | 46,869 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,599 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,555 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,997 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,641 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,638 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,649 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,988 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,475 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,830 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,273 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,113 |
| Departments of France | 0 | - | 4.93 | 53,235 |
| States of Germany | 0 | - | 4.96 | 150,984 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,321 |
| Regions of Italy | 0 | - | 4.92 | 75,138 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,424 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,078 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,109 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,690 |
| Lord of the Rings Decoder | 0 | - | 4.59 | 42,354 |
| Lord of the Rings Characters | 0 | - | 4.54 | 112,837 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,611 |
| England or Wales? | 0 | - | 4.94 | 45,473 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,171 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,733 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,651 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 119,054 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,430 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,653 |
| Brand Logos Quiz #1 | 0 | - | 4.82 | 2,410,515 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,488 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,366 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,285 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,725 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,094 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,385 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,314 |
| Name that Greek Letter | 0 | - | 4.93 | 322,454 |
| Italian Foods | 0 | - | 4.31 | 72,425 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,125 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,439 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,596 |
| #1 Hits of the 1980s | 0 | - | 4.86 | 147,888 |
| Biblical Names Still Popular Today | 0 | - | 4.28 | 51,263 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,605 |
| Hindu Countries | 0 | - | 4.86 | 49,802 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,198 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,092 |
| California A-Z | 0 | - | 4.49 | 28,741 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,880 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,532 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,100 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,499 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,625 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,249 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,780 |
| Slavic Languages | 0 | - | 4.68 | 54,141 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,220 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,147 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,819 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,058 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,784 |
| The Trojan War | 0 | - | 4.83 | 39,549 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,106 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,516 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,108 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,257 |
| Roman Emperors | 0 | - | 4.95 | 119,154 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,521 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,932 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,327 |
| Spain A-Z | 0 | - | 4.23 | 28,333 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,623 |
| Geography of Spain | 0 | - | 4.59 | 22,015 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,640 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,850 |
| Middle Earth Geography | 0 | - | 4.56 | 39,607 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 80,993 |
| Members of the Fellowship of the Ring | 0 | - | 4.73 | 45,617 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,569 |
| Imagine Lyrics | 0 | - | 4.53 | 43,134 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,717 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,466 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,356 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,458 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,835 |
| Countries that Beat China | 0 | - | 4.86 | 115,147 |
| Superhero Nicknames | 0 | - | 4.21 | 61,397 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 487,552 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 710,807 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,879 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,637 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 153,309 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 42,179 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 126,920 |
| Friends A-Z | 0 | - | 4.46 | 40,259 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,118 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,135 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,535 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,882 |
| History of Russia Quiz | 0 | - | 4.49 | 31,836 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,630 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,165 |
| Ancient Greek Words | 0 | - | 4.93 | 111,057 |
| History of Italy | 0 | - | 4.55 | 31,892 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,414 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,553 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,081 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,457 |
| Countries that Beat Egypt | 0 | - | 4.88 | 56,751 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,310 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,608 |
| New York City A-Z | 0 | - | 4.18 | 32,234 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,526,225 |
| Colleges by U.S. State - Multiple Choice | 0 | - | 4.57 | 22,974 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,659 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,113 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,094 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,967 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,431 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,287 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,019 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,801 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,430 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,585 |
| Europe Map Quiz | 0 | - | 5.00 | 4,744,206 |
| European Physical Geography | 0 | - | 4.26 | 33,417 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,113 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,753 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,063 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,102 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,789 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 27,859 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,213 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,607 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,840 |
| Geography of Russia | 0 | - | 4.57 | 21,473 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,177 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,438 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,845 |
| History of Austria | 0 | - | 4.70 | 17,794 |
| Capitals of French Regions | 0 | - | 4.45 | 16,015 |
| Regions of France | 0 | - | 4.77 | 119,881 |
| France Immigration by Country | 0 | - | 4.72 | 76,160 |
| Geography of the French Empire | 0 | - | 4.45 | 26,990 |
| The French Revolution | 0 | - | 4.46 | 23,856 |
| France Multiple Choice | 0 | - | 4.38 | 40,675 |
| History of France | 0 | - | 4.59 | 56,566 |
| Famous Germans | 0 | - | 4.50 | 54,809 |
| German Groups of Things | 0 | - | 4.46 | 38,373 |
| Capitals of German States | 0 | - | 4.74 | 28,887 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,187 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,422 |
| Germany True or False? | 0 | - | 4.61 | 48,652 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,699 |
