| European Countries by First 2 Letters | 0 | - | 4.95 | 526,492 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,669 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,227 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,646 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,326 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,256 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,603 |
| Official European Union Languages | 0 | - | 4.97 | 236,935 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,727 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,366 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,010 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,528 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,814 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,556 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,577 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,248 |
| Celtic Nations | 0 | - | 4.69 | 46,819 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,005 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,636 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,297 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,961 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,002 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,884 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,924 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,043 |
| German Groups of Things | 0 | - | 4.46 | 38,309 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,056 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,478 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,452 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,014 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,193 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,014 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,374 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,357 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,263 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,296 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,845 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,106 |
| States of Germany | 0 | - | 4.96 | 150,181 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,063 |
| Regions of Italy | 0 | - | 4.92 | 74,780 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,642 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,855 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,288 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,425 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,235 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,401 |
| Champions League Winners | 0 | - | 4.92 | 996,854 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,408 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,122 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,488 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,723 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,651 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,275 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,165 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,543 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,519 |
| Political Figures by Last Name #1 | 0 | - | 4.55 | 67,460 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,403,090 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,894 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,397 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,138 |
| Name a Valid African Country | 0 | - | 4.98 | 152,986 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,621 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,413 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,310 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,967 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,304 |
| Departments of France | 0 | - | 4.93 | 52,872 |
| Word Chain - France | 0 | - | 4.38 | 42,586 |
| Italian Foods | 0 | - | 4.31 | 72,220 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,980 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,381 |
| British Groups of Things | 0 | - | 4.25 | 82,689 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,952 |
| England or Wales? | 0 | - | 4.94 | 45,343 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,561 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,524 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,317 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,280 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,762 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,606 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,091 |
| Biblical Names Still Popular Today | 0 | - | 4.27 | 51,123 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 486,608 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 709,716 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,193 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,455 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,605 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,020 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,191 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,126 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,862 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,130 |
| Slavic Languages | 0 | - | 4.67 | 54,000 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,160 |
| Name that Greek Letter | 0 | - | 4.94 | 321,763 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,436 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,259 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,926 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,840 |
| Most Valuable Brands | 0 | - | 4.28 | 135,076 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,382 |
| Hindu Countries | 0 | - | 4.86 | 49,606 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,607 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,973 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,636 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,876 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,176 |
| History of Russia Quiz | 0 | - | 4.49 | 31,798 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,580 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,934 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,102 |
| Word Chain - Germany | 0 | - | 4.31 | 22,479 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,810 |
| The Trojan War | 0 | - | 4.83 | 39,449 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,614 |
| History of Italy | 0 | - | 4.55 | 31,828 |
| Word Chain - Italy | 0 | - | 4.07 | 23,089 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,192 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,074 |
| Roman Emperors | 0 | - | 4.95 | 118,545 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,491 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,369 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,703 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,989 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,513 |
| Geography of Spain | 0 | - | 4.59 | 21,970 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,243 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,541 |
| Name a Valid English City | 0 | - | 4.19 | 16,633 |
| Middle Earth Geography | 0 | - | 4.56 | 39,547 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 80,860 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,542 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,160 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,215 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,696 |
| Last Names by Country of Origin | 0 | - | 4.64 | 155,929 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,813 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,885 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,984 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,083 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,426 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,929 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,875 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,738 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,244 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,945 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,694 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,652 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,035 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,333 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,717 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,614 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,514 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,169 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,627 |
| Capitals of French Regions | 0 | - | 4.45 | 15,988 |
| Regions of France | 0 | - | 4.78 | 119,326 |
| France Immigration by Country | 0 | - | 4.72 | 75,986 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,714 |
| Famous Germans | 0 | - | 4.50 | 54,641 |
| Capitals of German States | 0 | - | 4.74 | 28,816 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,106 |
| Germany True or False? | 0 | - | 4.61 | 48,539 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,481 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,513 |
| Ancient Greek Words | 0 | - | 4.92 | 110,735 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,568 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,852 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,706 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,063 |
| British to American Food Translation | 0 | - | 3.38 | 51,850 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,962 |
| Lord of the Rings Decoder | 0 | - | 4.58 | 42,282 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,183 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,387 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,333 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,339 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,160 |
| Most Popular Boy Names in the U.S. 2024 | 0 | - | 4.06 | 176,389 |
| NFL Football Last Names | 0 | - | 4.43 | 170,570 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 24,860 |
| Bible Quotes Quiz #1 | 0 | - | 4.41 | 61,305 |
| Bible Quotes Quiz #3 | 0 | - | 4.47 | 43,210 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,881 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,439 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,594 |
| Australian Capitals | 0 | - | 4.92 | 62,595 |
| Word Chain - Australia | 0 | - | 4.37 | 38,016 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,637 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,582 |
| European Physical Geography | 0 | - | 4.26 | 33,377 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,800 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,414 |
| Geography of Russia | 0 | - | 4.57 | 21,430 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,885 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,789 |
| History of Austria | 0 | - | 4.70 | 17,759 |
| Geography of the French Empire | 0 | - | 4.48 | 26,941 |
