| European Countries by First 2 Letters | 0 | - | 4.95 | 531,695 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,890 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,282 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,121 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,427 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,419 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,570 |
| Official European Union Languages | 0 | - | 4.97 | 239,427 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,437 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,161 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,791 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,007 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,438 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,219 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,993 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,469 |
| Celtic Nations | 0 | - | 4.61 | 47,061 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,446 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,101 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,599 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,397 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,363 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,885 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,158 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,911 |
| German Groups of Things | 0 | - | 4.47 | 38,594 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,615 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,338 |
| Most Common First Names in Spain | 0 | - | 4.32 | 54,767 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,908 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,649 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,045 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,500 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,555 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,606 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,260 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,696 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,900 |
| States of Germany | 0 | - | 4.95 | 153,977 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,525 |
| Regions of Italy | 0 | - | 4.92 | 76,678 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,410 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,646 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,463 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,993 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,603 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,768 |
| Champions League Winners | 0 | - | 4.92 | 1,013,066 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,880 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,501 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,157 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,201 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,499 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,668 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,690 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,805 |
| Political Figures by Last Name #1 | 0 | - | 4.56 | 68,605 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,433,945 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,833 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,828 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,242 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,699 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,597 |
| Departments of France | 0 | - | 4.93 | 54,851 |
| Word Chain - France | 0 | - | 4.38 | 42,896 |
| Italian Foods | 0 | - | 4.30 | 73,124 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,557 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,699 |
| British Groups of Things | 0 | - | 4.25 | 82,975 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,085 |
| England or Wales? | 0 | - | 4.94 | 45,891 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,622 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,916 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,751 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,536 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,763 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,443 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,564 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,944 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,052 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,934 |
| Name a Valid African Country | 0 | - | 4.98 | 154,784 |
| Biblical Names Still Popular Today | 0 | - | 4.28 | 51,556 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 491,377 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 715,232 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,704 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,699 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,147 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,310 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,259 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,777 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,120 |
| Slavic Languages | 0 | - | 4.68 | 54,609 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,678 |
| Name that Greek Letter | 0 | - | 4.93 | 324,653 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,704 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,589 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,074 |
| Prime Ministers of the UK | 0 | - | 4.95 | 441,344 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,668 |
| Most Valuable Brands | 0 | - | 4.28 | 136,102 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,874 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,325 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,804 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,627 |
| History of Russia Quiz | 0 | - | 4.47 | 31,985 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,831 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,383 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,311 |
| Word Chain - Germany | 0 | - | 4.31 | 22,659 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,848 |
| The Trojan War | 0 | - | 4.83 | 39,930 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,665 |
| History of Italy | 0 | - | 4.55 | 32,107 |
| Word Chain - Italy | 0 | - | 4.07 | 23,205 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,191 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,476 |
| Roman Emperors | 0 | - | 4.95 | 120,876 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,781 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,724 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,378 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,916 |
| Geography of Spain | 0 | - | 4.59 | 22,149 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,384 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,760 |
| Name a Valid English City | 0 | - | 4.19 | 16,792 |
| Middle Earth Geography | 0 | - | 4.56 | 39,924 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 81,699 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,933 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,288 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,077 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,322 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,408 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,404 |
| Hindu Countries | 0 | - | 4.87 | 50,459 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,029 |
| Last Names by Country of Origin | 0 | - | 4.64 | 157,139 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,343 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,481 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,314 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,652 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,032 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,764 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,037 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,709 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,037 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,850 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,361 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,575 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,261 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,523 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,196 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 162,060 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,416 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,641 |
| Capitals of French Regions | 0 | - | 4.45 | 16,154 |
| Regions of France | 0 | - | 4.70 | 121,723 |
| France Immigration by Country | 0 | - | 4.70 | 76,827 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,086 |
| Famous Germans | 0 | - | 4.50 | 55,664 |
| Capitals of German States | 0 | - | 4.74 | 29,033 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,491 |
| Germany True or False? | 0 | - | 4.61 | 48,960 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,322 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,948 |
| Ancient Greek Words | 0 | - | 4.93 | 112,233 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,061 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,630 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,616 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,379 |
| British to American Food Translation | 0 | - | 3.38 | 52,017 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,431 |
| Lord of the Rings Decoder | 0 | - | 4.61 | 42,747 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,854 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,558 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,617 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,683 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,329 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,057 |
| Nicknames in U.S. History | 0 | - | 4.25 | 31,802 |
| Most Popular Boy Names in the U.S. 2024 | 0 | - | 4.06 | 177,980 |
| NFL Football Last Names | 0 | - | 4.43 | 171,907 |
| First Names of Recent World Leaders | 0 | - | 4.25 | 25,133 |
| Bible Quotes Quiz #1 | 0 | - | 4.42 | 62,074 |
| Bible Quotes Quiz #3 | 0 | - | 4.47 | 43,652 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,854 |
| Australian Capitals | 0 | - | 4.92 | 62,804 |
| Word Chain - Australia | 0 | - | 4.38 | 38,214 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,039 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,281 |
| European Physical Geography | 0 | - | 4.26 | 33,572 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,091 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,194 |
| Geography of Russia | 0 | - | 4.57 | 21,574 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,381 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,074 |
| History of Austria | 0 | - | 4.70 | 17,950 |
| Geography of the French Empire | 0 | - | 4.45 | 27,193 |
| The French Revolution | 0 | - | 4.47 | 24,108 |
| France Multiple Choice | 0 | - | 4.39 | 40,811 |
