| European Countries by First 2 Letters | 0 | - | 4.95 | 530,684 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,666 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,343 |
| Official European Union Languages | 0 | - | 4.97 | 238,962 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,156 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,131 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,886 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,973 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,415 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,677 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,120 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,864 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,920 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,433 |
| Celtic Nations | 0 | - | 4.69 | 47,001 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,968 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,545 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,390 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,264 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,483 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,207 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,658 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,776 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,305 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,361 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,018 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,308 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,302 |
| German Groups of Things | 0 | - | 4.46 | 38,529 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,458 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,293 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,957 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,408 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,591 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 86,951 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,341 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,066 |
| States of Germany | 0 | - | 4.95 | 153,259 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,303 |
| Regions of Italy | 0 | - | 4.92 | 76,277 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,447 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,436 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,446 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,426 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,361 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,758 |
| Champions League Winners | 0 | - | 4.92 | 1,010,090 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,576 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,399 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 48,981 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,191 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,969 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,358 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,601 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,794 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,651 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,752 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,675 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,895 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,664 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,257 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,075 |
| Slavic Languages | 0 | - | 4.68 | 54,475 |
| Departments of France | 0 | - | 4.93 | 54,500 |
| Word Chain - France | 0 | - | 4.38 | 42,848 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,666 |
| Italian Foods | 0 | - | 4.30 | 72,953 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,620 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,517 |
| British Groups of Things | 0 | - | 4.25 | 82,915 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,059 |
| England or Wales? | 0 | - | 4.94 | 45,806 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,049 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,841 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,366 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,110 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,254 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,621 |
| Name a Valid African Country | 0 | - | 4.98 | 154,392 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 490,524 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 713,982 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,653 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,393 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,735 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,627 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,369 |
| History of Russia Quiz | 0 | - | 4.47 | 31,957 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,783 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,013 |
| Name that Greek Letter | 0 | - | 4.93 | 324,204 |
| History of Italy | 0 | - | 4.55 | 32,059 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,980 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,723 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,301 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,048 |
| Last Names by Country of Origin | 0 | - | 4.64 | 156,816 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,850 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,526 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,049 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,555 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,079 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,264 |
| Capitals of French Regions | 0 | - | 4.45 | 16,117 |
| Capitals of German States | 0 | - | 4.74 | 28,990 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,403 |
| Word Chain - Germany | 0 | - | 4.31 | 22,628 |
| The Trojan War | 0 | - | 4.83 | 39,804 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,275 |
| Word Chain - Italy | 0 | - | 4.07 | 23,186 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,660 |
| Roman Emperors | 0 | - | 4.95 | 120,424 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,528 |
| Geography of Spain | 0 | - | 4.59 | 22,109 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,362 |
| Name a Valid English City | 0 | - | 4.19 | 16,755 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,115 |
| Nicknames in U.S. History | 0 | - | 4.25 | 31,771 |
| Most Popular Boy Names in the U.S. 2024 | 0 | - | 4.06 | 177,757 |
| Oceania Map Quiz | 0 | - | 4.98 | 653,916 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,270 |
| Australian Capitals | 0 | - | 4.92 | 62,759 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,277 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,008 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,400 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,799 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,351 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,019 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,346 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,217 |
| European Geography By Letter - R | 0 | - | 4.42 | 94,027 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,297 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,854 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,899 |
| Regions of France | 0 | - | 4.72 | 121,277 |
| France Immigration by Country | 0 | - | 4.70 | 76,691 |
| Famous Germans | 0 | - | 4.50 | 55,540 |
| Germany True or False? | 0 | - | 4.61 | 48,895 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,151 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,977 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,826 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,503 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,998 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,344 |
| British to American Food Translation | 0 | - | 3.38 | 51,986 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,812 |
| Asia Map Quiz | 0 | - | 4.99 | 919,916 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,559 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,611 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,289 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,110 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,009 |
| NFL Football Last Names | 0 | - | 4.43 | 171,772 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,960 |
| Word Chain - Australia | 0 | - | 4.38 | 38,173 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,857 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,744 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,625 |
| European Physical Geography | 0 | - | 4.26 | 33,542 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,734 |
| Country Codes of Europe | 0 | - | 3.43 | 13,756 |
| The Only European Country ... | 0 | - | 4.91 | 217,460 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,622 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,308 |
| Geography of Russia | 0 | - | 4.57 | 21,555 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,023 |
| History of Austria | 0 | - | 4.70 | 17,909 |
| Presidents of France | 0 | - | 4.25 | 24,217 |
| Geography of the French Empire | 0 | - | 4.45 | 27,157 |
| The French Revolution | 0 | - | 4.47 | 24,066 |
| France Multiple Choice | 0 | - | 4.39 | 40,774 |
| History of France | 0 | - | 4.59 | 57,290 |
| Ancient Greek Words | 0 | - | 4.93 | 111,932 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,283 |
| The Vikings! | 0 | - | 4.46 | 28,370 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,218 |
| The Portuguese Empire | 0 | - | 4.58 | 12,086 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,069 |
| American to British Word Translation | 0 | - | 4.14 | 139,333 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,953 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,167 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,726 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,109 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,129 |
| Champions League Top 4 | 0 | - | 4.77 | 137,354 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,334 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,130 |
| African East Coast | 0 | - | 4.96 | 96,307 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,168 |
| World City Nicknames Quiz | 0 | - | 4.16 | 35,615 |
| Most Popular J Names in the U.S. | 0 | - | 3.60 | 193,023 |
| Most Popular Girl Names in the U.S. 2024 | 0 | - | 3.77 | 181,317 |
| Political Figures by Last Name #1 | 0 | - | 4.56 | 68,208 |
| Actors by Last Name #1 | 0 | - | 4.28 | 68,674 |
| Actresses by Last Name #1 | 0 | - | 4.26 | 63,793 |
| Actors by Last Name #2 | 0 | - | 4.02 | 59,091 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,078 |
| Australia Map Quiz | 0 | - | 4.95 | 345,237 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,646 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,612 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,850 |
