| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,947 |
| Official European Union Languages | 0 | - | 4.97 | 237,954 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,511 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,390 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,923 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,153 |
| Slavic Languages | 0 | - | 4.68 | 54,231 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,841 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,722 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,768 |
| History of Russia Quiz | 0 | - | 4.49 | 31,867 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,485 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,610 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,989 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,347 |
| Celtic Nations | 0 | - | 4.69 | 46,895 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,191 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,767 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,108 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,893 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,627 |
| Slavic Countries | 0 | - | 4.96 | 111,399 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,262 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,848 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,630 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,172 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,401 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,787 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 77,508 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,583 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,650 |
| States of Germany | 0 | - | 4.96 | 151,626 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,791 |
| Regions of Italy | 0 | - | 4.92 | 75,433 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,546 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,498 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,927 |
| Champions League Winners | 0 | - | 4.92 | 1,002,756 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,359 |
| Geography of Russia | 0 | - | 4.57 | 21,501 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,846 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,649 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,313 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,087 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,470 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,184 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,260 |
| Departments of France | 0 | - | 4.93 | 53,628 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,496 |
| England or Wales? | 0 | - | 4.94 | 45,559 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,563 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,537 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,640 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,427 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,192 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,275 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,669 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,035 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,773 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,711 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,694 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,605 |
| Name that Greek Letter | 0 | - | 4.93 | 322,918 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,562 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,400 |
| Languages of Spain | 0 | - | 4.36 | 23,267 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,692 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 218,810 |
| Famous Russians | 0 | - | 4.16 | 23,796 |
| Word Chain - Russia | 0 | - | 4.33 | 15,734 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,679 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,221 |
| The Trojan War | 0 | - | 4.83 | 39,623 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,414 |
| History of Italy | 0 | - | 4.55 | 31,925 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,576 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,367 |
| Roman Emperors | 0 | - | 4.95 | 119,553 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,600 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,145 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,477 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,518 |
| European Geography By Letter - A | 0 | - | 4.61 | 142,514 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 112,168 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,965 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,746 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,899 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,829 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,032 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,353 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,069 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,658 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,937 |
| Europe Map Quiz | 0 | - | 5.00 | 4,751,776 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,181 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,843 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,128 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,157 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,194 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 37,941 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 89,843 |
| Capitals of French Regions | 0 | - | 4.45 | 16,031 |
| Regions of France | 0 | - | 4.75 | 120,254 |
| France Immigration by Country | 0 | - | 4.70 | 76,338 |
| Famous Germans | 0 | - | 4.50 | 55,029 |
| German Groups of Things | 0 | - | 4.46 | 38,414 |
| Capitals of German States | 0 | - | 4.74 | 28,916 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,258 |
| Germany True or False? | 0 | - | 4.61 | 48,711 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,816 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,198 |
| Ancient Greek Words | 0 | - | 4.93 | 111,248 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,124 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,169 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,204 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,994 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,423 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,370 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,339 |
| Top World Languages | 0 | - | 4.92 | 819,154 |
| Africa Map Quiz | 0 | - | 5.00 | 2,113,209 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,132 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,752 |
| Australian Capitals | 0 | - | 4.92 | 62,684 |
| European Physical Geography | 0 | - | 4.26 | 33,449 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,093 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,891 |
| Ukraine Country Quiz | 0 | - | 4.42 | 47,580 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,289 |
| Romania Country Quiz | 0 | - | 4.63 | 53,657 |
| History of Austria | 0 | - | 4.70 | 17,826 |
| Geography of the French Empire | 0 | - | 4.45 | 27,014 |
| The French Revolution | 0 | - | 4.46 | 23,889 |
| France Multiple Choice | 0 | - | 4.38 | 40,691 |
| History of France | 0 | - | 4.59 | 56,757 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,453 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,776 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,952 |
| The Vikings! | 0 | - | 4.46 | 28,308 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,989 |
| The Portuguese Empire | 0 | - | 4.58 | 12,043 |
| American to British Word Translation | 0 | - | 4.14 | 138,620 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,522 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,557 |
| Champions League Top 4 | 0 | - | 4.77 | 135,489 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,445,506 |
| Asia Map Quiz | 0 | - | 4.99 | 913,208 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,880 |
| Countries by Official Language | 0 | - | 4.95 | 194,456 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,324 |
| Places in their Native Language #2 | 0 | - | 4.81 | 133,091 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,283 |
| Countries in their Native Language | 0 | - | 4.99 | 198,014 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,152 |
| Countries of Africa | 0 | - | 5.00 | 2,527,089 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,477 |
| African East Coast | 0 | - | 4.96 | 95,709 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,526 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,381 |
| Australia Map Quiz | 0 | - | 4.95 | 343,615 |
| United States Map Quiz | 0 | - | 4.98 | 4,151,138 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,521 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,534 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,318 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,718 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,981 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,341 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,526 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,172 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,042 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,712 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,339 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,623 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,587 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,867 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,633 |
| European Geography A-Z | 0 | - | 4.29 | 49,169 |
| Country Codes of Europe | 0 | - | 3.43 | 13,695 |
| The Only European Country ... | 0 | - | 4.91 | 215,710 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,600 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,281 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,939 |
| Austria... or Australia? | 0 | - | 4.68 | 104,193 |
| Famous French People | 0 | - | 4.12 | 32,701 |
| Presidents of France | 0 | - | 4.25 | 24,013 |
| Word Chain - France | 0 | - | 4.38 | 42,720 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,908 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,863 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,235 |
| Italian Foods | 0 | - | 4.30 | 72,578 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,217 |
| The Mafia Quiz | 0 | - | 4.46 | 23,281 |
| History of The Netherlands | 0 | - | 4.46 | 17,394 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,003 |
| Canary Islands | 0 | - | 4.62 | 17,454 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 67,003 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,540 |
| British Spellings | 0 | - | 4.06 | 99,388 |
| British Groups of Things | 0 | - | 4.25 | 82,817 |
| British Acronyms | 0 | - | 4.39 | 45,740 |
