| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,751 |
| Official European Union Languages | 0 | - | 4.97 | 239,840 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,672 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,582 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,568 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,975 |
| Slavic Languages | 0 | - | 4.67 | 54,705 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,326 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,061 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,864 |
| History of Russia Quiz | 0 | - | 4.47 | 32,007 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,988 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,581 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,510 |
| Celtic Nations | 0 | - | 4.61 | 47,102 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,039 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,829 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,955 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,209 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,810 |
| Slavic Countries | 0 | - | 4.96 | 112,397 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,700 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,456 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,848 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,104 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,751 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,296 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,987 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,789 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,902 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,000 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,482 |
| States of Germany | 0 | - | 4.95 | 154,570 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,709 |
| Regions of Italy | 0 | - | 4.92 | 77,113 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,817 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,356 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,777 |
| Champions League Winners | 0 | - | 4.92 | 1,016,418 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,755 |
| Geography of Russia | 0 | - | 4.57 | 21,604 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,063 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,932 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,967 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,975 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,757 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,596 |
| Departments of France | 0 | - | 4.93 | 55,184 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,749 |
| England or Wales? | 0 | - | 4.94 | 45,976 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,197 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,749 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,721 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,347 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,434 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,966 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,283 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,016 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,050 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,033 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,094 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,095 |
| Name that Greek Letter | 0 | - | 4.93 | 325,022 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,742 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,631 |
| Languages of Spain | 0 | - | 4.36 | 23,440 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,654 |
| Famous Russians | 0 | - | 4.16 | 23,915 |
| Word Chain - Russia | 0 | - | 4.33 | 15,798 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,876 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,827 |
| The Trojan War | 0 | - | 4.83 | 39,997 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,989 |
| History of Italy | 0 | - | 4.55 | 32,154 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,395 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,601 |
| Roman Emperors | 0 | - | 4.95 | 121,238 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,827 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,428 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,758 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,679 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,437 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,238 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,643 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,086 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,003 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,161 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,620 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,192 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,742 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,099 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,674 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,996 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,533 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,189 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,468 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,434 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,493 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,553 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,750 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,198 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,346 |
| Capitals of French Regions | 0 | - | 4.45 | 16,185 |
| Regions of France | 0 | - | 4.70 | 122,140 |
| France Immigration by Country | 0 | - | 4.70 | 76,945 |
| Famous Germans | 0 | - | 4.50 | 55,799 |
| German Groups of Things | 0 | - | 4.47 | 38,637 |
| Capitals of German States | 0 | - | 4.74 | 29,074 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,547 |
| Germany True or False? | 0 | - | 4.61 | 49,025 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,489 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,845 |
| Ancient Greek Words | 0 | - | 4.93 | 112,506 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,401 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,794 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,412 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,843 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,376 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,830 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,748 |
| Top World Languages | 0 | - | 4.92 | 830,092 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,247 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,581 |
| Australian Capitals | 0 | - | 4.92 | 62,836 |
| European Physical Geography | 0 | - | 4.26 | 33,599 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,465 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,136 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,994 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,791 |
| Romania Country Quiz | 0 | - | 4.63 | 54,143 |
| History of Austria | 0 | - | 4.70 | 17,976 |
| Geography of the French Empire | 0 | - | 4.45 | 27,220 |
| The French Revolution | 0 | - | 4.47 | 24,149 |
| France Multiple Choice | 0 | - | 4.39 | 40,854 |
| History of France | 0 | - | 4.61 | 57,633 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,560 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,892 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,516 |
| The Vikings! | 0 | - | 4.46 | 28,408 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,393 |
| The Portuguese Empire | 0 | - | 4.58 | 12,107 |
| American to British Word Translation | 0 | - | 4.14 | 139,714 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,383 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,821 |
| Champions League Top 4 | 0 | - | 4.78 | 139,166 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,653 |
| Asia Map Quiz | 0 | - | 4.99 | 925,420 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,417 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,007 |
| Countries by Official Language | 0 | - | 4.95 | 196,039 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,403 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,683 |
| Countries in their Native Language | 0 | - | 4.99 | 199,781 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,979 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,481 |
| Australia Map Quiz | 0 | - | 4.95 | 346,215 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,723 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,008 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,940 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,867 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,288 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,299 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,566 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,273 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,033 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,634 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,274 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,649 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,638 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,901 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,942 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,191 |
| European Geography A-Z | 0 | - | 4.29 | 49,488 |
| Country Codes of Europe | 0 | - | 3.45 | 13,834 |
| The Only European Country ... | 0 | - | 4.91 | 219,116 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,573 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,365 |
| Lithuania Country Quiz | 0 | - | 4.63 | 31,801 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,209 |
| Austria... or Australia? | 0 | - | 4.67 | 104,774 |
| Famous French People | 0 | - | 4.05 | 36,115 |
| Presidents of France | 0 | - | 4.25 | 24,343 |
| Word Chain - France | 0 | - | 4.38 | 42,943 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,245 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,050 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,898 |
| Italian Foods | 0 | - | 4.30 | 73,289 |
| Countries Italy Declared War On | 0 | - | 4.75 | 44,202 |
| The Mafia Quiz | 0 | - | 4.46 | 23,440 |
| History of The Netherlands | 0 | - | 4.46 | 17,556 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,119 |
| Canary Islands | 0 | - | 4.62 | 17,543 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 68,897 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,084 |
| British Spellings | 0 | - | 4.06 | 99,610 |
| British Groups of Things | 0 | - | 4.26 | 83,021 |
| British Acronyms | 0 | - | 4.40 | 45,945 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,113 |
| British Monopoly Board | 0 | - | 4.52 | 41,273 |
