| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,118 |
| Official European Union Languages | 0 | - | 4.97 | 238,494 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,835 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,489 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,127 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,163 |
| Slavic Languages | 0 | - | 4.68 | 54,356 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,982 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,832 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,074 |
| History of Russia Quiz | 0 | - | 4.47 | 31,917 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,025 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,728 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,145 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,385 |
| Celtic Nations | 0 | - | 4.69 | 46,941 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,367 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,472 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,814 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,275 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,182 |
| Slavic Countries | 0 | - | 4.96 | 111,651 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,349 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,003 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,910 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,425 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,517 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,123 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,529 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,973 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,890 |
| States of Germany | 0 | - | 4.96 | 152,551 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,028 |
| Regions of Italy | 0 | - | 4.92 | 75,860 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,146 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,930 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,200 |
| Champions League Winners | 0 | - | 4.92 | 1,006,613 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,490 |
| Geography of Russia | 0 | - | 4.57 | 21,527 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,892 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,694 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,234 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,803 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,110 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,335 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,342 |
| Departments of France | 0 | - | 4.93 | 54,089 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,545 |
| England or Wales? | 0 | - | 4.94 | 45,686 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,335 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,599 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,654 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,694 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,949 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,437 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,841 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,216 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,871 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,803 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,766 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,372 |
| Name that Greek Letter | 0 | - | 4.93 | 323,432 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,610 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,464 |
| Languages of Spain | 0 | - | 4.36 | 23,315 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,197 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,962 |
| Famous Russians | 0 | - | 4.16 | 23,840 |
| Word Chain - Russia | 0 | - | 4.33 | 15,751 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,726 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,391 |
| The Trojan War | 0 | - | 4.83 | 39,723 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,832 |
| History of Italy | 0 | - | 4.55 | 31,973 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,777 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,523 |
| Roman Emperors | 0 | - | 4.95 | 120,029 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,659 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,233 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 279,138 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,552 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,229 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 118,795 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,954 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,607 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,506 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,638 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,536 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,837 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,693 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,004 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,426 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,654 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,271 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,935 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,220 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,232 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,594 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,007 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,002 |
| Capitals of French Regions | 0 | - | 4.45 | 16,068 |
| Regions of France | 0 | - | 4.72 | 120,767 |
| France Immigration by Country | 0 | - | 4.70 | 76,508 |
| Famous Germans | 0 | - | 4.50 | 55,291 |
| German Groups of Things | 0 | - | 4.46 | 38,474 |
| Capitals of German States | 0 | - | 4.74 | 28,953 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,332 |
| Germany True or False? | 0 | - | 4.61 | 48,797 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,013 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,786 |
| Ancient Greek Words | 0 | - | 4.93 | 111,592 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,489 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,353 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,266 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,240 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,245 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,704 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,003 |
| Top World Languages | 0 | - | 4.92 | 822,055 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,759 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,148 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,233 |
| Australian Capitals | 0 | - | 4.92 | 62,721 |
| European Physical Geography | 0 | - | 4.26 | 33,509 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,214 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,960 |
| Ukraine Country Quiz | 0 | - | 4.42 | 47,702 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,432 |
| Romania Country Quiz | 0 | - | 4.63 | 53,775 |
| History of Austria | 0 | - | 4.70 | 17,861 |
| Geography of the French Empire | 0 | - | 4.45 | 27,059 |
| The French Revolution | 0 | - | 4.47 | 23,929 |
| France Multiple Choice | 0 | - | 4.39 | 40,741 |
| History of France | 0 | - | 4.59 | 56,973 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,082 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,129 |
| The Vikings! | 0 | - | 4.46 | 28,342 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,124 |
| The Portuguese Empire | 0 | - | 4.58 | 12,064 |
| American to British Word Translation | 0 | - | 4.14 | 139,046 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,033 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,661 |
| Champions League Top 4 | 0 | - | 4.77 | 136,423 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,186 |
| Asia Map Quiz | 0 | - | 4.99 | 916,682 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,054 |
| Countries by Official Language | 0 | - | 4.95 | 194,910 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,900 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,920 |
| Countries in their Native Language | 0 | - | 4.99 | 198,436 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,768 |
| Countries of Africa | 0 | - | 5.00 | 2,536,647 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,816 |
| African East Coast | 0 | - | 4.96 | 96,053 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,867 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,687 |
| Australia Map Quiz | 0 | - | 4.95 | 344,591 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,293 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,230 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,648 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,012 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,431 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,603 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,912 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,045 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,716 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,531 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,168 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,734 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,925 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,670 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,186 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,225 |
| European Geography A-Z | 0 | - | 4.29 | 49,264 |
| Country Codes of Europe | 0 | - | 3.43 | 13,719 |
| The Only European Country ... | 0 | - | 4.91 | 216,595 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,109 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,302 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,031 |
| Austria... or Australia? | 0 | - | 4.68 | 104,339 |
| Famous French People | 0 | - | 4.06 | 35,566 |
| Presidents of France | 0 | - | 4.25 | 24,133 |
| Word Chain - France | 0 | - | 4.38 | 42,778 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,993 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,913 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,934 |
| Italian Foods | 0 | - | 4.30 | 72,777 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,326 |
| The Mafia Quiz | 0 | - | 4.46 | 23,321 |
| History of The Netherlands | 0 | - | 4.46 | 17,431 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,041 |
| Canary Islands | 0 | - | 4.62 | 17,480 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 67,432 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,698 |
| British Spellings | 0 | - | 4.06 | 99,448 |
| British Groups of Things | 0 | - | 4.25 | 82,863 |
| British Acronyms | 0 | - | 4.40 | 45,799 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,035 |
| British Monopoly Board | 0 | - | 4.52 | 41,166 |
