| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,887 |
| Official European Union Languages | 0 | - | 4.97 | 240,457 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,878 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,248 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,028 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,562 |
| Slavic Languages | 0 | - | 4.67 | 54,802 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,412 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,120 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,055 |
| History of Russia Quiz | 0 | - | 4.47 | 32,031 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,048 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,695 |
| Celtic Nations | 0 | - | 4.61 | 47,130 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,172 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,335 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,756 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,433 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,955 |
| Slavic Countries | 0 | - | 4.96 | 112,566 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,773 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,531 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,023 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,277 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,830 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,567 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,542 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,251 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,932 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,291 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,232 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,625 |
| States of Germany | 0 | - | 4.95 | 155,042 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,855 |
| Regions of Italy | 0 | - | 4.92 | 77,315 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,961 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,676 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,954 |
| Champions League Winners | 0 | - | 4.92 | 1,018,592 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,841 |
| Geography of Russia | 0 | - | 4.57 | 21,627 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,098 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,879 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,492 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,455 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,392 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,866 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,671 |
| Departments of France | 0 | - | 4.93 | 55,461 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,795 |
| England or Wales? | 0 | - | 4.94 | 46,092 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,582 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,813 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,742 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,488 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,591 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,090 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,376 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,130 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,102 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,082 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,321 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,342 |
| Name that Greek Letter | 0 | - | 4.93 | 325,403 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,765 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,671 |
| Languages of Spain | 0 | - | 4.36 | 23,475 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 223,289 |
| Famous Russians | 0 | - | 4.16 | 23,935 |
| Word Chain - Russia | 0 | - | 4.33 | 15,810 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,911 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,928 |
| The Trojan War | 0 | - | 4.83 | 40,120 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,350 |
| History of Italy | 0 | - | 4.55 | 32,198 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,567 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,728 |
| Roman Emperors | 0 | - | 4.95 | 121,516 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,866 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,481 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 281,128 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,709 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,753 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,526 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,967 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,521 |
| European Geography By Letter - D | 0 | - | 4.49 | 119,061 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,464 |
| European Geography By Letter - M | 0 | - | 4.69 | 133,007 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,413 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,989 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,266 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,905 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,092 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,590 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,260 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,532 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,488 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,649 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,638 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,803 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,238 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,426 |
| Capitals of French Regions | 0 | - | 4.45 | 16,216 |
| Regions of France | 0 | - | 4.70 | 122,495 |
| France Immigration by Country | 0 | - | 4.70 | 77,039 |
| Famous Germans | 0 | - | 4.50 | 55,895 |
| German Groups of Things | 0 | - | 4.47 | 38,684 |
| Capitals of German States | 0 | - | 4.74 | 29,101 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,602 |
| Germany True or False? | 0 | - | 4.61 | 49,088 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,610 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,705 |
| Ancient Greek Words | 0 | - | 4.93 | 112,734 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,582 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,977 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,515 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,995 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,929 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 293,050 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,174 |
| Top World Languages | 0 | - | 4.92 | 832,136 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,788 |
| Australian Capitals | 0 | - | 4.92 | 62,885 |
| European Physical Geography | 0 | - | 4.26 | 33,623 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,543 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,181 |
| Ukraine Country Quiz | 0 | - | 4.43 | 48,070 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,860 |
| Romania Country Quiz | 0 | - | 4.63 | 54,231 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| Geography of the French Empire | 0 | - | 4.45 | 27,241 |
| The French Revolution | 0 | - | 4.47 | 24,175 |
| France Multiple Choice | 0 | - | 4.39 | 40,881 |
| History of France | 0 | - | 4.61 | 57,765 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,581 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,655 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,656 |
| The Vikings! | 0 | - | 4.46 | 28,432 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,452 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| American to British Word Translation | 0 | - | 4.14 | 139,870 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,500 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,861 |
| Champions League Top 4 | 0 | - | 4.78 | 139,734 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,706 |
| Asia Map Quiz | 0 | - | 4.99 | 927,194 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,462 |
| Officially Recognized Languages of India | 0 | - | 4.40 | 31,655 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,395 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,269 |
| Countries by Official Language | 0 | - | 4.95 | 196,327 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,713 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,084 |
| Countries in their Native Language | 0 | - | 4.99 | 200,038 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,216 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,645 |
| Australia Map Quiz | 0 | - | 4.95 | 346,615 |
| United States Map Quiz | 0 | - | 4.98 | 4,174,299 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,479 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 93,011 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,363 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,689 |
| European Geography By Letter - E | 0 | - | 4.23 | 121,937 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,847 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,510 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,301 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,834 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,484 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,828 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,763 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,961 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 52,070 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,599 |
| European Geography A-Z | 0 | - | 4.29 | 49,536 |
| Country Codes of Europe | 0 | - | 3.45 | 13,857 |
| The Only European Country ... | 0 | - | 4.91 | 219,757 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,920 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,376 |
| Lithuania Country Quiz | 0 | - | 4.63 | 31,850 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,258 |
| Austria... or Australia? | 0 | - | 4.67 | 104,874 |
| Famous French People | 0 | - | 4.05 | 36,190 |
| Presidents of France | 0 | - | 4.25 | 24,386 |
| Word Chain - France | 0 | - | 4.38 | 42,973 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,301 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Figures from Greek Mythology | 0 | - | 4.92 | 194,414 |
| Italian Foods | 0 | - | 4.30 | 73,428 |
| Countries Italy Declared War On | 0 | - | 4.74 | 49,784 |
| The Mafia Quiz | 0 | - | 4.46 | 23,455 |
| History of The Netherlands | 0 | - | 4.46 | 17,580 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,139 |
| Canary Islands | 0 | - | 4.62 | 17,551 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,186 |
| British Spellings | 0 | - | 4.06 | 99,641 |
| British Groups of Things | 0 | - | 4.26 | 83,050 |
| British Acronyms | 0 | - | 4.40 | 45,993 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,135 |
| British Monopoly Board | 0 | - | 4.52 | 41,300 |
