| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,922 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,974 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,602 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,351 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,096 |
| Famous Germans | 0 | - | 4.50 | 55,711 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,260 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,655 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,608 |
| Official European Union Languages | 0 | - | 4.97 | 239,521 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,508 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,392 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,712 |
| Famous Russians | 0 | - | 4.16 | 23,895 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,250 |
| History of Russia Quiz | 0 | - | 4.47 | 31,990 |
| Famous French People | 0 | - | 4.07 | 36,027 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,015 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,319 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,176 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,997 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,674 |
| Slavic Countries | 0 | - | 4.96 | 112,230 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,662 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,124 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,641 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,372 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,490 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,481 |
| Celtic Nations | 0 | - | 4.61 | 47,071 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,717 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,094 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,184 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,103 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,754 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,110 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,876 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,392 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,611 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,318 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,226 |
| Famous Irish People | 0 | - | 4.05 | 46,054 |
| Champions League Winners | 0 | - | 4.92 | 1,014,074 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,661 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,656 |
| Geography of Russia | 0 | - | 4.57 | 21,582 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,366 |
| States of Germany | 0 | - | 4.95 | 154,137 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,585 |
| Regions of Italy | 0 | - | 4.92 | 76,789 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,689 |
| Famous Nordic People | 0 | - | 4.34 | 20,263 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,636 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,110 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,639 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,296 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,816 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,901 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,823 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,133 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,929 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,638 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,326 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,962 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,379 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,434 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,718 |
| European Geography A-Z | 0 | - | 4.29 | 49,447 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,708 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,289 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,576 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,552 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,520 |
| Departments of France | 0 | - | 4.93 | 54,922 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,714 |
| History of The Netherlands | 0 | - | 4.46 | 17,531 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,066 |
| Famous Scottish People | 0 | - | 4.22 | 18,430 |
| England or Wales? | 0 | - | 4.94 | 45,911 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,756 |
| Famous Australians by Description | 0 | - | 4.23 | 28,104 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,708 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,179 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,386 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,782 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,829 |
| Slavic Languages | 0 | - | 4.67 | 54,632 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,882 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,181 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,924 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,004 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,988 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,026 |
| France A-Z | 0 | - | 4.16 | 38,316 |
| The Trojan War | 0 | - | 4.83 | 39,944 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,967 |
| Name that Greek Letter | 0 | - | 4.93 | 324,754 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,751 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,715 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,513 |
| Roman Emperors | 0 | - | 4.95 | 120,974 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,599 |
| Switzerland A-Z | 0 | - | 4.45 | 25,749 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,692 |
| Word Chain - Russia | 0 | - | 4.33 | 15,786 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,840 |
| Russian History A-Z | 0 | - | 4.35 | 32,135 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,729 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,219 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,194 |
| History of Italy | 0 | - | 4.55 | 32,117 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,238 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,791 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,401 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,569 |
| People on Money - England | 0 | - | 4.29 | 16,638 |
| London A-Z | 0 | - | 4.10 | 40,865 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,901 |
| Famous Chinese People | 0 | - | 4.09 | 11,912 |
| Africa A-Z | 0 | - | 4.57 | 46,748 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,959 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,453 |
| Europe Map Quiz | 0 | - | 5.00 | 4,782,279 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,463 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,123 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,415 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,384 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,149 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,270 |
| Capitals of French Regions | 0 | - | 4.45 | 16,159 |
| Regions of France | 0 | - | 4.70 | 121,846 |
| France Immigration by Country | 0 | - | 4.70 | 76,853 |
| German Groups of Things | 0 | - | 4.47 | 38,605 |
| Capitals of German States | 0 | - | 4.74 | 29,046 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,511 |
| Germany True or False? | 0 | - | 4.61 | 48,978 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,366 |
| Ancient Greek Words | 0 | - | 4.93 | 112,298 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,440 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,658 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,386 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,691 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,778 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,987 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,633 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,385 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,984 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,604 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,123 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,589 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,388 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,250 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,214 |
| Middle East A-Z | 0 | - | 4.47 | 46,215 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,117 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,323,746 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,308 |
| Australian Capitals | 0 | - | 4.92 | 62,811 |
| Canada A-Z | 0 | - | 4.73 | 32,942 |
| European Physical Geography | 0 | - | 4.26 | 33,581 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,405 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,088 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,943 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,718 |
| Romania Country Quiz | 0 | - | 4.63 | 54,055 |
| History of Austria | 0 | - | 4.70 | 17,962 |
| Geography of the French Empire | 0 | - | 4.45 | 27,201 |
| The French Revolution | 0 | - | 4.47 | 24,124 |
| France Multiple Choice | 0 | - | 4.39 | 40,821 |
| History of France | 0 | - | 4.61 | 57,506 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,548 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,494 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,246 |
| The Vikings! | 0 | - | 4.46 | 28,397 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,328 |
| The Portuguese Empire | 0 | - | 4.58 | 12,096 |
| American to British Word Translation | 0 | - | 4.14 | 139,575 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,031 |
| Champions League Top 4 | 0 | - | 4.77 | 138,460 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,390 |
| Asia Map Quiz | 0 | - | 4.99 | 923,605 |
| A Quiz About Islam | 0 | - | 4.32 | 48,580 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 35,103 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,622 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 158,287 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,325 |
| Australia Map Quiz | 0 | - | 4.95 | 345,871 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,840 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,271 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,597 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,628 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,171 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,422 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,574 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,859 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,426 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,870 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,842 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,825 |
| Country Codes of Europe | 0 | - | 3.43 | 13,794 |
