| Name the English Monarchs | 0 | - | 4.91 | 501,181 |
| Monarchies of Europe | 0 | - | 4.90 | 97,890 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,531 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,841 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,771 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,629 |
| Monarchies of Asia | 0 | - | 4.97 | 70,934 |
| Europe Map Quiz | 0 | - | 5.00 | 4,753,617 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,882 |
| Countries Bordering France | 0 | - | 4.83 | 401,737 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,499 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,727 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,550 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,813 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,717 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,443 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,548 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,352 |
| Departments of France | 0 | - | 4.93 | 53,682 |
| Germany Country Quiz | 0 | - | 4.82 | 157,492 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,820 |
| Italy Country Quiz | 0 | - | 4.82 | 123,129 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,037 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,743 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,507 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,609 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,302 |
| England or Wales? | 0 | - | 4.94 | 45,579 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,970 |
| Official European Union Languages | 0 | - | 4.97 | 238,024 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,561 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,314 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,700 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,159 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,771 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,067 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,937 |
| Counties of Ireland | 0 | - | 4.92 | 194,484 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,732 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,640 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,350 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,535 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,540 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,993 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,193 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,652 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,604 |
| Kings of France Quiz | 0 | - | 4.20 | 32,673 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,060 |
| The Trojan War | 0 | - | 4.83 | 39,629 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,472 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,284 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,389 |
| Roman Emperors | 0 | - | 4.95 | 119,593 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,761 |
| British Monopoly Board | 0 | - | 4.52 | 41,133 |
| English Royal Consorts | 0 | - | 4.37 | 37,305 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,392 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,814 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,856 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,711 |
| The Only European Country ... | 0 | - | 4.91 | 215,834 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,659 |
| History of The Netherlands | 0 | - | 4.46 | 17,400 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,281 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,737 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,239 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,006 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,655 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,368 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,913 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,014 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,932 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,209 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,856 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,303 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,933 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,673 |
| Slavic Countries | 0 | - | 4.96 | 111,436 |
| France A-Z | 0 | - | 4.16 | 38,159 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,276 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,858 |
| Counties of England | 0 | - | 4.97 | 794,319 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,913 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,352 |
| Celtic Nations | 0 | - | 4.69 | 46,901 |
| European Geography By Letter - A | 0 | - | 4.52 | 144,177 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,446 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,205 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,956 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,040 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,008 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,144 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,478 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,172 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,737 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,046 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,285 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,903 |
| Famous Germans | 0 | - | 4.50 | 55,116 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,110 |
| Famous Irish People | 0 | - | 4.05 | 45,968 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,210 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,195 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,224 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,888 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,995 |
| British Geography A-Z | 0 | - | 4.42 | 19,487 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,704 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,482 |
| London A-Z | 0 | - | 4.10 | 40,737 |
| Champions League Winners | 0 | - | 4.92 | 1,003,242 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,107 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,632 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,189 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,833 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,452 |
| European Countries with One Border | 0 | - | 4.97 | 182,440 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,253 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,818 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,111 |
| Countries That Border Russia | 0 | - | 4.98 | 460,955 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,686 |
| Austria Country Quiz | 0 | - | 4.57 | 59,607 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,618 |
| France Country Quiz | 0 | - | 4.70 | 134,691 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,062 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,478 |
| States of Germany | 0 | - | 4.96 | 151,741 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,831 |
| Greece Country Quiz | 0 | - | 4.74 | 66,098 |
| Regions of Italy | 0 | - | 4.92 | 75,489 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,676 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,423 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,702 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,356 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,010 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,714 |
| Spain Country Quiz | 0 | - | 4.45 | 128,245 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,570 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,231 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,947 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,499 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,669 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,654 |
| Counties of Wales | 0 | - | 4.63 | 39,168 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,356 |
| Asian Country Superlatives | 0 | - | 4.85 | 80,749 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,016 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,662 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 72,781 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,143 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,491 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,661 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,310 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,163 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,829 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,433 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,691 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,949 |
| European Geography A-Z | 0 | - | 4.29 | 49,178 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,375 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,170 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,712 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,249 |
| Russia Country Quiz | 0 | - | 4.85 | 114,224 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,207 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,276 |
| Austria... or Australia? | 0 | - | 4.68 | 104,211 |
| Famous French People | 0 | - | 4.09 | 34,250 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,750 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,919 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,868 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,232 |
| The Mafia Quiz | 0 | - | 4.46 | 23,291 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,764 |
| Finland Country Quiz | 0 | - | 4.50 | 59,491 |
| Norway Country Quiz | 0 | - | 4.44 | 77,139 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,058 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,658 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,316 |
| British Acronyms | 0 | - | 4.39 | 45,744 |
| UK Immigration by Country | 0 | - | 4.94 | 140,598 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,326 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,148 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,646 |
| Medieval English History | 0 | - | 4.53 | 43,448 |
| Famous Scottish People | 0 | - | 4.22 | 18,385 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,640 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,789 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,611 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,291 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,043 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,450 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,543 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,020 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,640 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,462 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,255 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,277 |
