| States of Germany | 0 | - | 4.94 | 127,050 |
| Germany Immigration by Country | 0 | - | 4.91 | 71,312 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 27,128 |
| Germany True or False? | 0 | - | 4.60 | 45,097 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 491,816 |
| Italy Multiple Choice | 0 | - | 4.74 | 95,520 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 32,692 |
| Regions of Spain Quiz | 0 | - | 4.87 | 97,335 |
| Cantons of Switzerland | 0 | - | 4.97 | 41,483 |
| France Immigration by Country | 0 | - | 4.81 | 70,234 |
| Counties of Ireland | 0 | - | 4.90 | 163,407 |
| Regions of Italy | 0 | - | 4.89 | 62,035 |
| England or Wales? | 0 | - | 4.93 | 41,010 |
| Count to 10 in Europe: Pro | 0 | - | 4.81 | 61,902 |
| Official European Union Languages | 0 | - | 4.98 | 203,873 |
| European Countries in their Native Language | 0 | - | 4.99 | 146,032 |
| German Groups of Things | 0 | - | 4.43 | 36,369 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 392,556 |
| France Multiple Choice | 0 | - | 4.40 | 39,006 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 38,341 |
| Europe Geography Decoder | 0 | - | 4.88 | 64,261 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 39,299 |
| Famous Germans | 0 | - | 4.39 | 35,354 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,711 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 75,200 |
| Russia Multiple Choice | 0 | - | 4.56 | 38,504 |
| Add A Letter - Make a European City | 0 | - | 4.86 | 21,252 |
| Counties of England | 0 | - | 4.97 | 704,080 |
| Australia True or False | 0 | - | 4.90 | 52,237 |
| Celtic Nations | 0 | - | 4.76 | 45,035 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.89 | 80,782 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 288,885 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 122,495 |
| Capitals of German States | 0 | - | 4.70 | 27,423 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 20,592 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 22,196 |
| Geography of Germany | 0 | - | 4.37 | 15,820 |
| History of Germany Quiz | 0 | - | 4.35 | 40,507 |
| Provinces of the Netherlands | 0 | - | 4.65 | 34,178 |
| British Acronyms | 0 | - | 4.41 | 43,758 |
| Foods in a Full English Breakfast | 0 | - | 4.42 | 74,698 |
| Regions of France | 0 | - | 4.65 | 102,973 |
| Largest Islands of Greece | 0 | - | 4.58 | 41,015 |
| The Vikings! | 0 | - | 4.45 | 27,309 |
| The Portuguese Empire | 0 | - | 4.54 | 11,415 |
| Languages of the United Kingdom | 0 | - | 4.12 | 38,656 |
| Countries and Territories of the United Kingdom | 0 | - | 4.88 | 85,028 |
| Counties of England Map Quiz | 0 | - | 4.97 | 289,946 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 281,534 |
| Champions League Winners | 0 | - | 4.91 | 892,395 |
| Australia... or New Zealand? | 0 | - | 4.83 | 55,607 |
| Catholic Countries in Europe | 0 | - | 4.86 | 85,282 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,434 |
| Category Elimination - European Geography #3 | 0 | - | 4.87 | 67,757 |
| Federal Subjects of Russia | 0 | - | 4.95 | 116,810 |
| History of Austria | 0 | - | 4.69 | 16,574 |
| Regions of France Map Quiz | 0 | - | 4.96 | 129,268 |
| Geography of the French Empire | 0 | - | 4.49 | 25,626 |
| The French Revolution | 0 | - | 4.45 | 22,138 |
| History of France Quiz | 0 | - | 4.55 | 40,052 |
| States of Germany Map Quiz | 0 | - | 4.91 | 121,966 |
| Word Chain - Germany | 0 | - | 4.30 | 21,327 |
| History of Ireland Quiz | 0 | - | 4.44 | 19,180 |
| History of Italy | 0 | - | 4.49 | 30,034 |
| All Champions League Teams Ever | 0 | - | 4.90 | 108,008 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 204,870 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 250,706 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 145,963 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,993 |
| History of The Netherlands | 0 | - | 4.43 | 15,949 |
| Famous Nordic People | 0 | - | 4.41 | 10,734 |
| Spanish Immigration by Country | 0 | - | 4.63 | 52,520 |
| Canary Islands | 0 | - | 4.61 | 16,647 |
| Switzerland Immigration by Country | 0 | - | 4.76 | 22,936 |
| 100 Greatest Britons Quiz | 0 | - | 4.39 | 46,324 |
| British Spellings Quiz | 0 | - | 4.04 | 95,105 |
| British Groups of Things | 0 | - | 4.26 | 80,753 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,890 |
| English Monarchs in Order by First Letter | 0 | - | 4.44 | 24,293 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,883 |
| Word Scramble - European Countries | 0 | - | 4.76 | 126,060 |
| Top 20 Football Clubs in Europe | 0 | - | 4.50 | 90,326 |
| Slavic Languages | 0 | - | 4.64 | 49,417 |
| Word Chain - France | 0 | - | 4.37 | 40,437 |
| Famous Italians | 0 | - | 4.40 | 67,367 |
| Italian Foods | 0 | - | 4.25 | 65,493 |
| The Mafia Quiz | 0 | - | 4.47 | 21,821 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 10,354 |
| History of Spain Quiz | 0 | - | 4.33 | 19,737 |
| Languages of Spain | 0 | - | 4.36 | 21,602 |
| British Words Quiz #1 | 0 | - | 3.77 | 236,845 |
| British Words Quiz #2 | 0 | - | 4.00 | 107,341 |
| British Foods | 0 | - | 3.85 | 47,199 |
| British and American Word Differences | 0 | - | 2.66 | 44,519 |
| British Geography Quiz #2 | 0 | - | 4.28 | 26,500 |
| Bridges of London | 0 | - | 4.14 | 9,471 |
| British Sport Trivia | 0 | - | 4.31 | 19,396 |
| Famous Welsh People | 0 | - | 4.15 | 9,329 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 57,598 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 591,926 |
| Famous Spaniards Quiz | 0 | - | 4.22 | 10,966 |
| Invasions of Great Britain | 0 | - | 4.49 | 56,096 |
| Word Chain - United Kingdom | 0 | - | 4.04 | 28,204 |
| The British Royal Family - Modern Times | 0 | - | 4.12 | 20,754 |
| People on Money - England | 0 | - | 4.34 | 16,027 |
| Name a Valid English City | 0 | - | 4.16 | 15,493 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 258,525 |
| Japan Multiple Choice | 0 | - | 4.50 | 38,268 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 248,285 |
| Canada Multiple Choice Quiz | 0 | - | 4.49 | 31,951 |
| Top European Languages on a Map | 0 | - | 4.78 | 120,033 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,546 |
| Famous French People | 0 | - | 4.15 | 24,236 |
| Movies Set in France | 0 | - | 4.23 | 12,587 |
| French Inventions | 0 | - | 4.08 | 13,387 |
| History of Paris | 0 | - | 4.21 | 12,811 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 87,325 |
| Word Chain - Italy | 0 | - | 4.09 | 22,188 |
| Embarrassing Chapters in Italian History | 0 | - | 4.20 | 11,283 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 72,424 |
| Roman Emperors | 0 | - | 4.96 | 97,829 |
| Beatles Songs Quiz | 0 | - | 4.95 | 212,644 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 276,791 |
| Australian Capitals | 0 | - | 4.92 | 61,112 |
| European Geography By Letter - A | 0 | - | 4.63 | 125,752 |
| European Geography By Letter - B #1 | 0 | - | 4.75 | 104,807 |
| European Geography By Letter - C | 0 | - | 4.45 | 106,136 |
| European Geography By Letter - D | 0 | - | 4.51 | 100,588 |
| European Geography By Letter - L | 0 | - | 4.51 | 106,256 |
| European Geography By Letter - M | 0 | - | 4.55 | 115,523 |
| European Geography By Letter - P | 0 | - | 4.79 | 90,639 |
| European Geography By Letter - N | 0 | - | 4.42 | 94,387 |
| European Geography By Letter - V | 0 | - | 4.45 | 87,406 |
| Europe Map Quiz | 0 | - | 5.00 | 4,351,428 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 67,660 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 68,128 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 66,805 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 58,375 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 94,704 |
| European Geography By Letter - B #2 | 0 | - | 4.72 | 63,153 |
| German Loan Words | 0 | - | 4.28 | 130,495 |
| Olympian Gods Quiz | 0 | - | 4.96 | 461,064 |
| Name that Greek Letter | 0 | - | 4.94 | 298,533 |
| Ancient Greek Words | 0 | - | 4.91 | 99,524 |
| Capitals of Italian Regions | 0 | - | 4.53 | 26,394 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 404,482 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 49,685 |
| Sweden Immigration by Country | 0 | - | 4.66 | 43,030 |
| United Kingdom A-Z | 0 | - | 4.53 | 81,685 |
| Wives of King Henry VIII | 0 | - | 4.55 | 51,617 |
| Countries the UK Declared War On | 0 | - | 4.58 | 113,728 |
| Geography of the British Empire | 0 | - | 4.51 | 37,414 |
| Champions League Top 4 | 0 | - | 4.64 | 110,324 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,355,741 |
| Asia Map Quiz | 0 | - | 4.99 | 800,380 |
| Africa Map Quiz | 0 | - | 5.00 | 1,960,894 |
| Oceania Map Quiz | 0 | - | 4.98 | 576,680 |
| European Physical Geography | 0 | - | 4.20 | 32,134 |
| History of Russia Quiz | 0 | - | 4.48 | 30,125 |
| Geography of Russia | 0 | - | 4.54 | 20,358 |
| Slovakia... or Slovenia? | 0 | - | 4.72 | 40,050 |
| Kings of Spain Quiz | 0 | - | 4.12 | 12,980 |
| British Monopoly Board | 0 | - | 4.51 | 39,491 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 81,793 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,293,462 |
| North Korea... or South Korea? | 0 | - | 4.49 | 76,057 |
| Countries of Africa | 0 | - | 5.00 | 2,214,842 |
| African East Coast | 0 | - | 4.97 | 85,777 |
| Western Africa Map Quiz | 0 | - | 4.98 | 62,240 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 41,612 |
| Australia Map Quiz | 0 | - | 4.94 | 322,976 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,752 |
| United States Map Quiz | 0 | - | 4.98 | 3,933,342 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 196,969 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 87,207 |
| Countries That Use the Euro | 0 | - | 4.93 | 66,048 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 339,592 |
| European Geography By Letter - E | 0 | - | 4.21 | 106,668 |
| European Geography By Letter - F | 0 | - | 4.16 | 86,148 |
| European Geography By Letter - H | 0 | - | 4.31 | 89,767 |
| European Geography By Letter - G | 0 | - | 4.25 | 95,971 |
| European Geography By Letter - I | 0 | - | 4.10 | 89,749 |
| European Geography By Letter - K | 0 | - | 4.14 | 65,211 |
| European Geography By Letter - O | 0 | - | 4.28 | 58,397 |
| European Geography By Letter - R | 0 | - | 4.40 | 88,307 |
| European Geography by Letter - W | 0 | - | 4.22 | 78,816 |
| European Geography By Letter - T | 0 | - | 4.40 | 71,571 |
| Europe Geography Quiz #3 | 0 | - | 4.32 | 60,507 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 47,386 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 95,308 |
| European Geography A-Z | 0 | - | 4.37 | 45,932 |
| Country Codes of Europe | 0 | - | 3.36 | 12,856 |
| The Only European Country ... | 0 | - | 4.93 | 183,059 |
| Austria... or Australia? | 0 | - | 4.79 | 99,029 |
| Capitals of French Regions | 0 | - | 4.40 | 14,896 |
| Presidents of France | 0 | - | 4.23 | 20,592 |
| French Foods | 0 | - | 3.96 | 26,557 |
| Bundesliga Champions | 0 | - | 4.24 | 47,011 |
| All Bundesliga Teams Ever | 0 | - | 4.39 | 40,061 |
| Ancient Greek Trivia | 0 | - | 4.55 | 63,875 |
