| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,590 |
| Official European Union Languages | 0 | - | 4.97 | 239,475 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,482 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,833 |
| States of Germany | 0 | - | 4.95 | 154,062 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,557 |
| Regions of Italy | 0 | - | 4.92 | 76,747 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,666 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,056 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,632 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,979 |
| Departments of France | 0 | - | 4.93 | 54,891 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,707 |
| England or Wales? | 0 | - | 4.94 | 45,903 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,319 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,284 |
| Slavic Languages | 0 | - | 4.67 | 54,623 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,234 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,005 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,657 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,832 |
| Counties of England | 0 | - | 4.97 | 801,443 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,267 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,475 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,929 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,475 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,901 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,243 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,073 |
| Regions of France | 0 | - | 4.70 | 121,791 |
| France Immigration by Country | 0 | - | 4.70 | 76,841 |
| Famous Germans | 0 | - | 4.50 | 55,691 |
| German Groups of Things | 0 | - | 4.47 | 38,603 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,630 |
| Germany True or False? | 0 | - | 4.61 | 48,971 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,347 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,357 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,234 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,646 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,383 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,979 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,666 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,770 |
| Champions League Winners | 0 | - | 4.92 | 1,013,604 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,912 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,687 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,970 |
| Celtic Nations | 0 | - | 4.61 | 47,068 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,580 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,633 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,313 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,735 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,993 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,385 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,576 |
| Famous Nordic People | 0 | - | 4.34 | 20,247 |
| The Vikings! | 0 | - | 4.46 | 28,394 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,028 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,394 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,705 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,282 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,812 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,699 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,802 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,203 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,505 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,484 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,016 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,881 |
| Famous French People | 0 | - | 4.07 | 36,015 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,540 |
| Word Chain - France | 0 | - | 4.38 | 42,902 |
| Germany Country Quiz | 0 | - | 4.82 | 158,604 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,926 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,179 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,009 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,040 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,889 |
| Italian Foods | 0 | - | 4.30 | 73,154 |
| The Mafia Quiz | 0 | - | 4.46 | 23,413 |
| History of The Netherlands | 0 | - | 4.46 | 17,530 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,340 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,642 |
| Canary Islands | 0 | - | 4.62 | 17,514 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,628 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,974 |
| British Spellings | 0 | - | 4.06 | 99,567 |
| British Groups of Things | 0 | - | 4.25 | 82,977 |
| British Acronyms | 0 | - | 4.40 | 45,904 |
| UK Immigration by Country | 0 | - | 4.94 | 141,498 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,088 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,704 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,490 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,059 |
| Geography of Scotland | 0 | - | 4.63 | 21,706 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,695 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,710 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,703 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,164 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,312 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,659 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,117 |
| France A-Z | 0 | - | 4.16 | 38,313 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,589 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,452 |
| History of Germany | 0 | - | 4.39 | 52,945 |
| The Trojan War | 0 | - | 4.83 | 39,937 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,832 |
| Name that Greek Letter | 0 | - | 4.93 | 324,717 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,710 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,709 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,499 |
| Roman Emperors | 0 | - | 4.95 | 120,929 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,984 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,592 |
| Most Common First Names in Spain | 0 | - | 4.32 | 54,886 |
| Languages of Spain | 0 | - | 4.36 | 23,401 |
| Switzerland A-Z | 0 | - | 4.45 | 25,744 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,913 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,077 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,016 |
| Malta Country Quiz | 0 | - | 4.81 | 31,205 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,882 |
| History of Russia Quiz | 0 | - | 4.47 | 31,987 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,836 |
| Movies Set in France | 0 | - | 4.26 | 13,144 |
| French Inventions | 0 | - | 4.10 | 13,918 |
| History of Paris | 0 | - | 4.24 | 13,670 |
| Kings of France Quiz | 0 | - | 4.20 | 32,882 |
| Word Chain - Germany | 0 | - | 4.31 | 22,660 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,087 |
| Ancient Greek Words | 0 | - | 4.93 | 112,277 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,185 |
| History of Italy | 0 | - | 4.55 | 32,114 |
| Word Chain - Italy | 0 | - | 4.07 | 23,206 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,220 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,150 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,785 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,633 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,388 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,389 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,567 |
| People on Money - England | 0 | - | 4.29 | 16,636 |
| Name a Valid English City | 0 | - | 4.19 | 16,799 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,927 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,590 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,636 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,691 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,073 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,042 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,079 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,741 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,081 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,865 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,380 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,595 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,291 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,459 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,459 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,111 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,409 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,373 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,212 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,438 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,659 |
| Capitals of French Regions | 0 | - | 4.45 | 16,157 |
| Capitals of German States | 0 | - | 4.74 | 29,041 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,506 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,149 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,420 |
| British to American Food Translation | 0 | - | 3.38 | 52,018 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,541 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,772 |
| Famous Scottish People | 0 | - | 4.22 | 18,428 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,337 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,067 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,241 |
| Top World Languages | 0 | - | 4.92 | 827,868 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,220 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,096 |
| Australian Capitals | 0 | - | 4.92 | 62,808 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,178 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,814 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,116 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,920 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,627 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,314 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,952 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,365 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,418 |
| European Physical Geography | 0 | - | 4.26 | 33,574 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,833 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,708 |
| European Geography A-Z | 0 | - | 4.29 | 49,441 |
| European Geographic Groups of Four | 0 | - | 4.54 | 19,714 |
| Geography of Russia | 0 | - | 4.57 | 21,577 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,081 |
| History of Austria | 0 | - | 4.70 | 17,958 |
| Austria Country Quiz | 0 | - | 4.57 | 59,979 |
| Austria... or Australia? | 0 | - | 4.68 | 104,673 |
