| Cantons of Switzerland | 0 | - | 4.98 | 51,098 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,106 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,298 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,090 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,630 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,816 |
| States of Germany | 0 | - | 4.96 | 152,147 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,943 |
| Regions of Italy | 0 | - | 4.92 | 75,692 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,010 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,759 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,618 |
| Departments of France | 0 | - | 4.93 | 53,944 |
| Famous Germans | 0 | - | 4.50 | 55,233 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,383 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,529 |
| Switzerland A-Z | 0 | - | 4.45 | 25,627 |
| England or Wales? | 0 | - | 4.94 | 45,634 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,048 |
| Official European Union Languages | 0 | - | 4.97 | 238,278 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,704 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,792 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,610 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,576 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,927 |
| Famous French People | 0 | - | 4.06 | 35,289 |
| The Mafia Quiz | 0 | - | 4.46 | 23,311 |
| History of The Netherlands | 0 | - | 4.46 | 17,422 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,642 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,788 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,722 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,375 |
| Celtic Nations | 0 | - | 4.69 | 46,917 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,612 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,739 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,459 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,175 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,228 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,277 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,314 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,627 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,534 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,854 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,226 |
| European Geography By Letter - S #1 | 0 | - | 4.54 | 100,436 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,141 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,013 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,052 |
| Regions of France | 0 | - | 4.75 | 120,555 |
| France A-Z | 0 | - | 4.16 | 38,185 |
| France Immigration by Country | 0 | - | 4.70 | 76,448 |
| German Groups of Things | 0 | - | 4.46 | 38,453 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,312 |
| Germany True or False? | 0 | - | 4.61 | 48,762 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,920 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,933 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,290 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,244 |
| Counties of England | 0 | - | 4.97 | 795,492 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,139 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,603 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,081 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,275 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,004 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,674 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,253 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,673 |
| Famous Nordic People | 0 | - | 4.34 | 20,083 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,613 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,191 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,911 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,149 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,520 |
| People on Money - England | 0 | - | 4.29 | 16,608 |
| Champions League Winners | 0 | - | 4.92 | 1,005,221 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,433 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,438 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,080 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,677 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,331 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,653 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,824 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,471 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,312 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,961 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,567 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,802 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,064 |
| European Geography A-Z | 0 | - | 4.29 | 49,221 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,868 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,490 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,869 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,643 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,565 |
| Word Chain - France | 0 | - | 4.38 | 42,758 |
| Germany Country Quiz | 0 | - | 4.82 | 157,693 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,983 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,958 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,888 |
| Italy Country Quiz | 0 | - | 4.82 | 123,286 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,195 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,880 |
| Italian Foods | 0 | - | 4.30 | 72,705 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,792 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,484 |
| Canary Islands | 0 | - | 4.62 | 17,470 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,829 |
| British Spellings | 0 | - | 4.06 | 99,422 |
| British Groups of Things | 0 | - | 4.25 | 82,849 |
| British Acronyms | 0 | - | 4.40 | 45,775 |
| UK Immigration by Country | 0 | - | 4.94 | 140,765 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,027 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,595 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,374 |
| Geography of Scotland | 0 | - | 4.63 | 21,604 |
| Famous Scottish People | 0 | - | 4.22 | 18,391 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,070 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,647 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,581 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,691 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,467 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,386 |
| Slavic Languages | 0 | - | 4.68 | 54,306 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,742 |
| French History Multiple Choice | 0 | - | 4.55 | 33,012 |
| History of Germany | 0 | - | 4.39 | 52,793 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,597 |
| Name that Greek Letter | 0 | - | 4.93 | 323,244 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,588 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,001 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,439 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,591 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,169 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,649 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,007 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,716 |
| Malta Country Quiz | 0 | - | 4.81 | 31,023 |
| Africa A-Z | 0 | - | 4.57 | 46,582 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,004 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,940 |
| Famous Russians | 0 | - | 4.16 | 23,828 |
| History of Russia Quiz | 0 | - | 4.49 | 31,899 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,710 |
| Russian History A-Z | 0 | - | 4.38 | 31,641 |
| Movies Set in France | 0 | - | 4.26 | 13,118 |
| French Inventions | 0 | - | 4.08 | 13,891 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,106 |
| History of Paris | 0 | - | 4.24 | 13,643 |
| Word Chain - Germany | 0 | - | 4.31 | 22,571 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,960 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,124 |
| The Trojan War | 0 | - | 4.83 | 39,672 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,651 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,705 |
| Famous Irish People | 0 | - | 4.05 | 45,988 |
| History of Italy | 0 | - | 4.55 | 31,955 |
| Word Chain - Italy | 0 | - | 4.07 | 23,155 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,700 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,091 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,459 |
| Roman Emperors | 0 | - | 4.95 | 119,772 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,635 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,193 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,332 |
| Name a Valid English City | 0 | - | 4.19 | 16,709 |
| London A-Z | 0 | - | 4.10 | 40,749 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,482 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,835 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,128 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,252 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,234 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,896 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,186 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,205 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,392 |
| Capitals of French Regions | 0 | - | 4.45 | 16,053 |
| Kings of France Quiz | 0 | - | 4.20 | 32,696 |
| Capitals of German States | 0 | - | 4.74 | 28,941 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,301 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,171 |
| Ancient Greek Words | 0 | - | 4.93 | 111,443 |
| British to American Food Translation | 0 | - | 3.38 | 51,954 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,425 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,885 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,543 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,091 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,649 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,380 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,846 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,321 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,978 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,804 |
| Middle East A-Z | 0 | - | 4.47 | 45,992 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,314,927 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,879 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,227 |
| Australian Capitals | 0 | - | 4.92 | 62,708 |
| Canada A-Z | 0 | - | 4.73 | 32,794 |
| European Physical Geography | 0 | - | 4.26 | 33,485 |
| Geography of Russia | 0 | - | 4.57 | 21,517 |
