| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,648 |
| Official European Union Languages | 0 | - | 4.97 | 237,082 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,844 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,638 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,835 |
| States of Germany | 0 | - | 4.96 | 150,311 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,114 |
| Regions of Italy | 0 | - | 4.92 | 74,838 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,901 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,485 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,393 |
| Departments of France | 0 | - | 4.93 | 52,935 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,525 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,389 |
| England or Wales? | 0 | - | 4.94 | 45,364 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,534 |
| Slavic Languages | 0 | - | 4.67 | 54,027 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,574 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,803 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,786 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,589 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,230 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,608 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,404 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,693 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,254 |
| Celtic Nations | 0 | - | 4.69 | 46,830 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,917 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,083 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,229 |
| Regions of France | 0 | - | 4.78 | 119,402 |
| France Immigration by Country | 0 | - | 4.72 | 76,016 |
| Famous Germans | 0 | - | 4.50 | 54,666 |
| German Groups of Things | 0 | - | 4.46 | 38,322 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,072 |
| Germany True or False? | 0 | - | 4.61 | 48,556 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,611 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,876 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,082 |
| Counties of England | 0 | - | 4.97 | 789,947 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,058 |
| The UK for Americans - True or False | 0 | - | 4.44 | 58,428 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,525 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,768 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,270 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,423 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,302 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,376 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,919 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,305 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,319 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,834 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,401 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,106 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,241 |
| Champions League Winners | 0 | - | 4.92 | 997,390 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,189 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,581 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,731 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,738 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,277 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,558 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,778 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,433 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,350 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,334 |
| Word Chain - France | 0 | - | 4.38 | 42,599 |
| Germany Country Quiz | 0 | - | 4.82 | 156,709 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,267 |
| Italy Country Quiz | 0 | - | 4.82 | 122,333 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,523 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,193 |
| Italian Foods | 0 | - | 4.31 | 72,255 |
| The Mafia Quiz | 0 | - | 4.46 | 23,213 |
| History of The Netherlands | 0 | - | 4.46 | 17,326 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,153 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,738 |
| Canary Islands | 0 | - | 4.61 | 17,412 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,067 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,206 |
| British Spellings | 0 | - | 4.07 | 99,270 |
| British Groups of Things | 0 | - | 4.25 | 82,710 |
| British Acronyms | 0 | - | 4.39 | 45,641 |
| UK Immigration by Country | 0 | - | 4.94 | 139,786 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,965 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,368 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,457 |
| Geography of Scotland | 0 | - | 4.63 | 21,498 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,667 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,462 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,608 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,046 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,240 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,888 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,542 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,437 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,560 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,969 |
| France A-Z | 0 | - | 4.16 | 38,077 |
| French History Multiple Choice | 0 | - | 4.55 | 32,892 |
| History of Germany | 0 | - | 4.39 | 52,645 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,595 |
| Name that Greek Letter | 0 | - | 4.94 | 321,846 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,468 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,446 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,268 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,482 |
| Languages of Spain | 0 | - | 4.36 | 23,162 |
| Switzerland A-Z | 0 | - | 4.45 | 25,523 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,469 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,929 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,478 |
| Malta Country Quiz | 0 | - | 4.81 | 30,863 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,687 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,037 |
| History of Russia Quiz | 0 | - | 4.49 | 31,803 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,588 |
| Famous French People | 0 | - | 4.12 | 27,993 |
| Movies Set in France | 0 | - | 4.26 | 13,082 |
| French Inventions | 0 | - | 4.08 | 13,866 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,658 |
| History of Paris | 0 | - | 4.24 | 13,619 |
| Word Chain - Germany | 0 | - | 4.31 | 22,484 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,524 |
| The Trojan War | 0 | - | 4.83 | 39,467 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,707 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,483 |
| History of Italy | 0 | - | 4.55 | 31,842 |
| Word Chain - Italy | 0 | - | 4.07 | 23,098 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,232 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,049 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,116 |
| Roman Emperors | 0 | - | 4.95 | 118,616 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,497 |
| Famous Nordic People | 0 | - | 4.34 | 19,882 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,549 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,003 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,245 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,479 |
| People on Money - England | 0 | - | 4.29 | 16,570 |
| Name a Valid English City | 0 | - | 4.19 | 16,639 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,366 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,264 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,440 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,465 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,962 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,915 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,768 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,276 |
| European Geography By Letter - M | 0 | - | 4.61 | 129,006 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,722 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,677 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,058 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,372 |
| Europe Map Quiz | 0 | - | 5.00 | 4,734,429 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,020 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,651 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,977 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,016 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,639 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,198 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,657 |
| Capitals of French Regions | 0 | - | 4.45 | 15,992 |
| Kings of France Quiz | 0 | - | 4.20 | 32,576 |
| Capitals of German States | 0 | - | 4.74 | 28,820 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,113 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,865 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,430 |
| Ancient Greek Words | 0 | - | 4.92 | 110,794 |
| British to American Food Translation | 0 | - | 3.38 | 51,865 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,294 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,298 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,444 |
| Famous Scottish People | 0 | - | 4.22 | 18,336 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,364 |
| Top World Languages | 0 | - | 4.92 | 813,965 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,684 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,051 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,020 |
| Australian Capitals | 0 | - | 4.92 | 62,599 |
| European Physical Geography | 0 | - | 4.26 | 33,382 |
| Geography of Russia | 0 | - | 4.57 | 21,438 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,799 |
| History of Austria | 0 | - | 4.70 | 17,765 |
| Austria Country Quiz | 0 | - | 4.57 | 59,396 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,301 |
| France Country Quiz | 0 | - | 4.70 | 133,944 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,942 |
| Geography of the French Empire | 0 | - | 4.45 | 26,949 |
| The French Revolution | 0 | - | 4.46 | 23,804 |
| France Multiple Choice | 0 | - | 4.38 | 40,645 |
| Tour de France Winners | 0 | - | 4.27 | 15,236 |
| History of France | 0 | - | 4.59 | 56,195 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,393 |
| Greece Country Quiz | 0 | - | 4.74 | 65,812 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,922 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,664 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,519 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,273 |
| Netherlands Country Quiz | 0 | - | 4.50 | 80,033 |
