| Cantons of Switzerland | 0 | - | 4.98 | 51,673 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,099 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,946 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,614 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,388 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,219 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,828 |
| States of Germany | 0 | - | 4.95 | 154,208 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,610 |
| Regions of Italy | 0 | - | 4.92 | 76,896 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,724 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,146 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,664 |
| Departments of France | 0 | - | 4.93 | 54,959 |
| Famous Germans | 0 | - | 4.50 | 55,729 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,281 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,719 |
| Switzerland A-Z | 0 | - | 4.45 | 25,755 |
| England or Wales? | 0 | - | 4.94 | 45,923 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,631 |
| Official European Union Languages | 0 | - | 4.97 | 239,577 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,532 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,478 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,304 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,720 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,261 |
| Famous French People | 0 | - | 4.07 | 36,042 |
| The Mafia Quiz | 0 | - | 4.46 | 23,423 |
| History of The Netherlands | 0 | - | 4.46 | 17,539 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,009 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,024 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,074 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,485 |
| Celtic Nations | 0 | - | 4.61 | 47,075 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,737 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,109 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,284 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,116 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,767 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,134 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,884 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,404 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,619 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,337 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,236 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,419 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,297 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,130 |
| Regions of France | 0 | - | 4.70 | 121,882 |
| France A-Z | 0 | - | 4.16 | 38,322 |
| France Immigration by Country | 0 | - | 4.70 | 76,871 |
| German Groups of Things | 0 | - | 4.47 | 38,615 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,656 |
| Germany True or False? | 0 | - | 4.61 | 48,986 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,385 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,388 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,677 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,390 |
| Counties of England | 0 | - | 4.97 | 801,947 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,714 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,786 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,751 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,694 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,673 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,192 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,474 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,664 |
| Famous Nordic People | 0 | - | 4.34 | 20,275 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,640 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,149 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,443 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,805 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,571 |
| People on Money - England | 0 | - | 4.29 | 16,642 |
| Champions League Winners | 0 | - | 4.92 | 1,014,521 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,911 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,717 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,343 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,817 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,835 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,147 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,940 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,647 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,335 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,969 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,387 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,438 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,723 |
| European Geography A-Z | 0 | - | 4.29 | 49,452 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,407 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,650 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,624 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,896 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,655 |
| Word Chain - France | 0 | - | 4.38 | 42,910 |
| Germany Country Quiz | 0 | - | 4.82 | 158,690 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,973 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,200 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,022 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,124 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,930 |
| Italian Foods | 0 | - | 4.30 | 73,187 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,389 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,720 |
| Canary Islands | 0 | - | 4.62 | 17,514 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,702 |
| British Spellings | 0 | - | 4.06 | 99,581 |
| British Groups of Things | 0 | - | 4.25 | 82,986 |
| British Acronyms | 0 | - | 4.40 | 45,916 |
| UK Immigration by Country | 0 | - | 4.94 | 141,560 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,095 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,802 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,584 |
| Geography of Scotland | 0 | - | 4.63 | 21,718 |
| Famous Scottish People | 0 | - | 4.22 | 18,433 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,825 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,711 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,204 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 117,436 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,800 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,848 |
| Slavic Languages | 0 | - | 4.68 | 54,646 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,035 |
| French History Multiple Choice | 0 | - | 4.55 | 33,200 |
| History of Germany | 0 | - | 4.39 | 52,963 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,146 |
| Name that Greek Letter | 0 | - | 4.93 | 324,806 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,721 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,566 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,603 |
| Most Common First Names in Spain | 0 | - | 4.32 | 55,083 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,313 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,788 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,939 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,078 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,041 |
| Malta Country Quiz | 0 | - | 4.81 | 31,215 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,720 |
| Famous Russians | 0 | - | 4.16 | 23,900 |
| History of Russia Quiz | 0 | - | 4.47 | 31,993 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,842 |
| Russian History A-Z | 0 | - | 4.35 | 32,148 |
| Movies Set in France | 0 | - | 4.26 | 13,145 |
| French Inventions | 0 | - | 4.10 | 13,922 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,633 |
| History of Paris | 0 | - | 4.24 | 13,674 |
| Word Chain - Germany | 0 | - | 4.31 | 22,670 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,491 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,225 |
| The Trojan War | 0 | - | 4.83 | 39,948 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,795 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,288 |
| Famous Irish People | 0 | - | 4.05 | 46,057 |
| History of Italy | 0 | - | 4.55 | 32,122 |
| Word Chain - Italy | 0 | - | 4.07 | 23,210 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,265 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,157 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,531 |
| Roman Emperors | 0 | - | 4.95 | 121,016 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,796 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,405 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,392 |
| Name a Valid English City | 0 | - | 4.19 | 16,805 |
| London A-Z | 0 | - | 4.10 | 40,868 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,919 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,457 |
| Africa A-Z | 0 | - | 4.57 | 46,752 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,162 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,474 |
| Europe Map Quiz | 0 | - | 5.00 | 4,783,297 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,470 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,136 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,420 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,391 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,479 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,693 |
| Capitals of French Regions | 0 | - | 4.45 | 16,161 |
| Kings of France Quiz | 0 | - | 4.20 | 32,897 |
| Capitals of German States | 0 | - | 4.74 | 29,054 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,522 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,303 |
| Ancient Greek Words | 0 | - | 4.93 | 112,321 |
| British to American Food Translation | 0 | - | 3.38 | 52,025 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,553 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,058 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,673 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,392 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,990 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,609 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,140 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,602 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,259 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,225 |
| Middle East A-Z | 0 | - | 4.47 | 46,220 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,324,125 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,528 |
| Australian Capitals | 0 | - | 4.92 | 62,815 |
| Canada A-Z | 0 | - | 4.73 | 32,948 |
| European Physical Geography | 0 | - | 4.26 | 33,585 |
| Geography of Russia | 0 | - | 4.57 | 21,585 |
