| Netherlands Immigration by Country | 0 | - | 4.94 | 45,657 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,669 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,956 |
| States of Germany | 0 | - | 4.96 | 151,031 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,373 |
| Regions of Italy | 0 | - | 4.92 | 75,180 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,151 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,717 |
| Departments of France | 0 | - | 4.93 | 53,272 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,430 |
| England or Wales? | 0 | - | 4.94 | 45,481 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,842 |
| Official European Union Languages | 0 | - | 4.97 | 237,629 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,298 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,506 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,737 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,663 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,559 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,314 |
| Celtic Nations | 0 | - | 4.69 | 46,871 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,089 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,262 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,397 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,999 |
| Regions of France | 0 | - | 4.77 | 119,918 |
| France Immigration by Country | 0 | - | 4.72 | 76,180 |
| Famous Germans | 0 | - | 4.50 | 54,820 |
| German Groups of Things | 0 | - | 4.46 | 38,380 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,191 |
| Germany True or False? | 0 | - | 4.61 | 48,661 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,735 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,712 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,861 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,050 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,150 |
| Counties of England | 0 | - | 4.97 | 792,355 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,819 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,500 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,412 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,608 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,572 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,673 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,310 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,242 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,741 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,132 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,218 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,326 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,628 |
| Champions League Winners | 0 | - | 4.92 | 1,000,521 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,290 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,603 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,819 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,430 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,615 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,714 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,681 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,049 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,683 |
| Word Chain - France | 0 | - | 4.38 | 42,670 |
| Germany Country Quiz | 0 | - | 4.82 | 157,148 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,533 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,865 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,838 |
| Italy Country Quiz | 0 | - | 4.82 | 122,652 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,800 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,435 |
| Italian Foods | 0 | - | 4.31 | 72,438 |
| The Mafia Quiz | 0 | - | 4.46 | 23,251 |
| History of The Netherlands | 0 | - | 4.46 | 17,356 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,381 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,018 |
| Canary Islands | 0 | - | 4.61 | 17,436 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,405 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,360 |
| British Spellings | 0 | - | 4.06 | 99,350 |
| British Groups of Things | 0 | - | 4.25 | 82,776 |
| British Acronyms | 0 | - | 4.39 | 45,700 |
| UK Immigration by Country | 0 | - | 4.94 | 140,131 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,993 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,915 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,823 |
| Geography of Scotland | 0 | - | 4.63 | 21,543 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,210 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,504 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,626 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,266 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,811 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,108 |
| Slavic Languages | 0 | - | 4.68 | 54,148 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,628 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,528 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,588 |
| France A-Z | 0 | - | 4.16 | 38,111 |
| French History Multiple Choice | 0 | - | 4.55 | 32,942 |
| History of Germany | 0 | - | 4.39 | 52,720 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,490 |
| Name that Greek Letter | 0 | - | 4.93 | 322,498 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,519 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,642 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,336 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,537 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,821 |
| Switzerland A-Z | 0 | - | 4.45 | 25,576 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,560 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,967 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,573 |
| Malta Country Quiz | 0 | - | 4.81 | 30,926 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,346 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,559 |
| History of Russia Quiz | 0 | - | 4.49 | 31,841 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,639 |
| Famous French People | 0 | - | 4.12 | 28,128 |
| Movies Set in France | 0 | - | 4.26 | 13,096 |
| French Inventions | 0 | - | 4.08 | 13,875 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,860 |
| History of Paris | 0 | - | 4.24 | 13,629 |
| Word Chain - Germany | 0 | - | 4.31 | 22,521 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,736 |
| The Trojan War | 0 | - | 4.83 | 39,557 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,139 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,035 |
| History of Italy | 0 | - | 4.55 | 31,894 |
| Word Chain - Italy | 0 | - | 4.07 | 23,134 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,425 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,066 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,269 |
| Roman Emperors | 0 | - | 4.95 | 119,216 |
| Famous Nordic People | 0 | - | 4.34 | 19,973 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,565 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,091 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,299 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,498 |
| People on Money - England | 0 | - | 4.29 | 16,588 |
| Name a Valid English City | 0 | - | 4.19 | 16,670 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,500 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,128 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,666 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,119 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,099 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,977 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,436 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,306 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,023 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,803 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,435 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,595 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,191 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,126 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,765 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,074 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,114 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,794 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,229 |
| Capitals of French Regions | 0 | - | 4.45 | 16,016 |
| Kings of France Quiz | 0 | - | 4.20 | 32,626 |
| Capitals of German States | 0 | - | 4.74 | 28,890 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,196 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,322 |
| Ancient Greek Words | 0 | - | 4.93 | 111,083 |
| British to American Food Translation | 0 | - | 3.38 | 51,907 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,354 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,005 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,115 |
| Famous Scottish People | 0 | - | 4.22 | 18,353 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,379 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,404 |
| Australian Capitals | 0 | - | 4.92 | 62,656 |
| European Physical Geography | 0 | - | 4.26 | 33,420 |
| Geography of Russia | 0 | - | 4.57 | 21,476 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,850 |
| History of Austria | 0 | - | 4.70 | 17,797 |
| Austria Country Quiz | 0 | - | 4.57 | 59,528 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,471 |
| France Country Quiz | 0 | - | 4.70 | 134,462 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,029 |
| Geography of the French Empire | 0 | - | 4.45 | 26,998 |
| The French Revolution | 0 | - | 4.46 | 23,859 |
| France Multiple Choice | 0 | - | 4.38 | 40,679 |
| Tour de France Winners | 0 | - | 4.27 | 15,288 |
| History of France | 0 | - | 4.59 | 56,600 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Greece Country Quiz | 0 | - | 4.74 | 65,968 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,087 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,828 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,356 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,213 |
| Nordic Cities Map Quiz | 0 | - | 4.74 | 90,016 |
| The Vikings! | 0 | - | 4.46 | 28,283 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,576 |
| The Portuguese Empire | 0 | - | 4.58 | 12,027 |
| Spain Country Quiz | 0 | - | 4.45 | 128,025 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,127 |
| American to British Word Translation | 0 | - | 4.13 | 138,233 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,806 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,626 |
| Biggest British Empire Countries | 0 | - | 4.73 | 99,448 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,167 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,255 |
| Name the James Bond Movies | 0 | - | 4.56 | 158,040 |
