| Regions of Italy | 0 | - | 4.92 | 75,179 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,430 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,667 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,951 |
| Word Chain - France | 0 | - | 4.38 | 42,670 |
| States of Germany | 0 | - | 4.96 | 151,030 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,366 |
| Italian Foods | 0 | - | 4.31 | 72,437 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 45,392 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,148 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,716 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,711 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,680 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,045 |
| Departments of France | 0 | - | 4.93 | 53,270 |
| German Groups of Things | 0 | - | 4.46 | 38,379 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,859 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,819 |
| 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 | 237,628 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,297 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,498 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,627 |
| Word Chain - Germany | 0 | - | 4.31 | 22,521 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,519 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,299 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,736 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,859 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,736 |
| The Mafia Quiz | 0 | - | 4.46 | 23,251 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,269 |
| Roman Emperors | 0 | - | 4.95 | 119,208 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,663 |
| British Groups of Things | 0 | - | 4.25 | 82,775 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,992 |
| History of Italy | 0 | - | 4.55 | 31,894 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,425 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,314 |
| Celtic Nations | 0 | - | 4.69 | 46,871 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,126 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,763 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,282 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,073 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,112 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,088 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,255 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,383 |
| Regions of France | 0 | - | 4.77 | 119,916 |
| France Immigration by Country | 0 | - | 4.72 | 76,178 |
| Famous Germans | 0 | - | 4.50 | 54,820 |
| 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 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,049 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,535 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,150 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,559 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,967 |
| Counties of England | 0 | - | 4.97 | 792,343 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,500 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,405 |
| Capital Cities Chain | 0 | - | 4.84 | 82,237 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,195 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,717 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,608 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,571 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,673 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,306 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,239 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,736 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,130 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,066 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,082 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,827 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,193 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,325 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,624 |
| Name a Valid English City | 0 | - | 4.19 | 16,670 |
| Champions League Winners | 0 | - | 4.92 | 1,000,506 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,751 |
| Word Chain - Australia | 0 | - | 4.37 | 38,073 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,290 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,818 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,428 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,615 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,614 |
| Name a Valid African Country | 0 | - | 4.98 | 153,383 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,734 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,516 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,616 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,867 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,682 |
| Germany Country Quiz | 0 | - | 4.82 | 157,146 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,531 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,865 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,838 |
| Italy Country Quiz | 0 | - | 4.82 | 122,649 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,799 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,435 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,135 |
| History of The Netherlands | 0 | - | 4.46 | 17,355 |
| 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 | 115,404 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,358 |
| British Spellings | 0 | - | 4.06 | 99,350 |
| British to American Food Translation | 0 | - | 3.38 | 51,906 |
| British Acronyms | 0 | - | 4.39 | 45,700 |
| UK Immigration by Country | 0 | - | 4.94 | 140,118 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,904 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,818 |
| Geography of Scotland | 0 | - | 4.63 | 21,543 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,208 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,269 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,014 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,462 |
| 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 | 113,810 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,108 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,445 |
| Random Point on Land to European Country | 0 | - | 4.93 | 76,495 |
| Slavic Languages | 0 | - | 4.68 | 54,148 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,528 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,588 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,999 |
| 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 | 644,482 |
| Name that Greek Letter | 0 | - | 4.93 | 322,497 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,621 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,781 |
| Roman Names for Places | 0 | - | 4.62 | 58,044 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,633 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,336 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,328 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,819 |
| Switzerland A-Z | 0 | - | 4.45 | 25,575 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,573 |
| Malta Country Quiz | 0 | - | 4.81 | 30,926 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,000 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,345 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,112 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,110 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,559 |
| History of Russia Quiz | 0 | - | 4.49 | 31,840 |
| Word Chain - Russia | 0 | - | 4.33 | 15,720 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,639 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,233 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,151 |
| Famous French People | 0 | - | 4.12 | 28,128 |
| Movies Set in France | 0 | - | 4.26 | 13,096 |
| French Inventions | 0 | - | 4.08 | 13,875 |
| French Foods | 0 | - | 4.00 | 27,634 |
| History of Paris | 0 | - | 4.24 | 13,629 |
| The Trojan War | 0 | - | 4.83 | 39,555 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,132 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,033 |
| Italian Inventions | 0 | - | 3.81 | 18,424 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,389 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,558 |
| Famous Nordic People | 0 | - | 4.34 | 19,973 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,334 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,527 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,942 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,565 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,091 |
| Geography of Spain | 0 | - | 4.59 | 22,018 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,498 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,905 |
| People on Money - England | 0 | - | 4.29 | 16,588 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,500 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,128 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,470 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,897 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,008 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,664 |
| 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 | 4,745,130 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,794 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,227 |
| 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 | 498,316 |
| Ancient Greek Words | 0 | - | 4.93 | 111,082 |
