| Regions of Italy | 0 | - | 4.92 | 76,513 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,666 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,284 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,396 |
| States of Germany | 0 | - | 4.95 | 153,730 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,424 |
| Italian Foods | 0 | - | 4.30 | 73,053 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,564 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,795 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,522 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,076 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,753 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,914 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,138 |
| Departments of France | 0 | - | 4.93 | 54,712 |
| German Groups of Things | 0 | - | 4.47 | 38,567 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,982 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,567 |
| England or Wales? | 0 | - | 4.94 | 45,851 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,470 |
| Official European Union Languages | 0 | - | 4.97 | 239,238 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,315 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,808 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,975 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,694 |
| Word Chain - Italy | 0 | - | 4.07 | 23,201 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,180 |
| Word Chain - France | 0 | - | 4.38 | 42,881 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,490 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,353 |
| The Mafia Quiz | 0 | - | 4.46 | 23,397 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,358 |
| Roman Emperors | 0 | - | 4.95 | 120,690 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,967 |
| British Groups of Things | 0 | - | 4.25 | 82,954 |
| History of Italy | 0 | - | 4.55 | 32,095 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,117 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,457 |
| Celtic Nations | 0 | - | 4.69 | 47,040 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,415 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,074 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,332,410 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,369 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,340 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,798 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,851 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 174,318 |
| Regions of France | 0 | - | 4.70 | 121,533 |
| France Immigration by Country | 0 | - | 4.70 | 76,772 |
| Famous Germans | 0 | - | 4.50 | 55,606 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,558 |
| Germany True or False? | 0 | - | 4.61 | 48,934 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,282 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,268 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,577 |
| Most Common First Names in Spain | 0 | - | 4.29 | 52,663 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,371 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,864 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,061 |
| Counties of England | 0 | - | 4.97 | 800,396 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,733 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,353 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,411 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,272 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,518 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,707 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,546 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,462 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,053 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,409 |
| Word Chain - Germany | 0 | - | 4.31 | 22,647 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,140 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,620 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,360 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,646 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,293 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,462 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,373 |
| Name a Valid English City | 0 | - | 4.19 | 16,773 |
| Champions League Winners | 0 | - | 4.92 | 1,011,831 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,761 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,460 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,658 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,279 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,228 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,782 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,110 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,797 |
| European Geographic Groups of Four | 0 | - | 4.57 | 18,835 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,092 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,395 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,837 |
| Famous French People | 0 | - | 4.07 | 35,947 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,386 |
| Germany Country Quiz | 0 | - | 4.83 | 158,451 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,805 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,145 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,984 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,880 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,766 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,511 |
| History of The Netherlands | 0 | - | 4.46 | 17,506 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,243 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,450 |
| Canary Islands | 0 | - | 4.62 | 17,503 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,455 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,915 |
| British Spellings | 0 | - | 4.06 | 99,534 |
| British to American Food Translation | 0 | - | 3.38 | 52,003 |
| British Acronyms | 0 | - | 4.40 | 45,884 |
| UK Immigration by Country | 0 | - | 4.94 | 141,330 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,473 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,267 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,025 |
| Geography of Scotland | 0 | - | 4.63 | 21,692 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,386 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,587 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,310 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,407 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,808 |
| Name a Valid African Country | 0 | - | 4.98 | 154,612 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,680 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,691 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,033 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,017 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,718 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,638 |
| Random Point on Land to European Country | 0 | - | 4.94 | 77,668 |
| Slavic Languages | 0 | - | 4.68 | 54,555 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,654 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,103 |
| France A-Z | 0 | - | 4.16 | 38,294 |
| French History Multiple Choice | 0 | - | 4.55 | 33,160 |
| History of Germany | 0 | - | 4.39 | 52,927 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,042 |
| Name that Greek Letter | 0 | - | 4.93 | 324,460 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 43,599 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,108 |
| Roman Names for Places | 0 | - | 4.62 | 58,549 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,426 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,565 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,185 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,638 |
| Switzerland A-Z | 0 | - | 4.45 | 25,722 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,943 |
| Malta Country Quiz | 0 | - | 4.81 | 31,163 |
| Topological Map of Asia Quiz | 0 | - | 4.82 | 20,304 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,120 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,703 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,527 |
| History of Russia Quiz | 0 | - | 4.47 | 31,975 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,812 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,246 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,301 |
| Movies Set in France | 0 | - | 4.26 | 13,138 |
| French Inventions | 0 | - | 4.10 | 13,913 |
| French Foods | 0 | - | 4.00 | 27,742 |
| History of Paris | 0 | - | 4.24 | 13,665 |
| The Trojan War | 0 | - | 4.83 | 39,892 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,516 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,873 |
| Italian Inventions | 0 | - | 3.81 | 18,463 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,537 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,760 |
| Famous Nordic People | 0 | - | 4.34 | 20,219 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,453 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,081 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,652 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,627 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,353 |
| Geography of Spain | 0 | - | 4.59 | 22,135 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,554 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,397 |
| People on Money - England | 0 | - | 4.29 | 16,630 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,028 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,226 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,856 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,304 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,160 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,569 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,948 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,489 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,159 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,592 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,531 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,143 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,391 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,990 |
| Europe Map Quiz | 0 | - | 5.00 | 4,776,718 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,997 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,366 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,602 |
| Capitals of French Regions | 0 | - | 4.45 | 16,142 |
| Kings of France Quiz | 0 | - | 4.20 | 32,859 |
| Capitals of German States | 0 | - | 4.74 | 29,026 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,446 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,536 |
| Ancient Greek Words | 0 | - | 4.93 | 112,117 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,674 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,222 |
