| French Geography Quiz #1 | 0 | - | 4.89 | 35,005 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,904 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,609 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,330 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,662 |
| States of Germany | 0 | - | 4.95 | 153,943 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,511 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,845 |
| Departments of France | 0 | - | 4.93 | 54,837 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,694 |
| Most Common First Names in Spain | 0 | - | 4.32 | 54,702 |
| England or Wales? | 0 | - | 4.94 | 45,887 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,557 |
| Official European Union Languages | 0 | - | 4.97 | 239,407 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,423 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,114 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,436 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,074 |
| The Trojan War | 0 | - | 4.83 | 39,928 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,656 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,007 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,462 |
| Roman Emperors | 0 | - | 4.95 | 120,858 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,715 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,218 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,912 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,215 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,992 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,457 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,871 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,132 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,836 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,978 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,469 |
| Celtic Nations | 0 | - | 4.61 | 47,059 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,311 |
| Famous Germans | 0 | - | 4.50 | 55,658 |
| German Groups of Things | 0 | - | 4.47 | 38,586 |
| Capitals of German States | 0 | - | 4.74 | 29,032 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,479 |
| Germany True or False? | 0 | - | 4.61 | 48,958 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,968 |
| Geography of Spain | 0 | - | 4.59 | 22,147 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,875 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,633 |
| Champions League Winners | 0 | - | 4.92 | 1,012,851 |
| NFL Football Last Names | 0 | - | 4.43 | 171,903 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,663 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,313 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,537 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,590 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,228 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,680 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,839 |
| Countries Bordering France | 0 | - | 4.83 | 404,313 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,539 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,296 |
| Regions of Italy | 0 | - | 4.92 | 76,659 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,641 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,308 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,985 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,592 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,254 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,805 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,862 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,683 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,067 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,263 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,373 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,602 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,561 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,870 |
| Austria... or Australia? | 0 | - | 4.68 | 104,648 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,495 |
| Germany Country Quiz | 0 | - | 4.83 | 158,552 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,884 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,166 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,999 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,001 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,860 |
| Italian Foods | 0 | - | 4.30 | 73,113 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,552 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,303 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,568 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,565 |
| British to American Food Translation | 0 | - | 3.38 | 52,015 |
| UK Immigration by Country | 0 | - | 4.94 | 141,448 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,627 |
| British Monopoly Board | 0 | - | 4.52 | 41,234 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,441 |
| Name the English Monarchs | 0 | - | 4.91 | 505,291 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,591 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,531 |
| Name a Valid African Country | 0 | - | 4.98 | 154,749 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,271 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,308 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,674 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,792 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,700 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,699 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,140 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,240 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,768 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,769 |
| Slavic Languages | 0 | - | 4.68 | 54,604 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,369 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,656 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,828 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,419 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,114 |
| France A-Z | 0 | - | 4.16 | 38,306 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,064 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,380 |
| Countries that Beat France | 0 | - | 4.48 | 76,208 |
| Geography of Germany | 0 | - | 4.35 | 17,242 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,034 |
| History of Germany | 0 | - | 4.39 | 52,942 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,395 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,556 |
| Name that Greek Letter | 0 | - | 4.93 | 324,628 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,135 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,781 |
| Counties of Ireland | 0 | - | 4.92 | 196,782 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,702 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,154 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,021 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,026 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,150 |
| Roman Names for Places | 0 | - | 4.62 | 58,602 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,551 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,586 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,762 |
| Switzerland A-Z | 0 | - | 4.45 | 25,738 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,072 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 75,645 |
| Countries that Beat the United Kingdom | 0 | - | 4.53 | 63,869 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,886 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,002 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,007 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 238,013 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,947 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,167 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,315 |
| Countries that Beat China | 0 | - | 4.85 | 116,488 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 491,323 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 715,132 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,051 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,042 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,616 |
| History of Russia Quiz | 0 | - | 4.47 | 31,983 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,830 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,084 |
| Word Chain - Germany | 0 | - | 4.31 | 22,657 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,209 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,909 |
| Famous Irish People | 0 | - | 4.05 | 46,048 |
| History of Italy | 0 | - | 4.55 | 32,106 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,179 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,779 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,463 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,134 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,377 |
| British Geography A-Z | 0 | - | 4.42 | 19,588 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,981 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,907 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,708 |
| London A-Z | 0 | - | 4.10 | 40,852 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,551,261 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,996 |
| Category Elimination - U.S. States #2 | 0 | - | 4.83 | 135,252 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,636 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,008 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,591 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,013 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,686 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,012 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,831 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,346 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,564 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,247 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,042 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,442 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,096 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,395 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,363 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,184 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,413 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,632 |
| Capitals of French Regions | 0 | - | 4.45 | 16,153 |
| Regions of France | 0 | - | 4.70 | 121,707 |
| France Immigration by Country | 0 | - | 4.70 | 76,822 |
| Kings of France Quiz | 0 | - | 4.20 | 32,874 |
| German Loan Words | 0 | - | 4.27 | 140,427 |
| German History A-Z | 0 | - | 4.49 | 24,821 |
| German Inventions | 0 | - | 3.91 | 30,266 |
| Embarrassing Chapters in German History | 0 | - | 3.40 | 12,670 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,311 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,552 |
| Ancient Greek Words | 0 | - | 4.93 | 112,214 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,047 |
