| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,496 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,294 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 80,902 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,207 |
| States of Germany | 0 | - | 4.95 | 153,011 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,220 |
| Regions of Italy | 0 | - | 4.92 | 76,165 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,364 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,258 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,367 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,332 |
| Famous Germans | 0 | - | 4.50 | 55,480 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,703 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,080 |
| Departments of France | 0 | - | 4.93 | 54,380 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,599 |
| England or Wales? | 0 | - | 4.94 | 45,772 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,274 |
| Official European Union Languages | 0 | - | 4.97 | 238,819 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,064 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,784 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,122 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,631 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,077 |
| Famous French People | 0 | - | 4.07 | 35,788 |
| The Mafia Quiz | 0 | - | 4.46 | 23,363 |
| History of The Netherlands | 0 | - | 4.46 | 17,469 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,895 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,913 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,874 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,507 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,082 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,626 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,637 |
| France A-Z | 0 | - | 4.16 | 38,250 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,435 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,151 |
| Switzerland A-Z | 0 | - | 4.45 | 25,677 |
| Counties of England | 0 | - | 4.97 | 798,333 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,672 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,414 |
| Celtic Nations | 0 | - | 4.69 | 46,977 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,595 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,049 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,315 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,919 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,732 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,963 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,717 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,017 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,849 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,137 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,620 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,737 |
| Regions of France | 0 | - | 4.72 | 121,116 |
| France Immigration by Country | 0 | - | 4.70 | 76,643 |
| German Groups of Things | 0 | - | 4.46 | 38,505 |
| Germany True or False? | 0 | - | 4.61 | 48,863 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,115 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,466 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,324 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,994 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,384 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,674 |
| Champions League Winners | 0 | - | 4.91 | 1,009,113 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,674 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,322 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,835 |
| Belgium Country Quiz | 0 | - | 4.72 | 71,905 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,720 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,061 |
| Famous Nordic People | 0 | - | 4.34 | 20,158 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,196 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,620 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,104 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,046 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,539 |
| People on Money - England | 0 | - | 4.29 | 16,622 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,734 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,622 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,982 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,361 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,231 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,917 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,693 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,331 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,861 |
| European Geography by Letter - W | 0 | - | 4.20 | 83,023 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,301 |
| European Geography A-Z | 0 | - | 4.29 | 49,347 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,553 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,759 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,236 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,488 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,749 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,046 |
| Word Chain - France | 0 | - | 4.38 | 42,821 |
| Germany Country Quiz | 0 | - | 4.83 | 158,101 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,548 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,057 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,943 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,577 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,249 |
| Italian Foods | 0 | - | 4.30 | 72,895 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,064 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,935 |
| Canary Islands | 0 | - | 4.62 | 17,489 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,205 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,797 |
| British Spellings | 0 | - | 4.06 | 99,493 |
| British Groups of Things | 0 | - | 4.25 | 82,900 |
| British Acronyms | 0 | - | 4.40 | 45,834 |
| UK Immigration by Country | 0 | - | 4.94 | 141,090 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,051 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,078 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,904 |
| Geography of Scotland | 0 | - | 4.63 | 21,645 |
| Famous Scottish People | 0 | - | 4.22 | 18,409 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,859 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,669 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,826 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,457 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,619 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,584 |
| Slavic Languages | 0 | - | 4.68 | 54,441 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,836 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,326 |
| French History Multiple Choice | 0 | - | 4.55 | 33,106 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,154 |
| History of Germany | 0 | - | 4.39 | 52,883 |
| The Trojan War | 0 | - | 4.83 | 39,779 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,496 |
| Name that Greek Letter | 0 | - | 4.93 | 324,079 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,103 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,652 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,621 |
| Roman Emperors | 0 | - | 4.95 | 120,307 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,249 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,507 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,639 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 42,017 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,440 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,742 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,034 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,834 |
| Malta Country Quiz | 0 | - | 4.81 | 31,099 |
| Africa A-Z | 0 | - | 4.57 | 46,659 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,268 |
| Famous Russians | 0 | - | 4.16 | 23,857 |
| History of Russia Quiz | 0 | - | 4.47 | 31,943 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,767 |
| Russian History A-Z | 0 | - | 4.35 | 31,820 |
| Movies Set in France | 0 | - | 4.26 | 13,128 |
| French Inventions | 0 | - | 4.10 | 13,905 |
| History of Paris | 0 | - | 4.24 | 13,657 |
| Word Chain - Germany | 0 | - | 4.31 | 22,606 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,162 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,619 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,371 |
| Famous Irish People | 0 | - | 4.05 | 46,017 |
| History of Italy | 0 | - | 4.55 | 32,039 |
| Word Chain - Italy | 0 | - | 4.07 | 23,178 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,910 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,121 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,711 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,286 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,354 |
| Name a Valid English City | 0 | - | 4.19 | 16,739 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,116 |
| London A-Z | 0 | - | 4.10 | 40,802 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 41,596 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,506 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,266 |
| Europe Map Quiz | 0 | - | 5.00 | 4,768,843 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,334 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,997 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,280 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,280 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,526 |
| Capitals of French Regions | 0 | - | 4.45 | 16,096 |
| Kings of France Quiz | 0 | - | 4.20 | 32,800 |
| Capitals of German States | 0 | - | 4.74 | 28,979 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,382 |
| Ancient Greek Words | 0 | - | 4.93 | 111,830 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,237 |
| British to American Food Translation | 0 | - | 3.38 | 51,977 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,481 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,701 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,782 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,967 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,215 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,790 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,469 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,978 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,423 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,533 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,100 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,977 |
| Middle East A-Z | 0 | - | 4.47 | 46,119 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,318,988 |
