| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,723 |
| Official European Union Languages | 0 | - | 4.97 | 239,782 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,639 |
| Slavic Languages | 0 | - | 4.68 | 54,690 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,491 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,707 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,854 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,310 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,833 |
| History of Russia Quiz | 0 | - | 4.47 | 32,005 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,872 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,055 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,978 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,559 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,021 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,741 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,734 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,171 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,786 |
| Slavic Countries | 0 | - | 4.96 | 112,364 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,691 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,448 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,636 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,075 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,738 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,253 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,504 |
| Celtic Nations | 0 | - | 4.61 | 47,094 |
| Champions League Winners | 0 | - | 4.92 | 1,016,061 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,875 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,758 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,769 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,976 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,469 |
| Geography of Russia | 0 | - | 4.57 | 21,598 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,471 |
| States of Germany | 0 | - | 4.95 | 154,466 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,684 |
| Regions of Italy | 0 | - | 4.92 | 77,075 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,795 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,310 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,753 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,057 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,841 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,750 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,836 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,895 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,908 |
| Departments of France | 0 | - | 4.93 | 55,154 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,737 |
| England or Wales? | 0 | - | 4.94 | 45,967 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,116 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,741 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,719 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,320 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 121,932 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,937 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,082 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,696 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,553 |
| The Trojan War | 0 | - | 4.83 | 39,987 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,877 |
| Name that Greek Letter | 0 | - | 4.93 | 324,972 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,947 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,737 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,587 |
| Roman Emperors | 0 | - | 4.95 | 121,191 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,626 |
| Languages of Spain | 0 | - | 4.36 | 23,437 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 222,533 |
| Word Chain - Russia | 0 | - | 4.33 | 15,797 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,716 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,536 |
| History of Italy | 0 | - | 4.55 | 32,144 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,371 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,819 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,424 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,678 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,143 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,520 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,924 |
| European Geography By Letter - D | 0 | - | 4.48 | 116,934 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,051 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,496 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,115 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,597 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,042 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,582 |
| Europe Map Quiz | 0 | - | 5.00 | 4,787,933 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,524 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,176 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,459 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,427 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,428 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,534 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,739 |
| Capitals of French Regions | 0 | - | 4.45 | 16,178 |
| Regions of France | 0 | - | 4.70 | 122,079 |
| France Immigration by Country | 0 | - | 4.70 | 76,934 |
| Famous Germans | 0 | - | 4.50 | 55,788 |
| German Groups of Things | 0 | - | 4.47 | 38,632 |
| Capitals of German States | 0 | - | 4.74 | 29,072 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,543 |
| Germany True or False? | 0 | - | 4.61 | 49,020 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,464 |
| Ancient Greek Words | 0 | - | 4.93 | 112,454 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,374 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,496 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,753 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,405 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,816 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,567 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,812 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,811 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,305 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,793 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,676 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,366 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,679 |
| Top World Languages | 0 | - | 4.92 | 829,716 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,240 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,340 |
| Australian Capitals | 0 | - | 4.92 | 62,830 |
| European Physical Geography | 0 | - | 4.26 | 33,591 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,129 |
| History of Austria | 0 | - | 4.70 | 17,971 |
| Geography of the French Empire | 0 | - | 4.45 | 27,216 |
| The French Revolution | 0 | - | 4.47 | 24,146 |
| France Multiple Choice | 0 | - | 4.39 | 40,847 |
| History of France | 0 | - | 4.61 | 57,605 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,559 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,834 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,776 |
| The Vikings! | 0 | - | 4.46 | 28,405 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,385 |
| The Portuguese Empire | 0 | - | 4.58 | 12,106 |
| American to British Word Translation | 0 | - | 4.14 | 139,687 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,366 |
| Champions League Top 4 | 0 | - | 4.78 | 139,048 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,471 |
| Asia Map Quiz | 0 | - | 4.99 | 925,141 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,410 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,631 |
| Countries by Official Language | 0 | - | 4.95 | 195,989 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,349 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,620 |
| Countries in their Native Language | 0 | - | 4.99 | 199,732 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,939 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,460 |
| Australia Map Quiz | 0 | - | 4.95 | 346,165 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,210 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,927 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,916 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,778 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,223 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,186 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,466 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,184 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,947 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,562 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,197 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,574 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,578 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,895 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,891 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,096 |
| European Geography A-Z | 0 | - | 4.29 | 49,482 |
| Country Codes of Europe | 0 | - | 3.45 | 13,831 |
| The Only European Country ... | 0 | - | 4.91 | 218,987 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,499 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,852 |
| Seas of Europe | 0 | - | 4.37 | 84,902 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,181 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,363 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,203 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,670 |
| Austria... or Australia? | 0 | - | 4.67 | 104,767 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,143 |
| Famous French People | 0 | - | 4.07 | 36,102 |
| Presidents of France | 0 | - | 4.25 | 24,338 |
| France A-Z | 0 | - | 4.16 | 38,334 |
| Word Chain - France | 0 | - | 4.38 | 42,935 |
| History of Germany | 0 | - | 4.39 | 52,970 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,235 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,042 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,299 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,840 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,964 |
| Italian Foods | 0 | - | 4.30 | 73,276 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,649 |
| The Mafia Quiz | 0 | - | 4.46 | 23,437 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,287 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,206 |
| Roman Names for Places | 0 | - | 4.62 | 58,700 |
| Byzantine History | 0 | - | 4.91 | 29,022 |
| Byzantine Emperors | 0 | - | 4.93 | 14,593 |
| History of The Netherlands | 0 | - | 4.46 | 17,552 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,117 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,265 |
| Canary Islands | 0 | - | 4.62 | 17,541 |
