| European Countries by First 2 Letters | 0 | - | 4.95 | 531,402 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,529 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,493 |
| Official European Union Languages | 0 | - | 4.97 | 239,287 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,337 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,919 |
| Slavic Languages | 0 | - | 4.68 | 54,567 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,187 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,977 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,819 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,460 |
| Celtic Nations | 0 | - | 4.69 | 47,047 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,818 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,928 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 174,473 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,569 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,299 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,559 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,363 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,543 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,664 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,882 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,592 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,544 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,053 |
| States of Germany | 0 | - | 4.95 | 153,807 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,461 |
| Regions of Italy | 0 | - | 4.92 | 76,535 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,587 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,841 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,538 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,792 |
| Champions League Winners | 0 | - | 4.92 | 1,012,134 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,851 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,964 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,197 |
| Departments of France | 0 | - | 4.93 | 54,747 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,669 |
| England or Wales? | 0 | - | 4.94 | 45,862 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,447 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,684 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,693 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,094 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,089 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,696 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,572 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,723 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,985 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,177 |
| Name that Greek Letter | 0 | - | 4.93 | 324,498 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,553 |
| History of Russia Quiz | 0 | - | 4.47 | 31,977 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,519 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,380 |
| The Trojan War | 0 | - | 4.83 | 39,903 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,550 |
| History of Italy | 0 | - | 4.55 | 32,098 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,129 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,392 |
| Roman Emperors | 0 | - | 4.95 | 120,727 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,763 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,359 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,156 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,901 |
| Australian Capitals | 0 | - | 4.92 | 62,791 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,318 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,708 |
| European Geography By Letter - C | 0 | - | 4.46 | 118,767 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,666 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,273 |
| European Geography By Letter - M | 0 | - | 4.69 | 131,745 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,656 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,203 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,444 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,067 |
| Europe Map Quiz | 0 | - | 5.00 | 4,777,685 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,423 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,079 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,378 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,346 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,055 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,378 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,612 |
| Capitals of French Regions | 0 | - | 4.45 | 16,144 |
| Regions of France | 0 | - | 4.70 | 121,597 |
| France Immigration by Country | 0 | - | 4.70 | 76,788 |
| Famous Germans | 0 | - | 4.50 | 55,621 |
| German Groups of Things | 0 | - | 4.47 | 38,571 |
| Capitals of German States | 0 | - | 4.74 | 29,029 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,452 |
| Germany True or False? | 0 | - | 4.61 | 48,940 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,280 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,640 |
| Ancient Greek Words | 0 | - | 4.93 | 112,147 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,999 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,582 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,371 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,588 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,525 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,617 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,411 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,187 |
| European Physical Geography | 0 | - | 4.26 | 33,564 |
| Geography of Russia | 0 | - | 4.57 | 21,570 |
| History of Austria | 0 | - | 4.70 | 17,939 |
| Geography of the French Empire | 0 | - | 4.45 | 27,187 |
| The French Revolution | 0 | - | 4.47 | 24,098 |
| France Multiple Choice | 0 | - | 4.39 | 40,796 |
| History of France | 0 | - | 4.61 | 57,415 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,532 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,705 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,374 |
| The Vikings! | 0 | - | 4.46 | 28,386 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,283 |
| The Portuguese Empire | 0 | - | 4.58 | 12,090 |
| American to British Word Translation | 0 | - | 4.14 | 139,478 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,000 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,236 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,758 |
| Champions League Top 4 | 0 | - | 4.77 | 137,942 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,710 |
| Asia Map Quiz | 0 | - | 4.99 | 922,072 |
| Africa Map Quiz | 0 | - | 5.00 | 2,124,852 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,121 |
| Australia Map Quiz | 0 | - | 4.95 | 345,598 |
| United States Map Quiz | 0 | - | 4.98 | 4,166,407 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,245 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,805 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,101 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,523 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,517 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,843 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,686 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,381 |
| European Geography By Letter - I | 0 | - | 4.09 | 96,097 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,740 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,187 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,292 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,808 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,567 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 116,538 |
| European Geography A-Z | 0 | - | 4.29 | 49,412 |
| Country Codes of Europe | 0 | - | 3.43 | 13,770 |
| The Only European Country ... | 0 | - | 4.91 | 218,060 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,020 |
| European Geographic Groups of Four | 0 | - | 4.60 | 19,084 |
| Austria... or Australia? | 0 | - | 4.68 | 104,617 |
| Famous French People | 0 | - | 4.07 | 35,957 |
| Presidents of France | 0 | - | 4.25 | 24,272 |
| Word Chain - France | 0 | - | 4.38 | 42,884 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,157 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,984 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,166 |
| Italian Foods | 0 | - | 4.30 | 73,078 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,526 |
| The Mafia Quiz | 0 | - | 4.46 | 23,401 |
| History of The Netherlands | 0 | - | 4.46 | 17,512 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,090 |
| Canary Islands | 0 | - | 4.62 | 17,505 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,926 |
| British Spellings | 0 | - | 4.06 | 99,539 |
| British Groups of Things | 0 | - | 4.25 | 82,956 |
| British Acronyms | 0 | - | 4.40 | 45,886 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,077 |
| British Monopoly Board | 0 | - | 4.52 | 41,226 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,032 |
| Geography of Scotland | 0 | - | 4.63 | 21,697 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,607 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,835 |
| Countries of Africa | 0 | - | 5.00 | 2,550,619 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,515 |
| African East Coast | 0 | - | 4.96 | 96,477 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,361 |
| Australian States and Territories | 0 | - | 4.96 | 142,503 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,418 |
| Australia True or False | 0 | - | 4.87 | 57,028 |
| Flags of North and South America | 0 | - | 4.99 | 375,359 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,824 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,578 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,324 |
| South America Map Quiz | 0 | - | 5.00 | 1,553,326 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,686 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,027,963 |
| North America Map Quiz | 0 | - | 4.98 | 250,238 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,892 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,693 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,668 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,421 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,028 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,252,166 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,332,811 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,198 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,759 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,002 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,546 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,733 |
| Seas of Europe | 0 | - | 4.37 | 84,802 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,960 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,833 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,567 |
