| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,533 |
| Official European Union Languages | 0 | - | 4.97 | 239,372 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,400 |
| Slavic Languages | 0 | - | 4.68 | 54,590 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,598 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,787 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,055 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,204 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,599 |
| History of Russia Quiz | 0 | - | 4.47 | 31,980 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,827 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,988 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,912 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,443 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,862 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,056 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,745 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,899 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,607 |
| Slavic Countries | 0 | - | 4.96 | 112,147 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,600 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,323 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,872 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,854 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,672 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,880 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,463 |
| Celtic Nations | 0 | - | 4.61 | 47,054 |
| Champions League Winners | 0 | - | 4.92 | 1,012,647 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,508 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,572 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 88,148 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,661 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,744 |
| Geography of Russia | 0 | - | 4.57 | 21,572 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,302 |
| States of Germany | 0 | - | 4.95 | 153,897 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,501 |
| Regions of Italy | 0 | - | 4.92 | 76,616 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,629 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,951 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,575 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,009 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,801 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,679 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,992 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,065 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,320 |
| Departments of France | 0 | - | 4.93 | 54,813 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,691 |
| England or Wales? | 0 | - | 4.94 | 45,879 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,544 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,696 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,697 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,131 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,210 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,758 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,000 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,553 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,408 |
| The Trojan War | 0 | - | 4.83 | 39,920 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,452 |
| Name that Greek Letter | 0 | - | 4.93 | 324,598 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,627 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,701 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,448 |
| Roman Emperors | 0 | - | 4.95 | 120,803 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,583 |
| Languages of Spain | 0 | - | 4.36 | 23,390 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,681 |
| Word Chain - Russia | 0 | - | 4.33 | 15,780 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,836 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,054 |
| History of Italy | 0 | - | 4.55 | 32,104 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,168 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,772 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,370 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,620 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,573 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 120,939 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,168 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,944 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,615 |
| European Geography By Letter - M | 0 | - | 4.69 | 131,953 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,793 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,320 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,541 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,224 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,391 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,441 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,092 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,394 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,361 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,158 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,402 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,629 |
| Capitals of French Regions | 0 | - | 4.45 | 16,150 |
| Regions of France | 0 | - | 4.70 | 121,676 |
| France Immigration by Country | 0 | - | 4.70 | 76,815 |
| Famous Germans | 0 | - | 4.50 | 55,646 |
| German Groups of Things | 0 | - | 4.47 | 38,585 |
| Capitals of German States | 0 | - | 4.74 | 29,032 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,476 |
| Germany True or False? | 0 | - | 4.61 | 48,955 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,298 |
| Ancient Greek Words | 0 | - | 4.93 | 112,198 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,028 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,398 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,610 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,375 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,625 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,535 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,755 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,764 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,746 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,522 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,236 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,992 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,096 |
| Top World Languages | 0 | - | 4.92 | 827,176 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,210 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,612 |
| Australian Capitals | 0 | - | 4.92 | 62,799 |
| European Physical Geography | 0 | - | 4.26 | 33,570 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,068 |
| History of Austria | 0 | - | 4.70 | 17,946 |
| Geography of the French Empire | 0 | - | 4.45 | 27,191 |
| The French Revolution | 0 | - | 4.47 | 24,105 |
| France Multiple Choice | 0 | - | 4.39 | 40,805 |
| History of France | 0 | - | 4.61 | 57,443 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,536 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,278 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,913 |
| The Vikings! | 0 | - | 4.46 | 28,387 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,301 |
| The Portuguese Empire | 0 | - | 4.58 | 12,093 |
| American to British Word Translation | 0 | - | 4.14 | 139,514 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,249 |
| Champions League Top 4 | 0 | - | 4.77 | 138,081 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,945 |
| Asia Map Quiz | 0 | - | 4.99 | 922,661 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,299 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,495 |
| Countries by Official Language | 0 | - | 4.95 | 195,636 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,919 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,055 |
| Countries in their Native Language | 0 | - | 4.99 | 199,413 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,437 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,195 |
| Australia Map Quiz | 0 | - | 4.95 | 345,697 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,191 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,347 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,818 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,195 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,650 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,718 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,023 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,837 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,537 |
| European Geography By Letter - I | 0 | - | 4.09 | 96,237 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,884 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,303 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,378 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,822 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,668 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,645 |
| European Geography A-Z | 0 | - | 4.29 | 49,426 |
| Country Codes of Europe | 0 | - | 3.43 | 13,781 |
| The Only European Country ... | 0 | - | 4.91 | 218,231 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,092 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,748 |
| Seas of Europe | 0 | - | 4.37 | 84,812 |
| European Geographic Groups of Four | 0 | - | 4.60 | 19,413 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,345 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,148 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,656 |
| Austria... or Australia? | 0 | - | 4.68 | 104,639 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,111 |
| Famous French People | 0 | - | 4.07 | 35,979 |
| Presidents of France | 0 | - | 4.25 | 24,289 |
| France A-Z | 0 | - | 4.16 | 38,305 |
| Word Chain - France | 0 | - | 4.38 | 42,895 |
| History of Germany | 0 | - | 4.39 | 52,937 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,164 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,997 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,123 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,779 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,909 |
| Italian Foods | 0 | - | 4.30 | 73,104 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,550 |
| The Mafia Quiz | 0 | - | 4.46 | 23,404 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 43,975 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,142 |
| Roman Names for Places | 0 | - | 4.62 | 58,594 |
| Byzantine History | 0 | - | 4.91 | 28,983 |
| Byzantine Emperors | 0 | - | 4.92 | 14,479 |
| History of The Netherlands | 0 | - | 4.46 | 17,522 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,092 |
| Most Common First Names in Spain | 0 | - | 4.32 | 54,572 |
| Canary Islands | 0 | - | 4.62 | 17,508 |
