| European Countries by First 2 Letters | 0 | - | 4.95 | 528,940 |
| History of Russia Quiz | 0 | - | 4.49 | 31,884 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,701 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,020 |
| Official European Union Languages | 0 | - | 4.97 | 238,195 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,652 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,633 |
| Geography of Russia | 0 | - | 4.57 | 21,511 |
| Slavic Languages | 0 | - | 4.68 | 54,286 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,899 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,769 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,367 |
| Celtic Nations | 0 | - | 4.69 | 46,910 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,273 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,041 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,809 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,047 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,785 |
| Slavic Countries | 0 | - | 4.96 | 111,514 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,297 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,894 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,677 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,945 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,415 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,032 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,749 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,512 |
| Word Chain - Russia | 0 | - | 4.33 | 15,739 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,761 |
| States of Germany | 0 | - | 4.96 | 152,017 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,913 |
| Regions of Italy | 0 | - | 4.92 | 75,626 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,959 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,691 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,045 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,664 |
| Champions League Winners | 0 | - | 4.92 | 1,004,320 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,714 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,399 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,752 |
| Departments of France | 0 | - | 4.93 | 53,859 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,524 |
| England or Wales? | 0 | - | 4.94 | 45,616 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,916 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,568 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,644 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,524 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,558 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,585 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,425 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,360 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,289 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,728 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,323 |
| Name that Greek Letter | 0 | - | 4.93 | 323,145 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,936 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,898 |
| Famous Russians | 0 | - | 4.16 | 23,821 |
| The Trojan War | 0 | - | 4.83 | 39,657 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,579 |
| History of Italy | 0 | - | 4.55 | 31,940 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,666 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,436 |
| Roman Emperors | 0 | - | 4.95 | 119,710 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,621 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,178 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,755 |
| Australian Capitals | 0 | - | 4.92 | 62,699 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,426 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,689 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,419 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,141 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,193 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,215 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,283 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,605 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,474 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,829 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,184 |
| Europe Map Quiz | 0 | - | 5.00 | 4,756,703 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,216 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,877 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,169 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,192 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,412 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,375 |
| Capitals of French Regions | 0 | - | 4.45 | 16,046 |
| Regions of France | 0 | - | 4.75 | 120,466 |
| France Immigration by Country | 0 | - | 4.70 | 76,417 |
| Famous Germans | 0 | - | 4.50 | 55,199 |
| German Groups of Things | 0 | - | 4.46 | 38,445 |
| Capitals of German States | 0 | - | 4.74 | 28,934 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,292 |
| Germany True or False? | 0 | - | 4.61 | 48,744 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,897 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,724 |
| Ancient Greek Words | 0 | - | 4.93 | 111,393 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,336 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,249 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,238 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,094 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,740 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,494 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,166 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,838 |
| European Physical Geography | 0 | - | 4.26 | 33,478 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,916 |
| History of Austria | 0 | - | 4.70 | 17,838 |
| Geography of the French Empire | 0 | - | 4.45 | 27,030 |
| The French Revolution | 0 | - | 4.46 | 23,910 |
| France Multiple Choice | 0 | - | 4.39 | 40,716 |
| History of France | 0 | - | 4.59 | 56,860 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,444 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,023 |
| The Vikings! | 0 | - | 4.46 | 28,321 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,056 |
| The Portuguese Empire | 0 | - | 4.58 | 12,050 |
| American to British Word Translation | 0 | - | 4.14 | 138,798 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,868 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,588 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,620 |
| Champions League Top 4 | 0 | - | 4.77 | 135,903 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,965 |
| Asia Map Quiz | 0 | - | 4.99 | 914,884 |
| Countries of Africa | 0 | - | 5.00 | 2,531,138 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,650 |
| African East Coast | 0 | - | 4.96 | 95,862 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,660 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,506 |
| Australia Map Quiz | 0 | - | 4.95 | 343,894 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,514 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,833 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,591 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,614 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,042 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,297 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,620 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,792 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,445 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,282 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,942 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,546 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,779 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,622 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,043 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,896 |
| European Geography A-Z | 0 | - | 4.29 | 49,213 |
| Country Codes of Europe | 0 | - | 3.43 | 13,700 |
| The Only European Country ... | 0 | - | 4.91 | 216,073 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,821 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,061 |
| Austria... or Australia? | 0 | - | 4.68 | 104,244 |
| Famous French People | 0 | - | 4.06 | 35,130 |
| Presidents of France | 0 | - | 4.25 | 24,043 |
| Word Chain - France | 0 | - | 4.38 | 42,750 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,949 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,881 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,519 |
| Italian Foods | 0 | - | 4.30 | 72,671 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,264 |
| The Mafia Quiz | 0 | - | 4.46 | 23,300 |
| History of The Netherlands | 0 | - | 4.46 | 17,412 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,014 |
| Canary Islands | 0 | - | 4.62 | 17,462 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,624 |
| British Spellings | 0 | - | 4.06 | 99,412 |
| British Groups of Things | 0 | - | 4.25 | 82,839 |
| British Acronyms | 0 | - | 4.39 | 45,764 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,023 |
| British Monopoly Board | 0 | - | 4.52 | 41,145 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,701 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,700 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,381,503 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,893 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,549 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,716 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,425 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,045 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,113 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,234 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,745 |
| African Island Countries | 0 | - | 4.96 | 101,465 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,114 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,148 |
| Australian States and Territories | 0 | - | 4.96 | 141,720 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,237 |
| Australia True or False | 0 | - | 4.87 | 56,785 |
| Flags of North and South America | 0 | - | 4.99 | 372,117 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,527 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,109 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,410 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,661 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,941 |
| North America Map Quiz | 0 | - | 4.98 | 247,840 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,666 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,541 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,337 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,056 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,808 |
