| European Countries by First 2 Letters | 0 | - | 4.96 | 509,756 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 65,208 |
| Official European Union Languages | 0 | - | 4.98 | 228,166 |
| European Countries in their Native Language | 0 | - | 4.99 | 151,255 |
| England or Wales? | 0 | - | 4.94 | 43,304 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 409,647 |
| History of Russia Quiz | 0 | - | 4.48 | 31,111 |
| Geography of Russia | 0 | - | 4.56 | 20,902 |
| Slavic Languages | 0 | - | 4.65 | 51,799 |
| Europe Geography Decoder | 0 | - | 4.85 | 67,088 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.84 | 40,712 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 40,171 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 22,360 |
| Celtic Nations | 0 | - | 4.74 | 46,024 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.84 | 84,043 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 298,782 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 144,570 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 82,775 |
| Eastern Europe Map Quiz | 0 | - | 4.90 | 121,968 |
| Slavic Countries | 0 | - | 4.96 | 106,655 |
| Germany Multiple Choice | 0 | - | 4.83 | 52,071 |
| Australia... or New Zealand? | 0 | - | 4.83 | 58,629 |
| Catholic Countries in Europe | 0 | - | 4.83 | 89,942 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 56,401 |
| European Geography By Letter - B #2 | 0 | - | 4.81 | 65,710 |
| Category Elimination - European Geography #3 | 0 | - | 4.84 | 74,011 |
| Federal Subjects of Russia | 0 | - | 4.93 | 129,820 |
| Word Chain - Russia | 0 | - | 4.36 | 15,364 |
| Slovakia... or Slovenia? | 0 | - | 4.70 | 40,873 |
| Countries Formerly in Yugoslavia | 0 | - | 4.96 | 120,029 |
| States of Germany | 0 | - | 4.94 | 138,269 |
| Germany Immigration by Country | 0 | - | 4.86 | 75,681 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 29,377 |
| Counties of Ireland | 0 | - | 4.90 | 176,164 |
| Regions of Italy | 0 | - | 4.91 | 68,125 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 35,065 |
| Regions of Spain Quiz | 0 | - | 4.89 | 104,757 |
| Cantons of Switzerland | 0 | - | 4.97 | 45,460 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 16,567 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.96 | 310,225 |
| Champions League Winners | 0 | - | 4.91 | 948,970 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 217,923 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 263,321 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 155,767 |
| Departments of France | 0 | - | 4.88 | 44,821 |
| Countries Surrounding Rome | 0 | - | 4.96 | 48,177 |
| All UEFA Champions League Teams Ever | 0 | - | 4.83 | 120,978 |
| Pre-Euro Currencies | 0 | - | 4.43 | 51,250 |
| Word Scramble - European Countries | 0 | - | 4.74 | 135,666 |
| Top 20 Football Clubs in Europe | 0 | - | 4.49 | 103,781 |
| Austria... or Australia? | 0 | - | 4.74 | 101,583 |
| Capitals of Italian Regions | 0 | - | 4.61 | 35,592 |
| Spanish Immigration by Country | 0 | - | 4.63 | 54,086 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 61,376 |
| Embarrassing Chapters in Russian History | 0 | - | 3.75 | 19,875 |
| French Geography Quiz #1 | 0 | - | 4.87 | 33,126 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 615,472 |
| Iceland... or Ireland? | 0 | - | 4.74 | 55,595 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 258,125 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 46,516 |
| Top European Languages on a Map | 0 | - | 4.78 | 126,099 |
| Famous Russians Quiz | 0 | - | 4.16 | 23,170 |
| The Trojan War | 0 | - | 4.81 | 37,836 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.83 | 102,911 |
| Italy Multiple Choice | 0 | - | 4.74 | 99,626 |
| Ancient Roman Trivia #1 | 0 | - | 4.83 | 75,143 |
| Roman Emperors | 0 | - | 4.96 | 109,608 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,582 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,192 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 268,422 |
| Australian Capitals | 0 | - | 4.92 | 61,881 |
| European Geography By Letter - A | 0 | - | 4.61 | 128,753 |
| European Geography By Letter - B #1 | 0 | - | 4.73 | 107,516 |
| European Geography By Letter - C | 0 | - | 4.46 | 108,786 |
| European Geography By Letter - D | 0 | - | 4.51 | 103,540 |
| European Geography By Letter - L | 0 | - | 4.52 | 108,981 |
| European Geography By Letter - M | 0 | - | 4.53 | 118,074 |
| European Geography By Letter - P | 0 | - | 4.79 | 93,353 |
| European Geography By Letter - N | 0 | - | 4.43 | 96,797 |
| European Geography By Letter - R | 0 | - | 4.41 | 90,226 |
| European Geography By Letter - V | 0 | - | 4.46 | 89,579 |
| Europe Map Quiz | 0 | - | 5.00 | 4,556,853 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 69,458 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 70,012 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 68,540 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 59,747 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 96,882 |
| Four Letter European Geography #1 | 0 | - | 4.48 | 24,343 |
| Four Letter European Geography #2 | 0 | - | 4.58 | 17,110 |
| Capitals of French Regions | 0 | - | 4.42 | 15,501 |
| Regions of France | 0 | - | 4.70 | 111,298 |
| France Immigration by Country | 0 | - | 4.77 | 73,352 |
| Famous Germans | 0 | - | 4.44 | 40,049 |
| German Groups of Things | 0 | - | 4.46 | 37,443 |
| Capitals of German States | 0 | - | 4.73 | 28,186 |
| Chancellors of Germany, 1949–present | 0 | - | 4.57 | 22,034 |
| Germany True or False? | 0 | - | 4.63 | 46,865 |
| Largest Islands of Greece | 0 | - | 4.58 | 44,497 |
| Olympian Gods Quiz | 0 | - | 4.96 | 471,859 |
| Name that Greek Letter | 0 | - | 4.94 | 311,182 |
| Ancient Greek Words | 0 | - | 4.92 | 105,457 |
| Famous Italians | 0 | - | 4.40 | 70,647 |
| Provinces of the Netherlands | 0 | - | 4.75 | 37,249 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 47,178 |
| Foods in a Full English Breakfast | 0 | - | 4.45 | 97,919 |
| Beatles Songs Quiz | 0 | - | 4.96 | 223,407 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 283,777 |
| Africa Map Quiz | 0 | - | 5.00 | 2,035,599 |
| Oceania Map Quiz | 0 | - | 4.98 | 605,632 |
| European Physical Geography | 0 | - | 4.24 | 32,791 |
| History of Austria | 0 | - | 4.69 | 17,161 |
| Geography of the French Empire | 0 | - | 4.51 | 26,200 |
| The French Revolution | 0 | - | 4.45 | 22,875 |
| France Multiple Choice | 0 | - | 4.37 | 39,947 |
| History of France Quiz | 0 | - | 4.56 | 41,711 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 22,827 |
| History of Ireland Quiz | 0 | - | 4.44 | 20,274 |
| History of Italy | 0 | - | 4.53 | 31,061 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 418,567 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 52,825 |
| The Vikings! | 0 | - | 4.46 | 27,791 |
| Sweden Immigration by Country | 0 | - | 4.64 | 44,942 |
| The Portuguese Empire | 0 | - | 4.54 | 11,705 |
| Languages of the United Kingdom | 0 | - | 4.13 | 39,810 |
| United Kingdom A-Z | 0 | - | 4.53 | 84,700 |
| Which Country of the United Kingdom? | 0 | - | 4.57 | 37,529 |
| Champions League Top 4 | 0 | - | 4.63 | 122,564 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,400,002 |
| Asia Map Quiz | 0 | - | 4.99 | 856,762 |
| Countries of Africa | 0 | - | 5.00 | 2,359,002 |
| African East Coast | 0 | - | 4.96 | 90,477 |
| Western Africa Map Quiz | 0 | - | 4.97 | 68,175 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 45,852 |
| Australia Map Quiz | 0 | - | 4.94 | 333,718 |
| United States Map Quiz | 0 | - | 4.98 | 4,054,818 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 201,849 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 89,712 |
| Countries That Use the Euro | 0 | - | 4.93 | 76,038 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 351,325 |
| European Geography By Letter - E | 0 | - | 4.22 | 109,225 |
| European Geography By Letter - F | 0 | - | 4.18 | 88,846 |
| European Geography By Letter - H | 0 | - | 4.29 | 92,358 |
| European Geography By Letter - G | 0 | - | 4.26 | 98,566 |
| European Geography By Letter - I | 0 | - | 4.11 | 92,049 |
| European Geography By Letter - K | 0 | - | 4.15 | 66,908 |
| European Geography By Letter - O | 0 | - | 4.29 | 59,920 |
| European Geography by Letter - W | 0 | - | 4.21 | 80,654 |
| European Geography By Letter - T | 0 | - | 4.40 | 73,148 |
| Europe Geography Quiz #3 | 0 | - | 4.33 | 62,050 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 48,744 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 104,597 |
| European Geography A-Z | 0 | - | 4.31 | 47,534 |
| Country Codes of Europe | 0 | - | 3.40 | 13,276 |
| The Only European Country ... | 0 | - | 4.92 | 198,169 |
| Presidents of France | 0 | - | 4.24 | 22,217 |
| Word Chain - France | 0 | - | 4.37 | 41,617 |
| Ancient Greek Trivia | 0 | - | 4.56 | 65,325 |
| Figures from Greek Mythology | 0 | - | 4.90 | 176,094 |
| Italian Foods | 0 | - | 4.30 | 68,989 |
| Countries Italy Declared War On | 0 | - | 4.75 | 41,845 |
| The Mafia Quiz | 0 | - | 4.46 | 22,574 |
| History of The Netherlands | 0 | - | 4.45 | 16,580 |
| Famous Nordic People | 0 | - | 4.41 | 10,967 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,537 |
| Canary Islands | 0 | - | 4.61 | 17,027 |
| Switzerland Immigration by Country | 0 | - | 4.78 | 26,228 |
| British Spellings Quiz | 0 | - | 4.07 | 97,714 |
| British Groups of Things | 0 | - | 4.25 | 81,946 |
| British Acronyms | 0 | - | 4.39 | 44,743 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,427 |
| British Monopoly Board | 0 | - | 4.51 | 40,330 |
| English Monarchs in Order by First Letter | 0 | - | 4.41 | 28,623 |
| Geography of Scotland | 0 | - | 4.63 | 20,666 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 89,788 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,341,439 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 95,613 |
| Flags of Africa Quiz | 0 | - | 5.00 | 426,423 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 25,442 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 208,595 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 111,451 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 154,886 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 129,089 |
| Top African Languages on a Map | 0 | - | 4.92 | 64,814 |
| African Island Countries | 0 | - | 4.96 | 96,115 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 234,298 |
| Australian States and Territories | 0 | - | 4.96 | 135,911 |
| Australian Immigration by Country | 0 | - | 4.82 | 75,532 |
| Australia True or False | 0 | - | 4.87 | 54,691 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 335,206 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 110,287 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 138,516 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 119,583 |
| South America Map Quiz | 0 | - | 5.00 | 1,492,588 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,100 |
| Countries of North America Quiz | 0 | - | 5.00 | 954,468 |
| North America Map Quiz | 0 | - | 4.98 | 224,536 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 111,215 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 610,755 |
| Most Spoken Languages in Canada | 0 | - | 4.90 | 51,618 |
| Straight Shot to Antarctica | 0 | - | 4.93 | 40,403 |
