| European Countries by First 2 Letters | 0 | - | 4.95 | 527,812 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,050 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,853 |
| Official European Union Languages | 0 | - | 4.97 | 237,670 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,316 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,568 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,747 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,668 |
| Celtic Nations | 0 | - | 4.69 | 46,873 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,316 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,105 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,346 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,480 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,198 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,745 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,526 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,295 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,620 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,619 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,599 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,689 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,342 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,319 |
| States of Germany | 0 | - | 4.96 | 151,086 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,515 |
| Regions of Italy | 0 | - | 4.92 | 75,213 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 48,344 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,183 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,750 |
| Champions League Winners | 0 | - | 4.92 | 1,000,731 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,400 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,509 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,627 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,299 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,847 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,795 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,734 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,087 |
| Slavic Languages | 0 | - | 4.68 | 54,152 |
| Departments of France | 0 | - | 4.93 | 53,306 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,524 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,438 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,358 |
| England or Wales? | 0 | - | 4.94 | 45,491 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,254 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,162 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,577 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,130 |
| History of Russia Quiz | 0 | - | 4.49 | 31,844 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,641 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,635 |
| History of Italy | 0 | - | 4.55 | 31,900 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,442 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,567 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,093 |
| Australian Capitals | 0 | - | 4.92 | 62,657 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,072 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,243 |
| Capitals of French Regions | 0 | - | 4.45 | 16,019 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,878 |
| Capitals of German States | 0 | - | 4.74 | 28,894 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,201 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,756 |
| The Trojan War | 0 | - | 4.83 | 39,568 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,649 |
| Name that Greek Letter | 0 | - | 4.93 | 322,553 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,172 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,288 |
| Roman Emperors | 0 | - | 4.95 | 119,244 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,358 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,692 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,622 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,685 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,136 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,111 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,991 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,445 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,330 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,031 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,807 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,441 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,611 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,135 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,776 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,080 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,121 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,799 |
| Country Codes of Europe | 0 | - | 3.46 | 13,676 |
| Regions of France | 0 | - | 4.77 | 119,976 |
| France Immigration by Country | 0 | - | 4.72 | 76,201 |
| Famous Germans | 0 | - | 4.50 | 54,837 |
| German Groups of Things | 0 | - | 4.46 | 38,381 |
| Germany True or False? | 0 | - | 4.61 | 48,664 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,727 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,885 |
| Italy True or False? | 0 | - | 4.42 | 47,321 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,061 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,155 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,831 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,506 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,947 |
| Asia Map Quiz | 0 | - | 4.99 | 910,993 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,763 |
| European Physical Geography | 0 | - | 4.26 | 33,425 |
| Geography of Russia | 0 | - | 4.57 | 21,479 |
| History of Austria | 0 | - | 4.70 | 17,800 |
| Geography of the French Empire | 0 | - | 4.45 | 26,999 |
| The French Revolution | 0 | - | 4.46 | 23,862 |
| France Multiple Choice | 0 | - | 4.38 | 40,680 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,434 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,083 |
| The Vikings! | 0 | - | 4.46 | 28,287 |
| The Portuguese Empire | 0 | - | 4.58 | 12,028 |
| American to British Word Translation | 0 | - | 4.13 | 138,294 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,814 |
| Countries of Africa | 0 | - | 5.00 | 2,521,552 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,268 |
| African East Coast | 0 | - | 4.96 | 95,525 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,361 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,209 |
| Australia Map Quiz | 0 | - | 4.94 | 343,282 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,086 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,468 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,947 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,230 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,322 |
| The Only European Country ... | 0 | - | 4.91 | 215,153 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,330 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 27,895 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,857 |
| Presidents of France | 0 | - | 4.25 | 23,981 |
| History of France | 0 | - | 4.59 | 56,632 |
| Ancient Greek Words | 0 | - | 4.93 | 111,101 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 42,756 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,878 |
| Sweden True or False? | 0 | - | 4.56 | 40,177 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,992 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,444 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,463 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,064 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,139 |
| Champions League Top 4 | 0 | - | 4.77 | 134,965 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,202 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,141 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,649 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,231 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,901 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,688 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,845 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,762 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,219 |
| African Island Countries | 0 | - | 4.96 | 101,165 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,633 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,983 |
| Australian States and Territories | 0 | - | 4.96 | 141,372 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,144 |
| Australia True or False | 0 | - | 4.87 | 56,675 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,404 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,525 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,838 |
| North America Map Quiz | 0 | - | 4.98 | 246,567 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,547 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,547 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,868 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,684 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,827 |
| Sahel Countries on a Map | 0 | - | 4.99 | 21,123 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,439 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,856 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,105 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,725 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,676 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,360 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,089 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,430 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,525 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,650 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,159 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,707 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,446 |
| European Geography A-Z | 0 | - | 4.29 | 49,114 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,762 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,353 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,743 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,529 |
| Slavic Countries | 0 | - | 4.96 | 111,259 |
| Austria... or Australia? | 0 | - | 4.68 | 104,108 |
| Word Chain - France | 0 | - | 4.38 | 42,676 |
| Geography of Germany | 0 | - | 4.35 | 17,137 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,871 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,842 |
| Italian Foods | 0 | - | 4.31 | 72,456 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,150 |
| The Mafia Quiz | 0 | - | 4.46 | 23,252 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,161 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,836 |
| History of The Netherlands | 0 | - | 4.46 | 17,361 |
| History of Spain | 0 | - | 4.29 | 21,045 |
| Languages of Spain | 0 | - | 4.36 | 23,236 |
