| European Countries by First 2 Letters | 0 | - | 4.96 | 489,157 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 203,432 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 249,172 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 144,951 |
| Count to 10 in Europe: Pro | 0 | - | 4.81 | 61,507 |
| Official European Union Languages | 0 | - | 4.98 | 202,756 |
| European Countries in their Native Language | 0 | - | 4.99 | 145,431 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 390,134 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 38,100 |
| Europe Geography Decoder | 0 | - | 4.88 | 63,919 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 39,223 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,327 |
| Beatles Songs Quiz | 0 | - | 4.95 | 210,622 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 275,558 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,199,769 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 21,075 |
| Foods in a Full English Breakfast | 0 | - | 4.42 | 74,233 |
| Champions League Winners | 0 | - | 4.91 | 876,766 |
| Europe Geography Quiz #1 | 0 | - | 4.53 | 67,439 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 67,909 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 66,588 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 58,184 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.90 | 80,359 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 287,603 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 118,117 |
| German Groups of Things | 0 | - | 4.43 | 36,200 |
| Germany Multiple Choice | 0 | - | 4.81 | 49,817 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 32,341 |
| Regions of Spain Quiz | 0 | - | 4.87 | 96,385 |
| Cantons of Switzerland | 0 | - | 4.97 | 40,939 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 277,746 |
| Asian Countries with the Shortest Names | 0 | - | 4.98 | 122,613 |
| Africa Geography Quiz #1 | 0 | - | 4.92 | 46,374 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 101,672 |
| Celtic Nations | 0 | - | 4.76 | 44,940 |
| Catholic Countries in Europe | 0 | - | 4.87 | 84,736 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 67,020 |
| Federal Subjects of Russia | 0 | - | 4.95 | 114,914 |
| France Immigration by Country | 0 | - | 4.81 | 69,667 |
| States of Germany | 0 | - | 4.93 | 125,769 |
| Germany Immigration by Country | 0 | - | 4.90 | 70,669 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,882 |
| Counties of Ireland | 0 | - | 4.90 | 161,791 |
| Regions of Italy | 0 | - | 4.89 | 61,389 |
| British Groups of Things | 0 | - | 4.26 | 80,596 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,837 |
| England or Wales? | 0 | - | 4.93 | 40,685 |
| All Champions League Teams Ever | 0 | - | 4.90 | 106,827 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.91 | 94,139 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 83,483 |
| Name a Valid Asian Country | 0 | - | 4.98 | 93,196 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 80,573 |
| Name a Valid African Country | 0 | - | 4.98 | 125,671 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 148,411 |
| Europe Geography Quiz #3 | 0 | - | 4.32 | 60,283 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,226 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 57,045 |
| Category Elimination - European Countries #1 | 0 | - | 4.88 | 77,581 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 191,531 |
| Name a Valid European Country #2 | 0 | - | 4.93 | 85,322 |
| Word Chain - France | 0 | - | 4.38 | 40,261 |
| Italian Foods | 0 | - | 4.25 | 65,020 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,846 |
| Spanish Immigration by Country | 0 | - | 4.63 | 52,294 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,776 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 66,071 |
| Wonderwall Lyrics | 0 | - | 4.22 | 69,166 |
| Best-Selling British Musical Acts | 0 | - | 4.47 | 43,820 |
| A Quiz About The Beatles | 0 | - | 4.57 | 43,254 |
| Countries that Beat the United States | 0 | - | 4.92 | 147,201 |
| Countries that Beat Canada | 0 | - | 4.91 | 78,813 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,698 |
| Word Scramble - European Countries | 0 | - | 4.72 | 114,736 |
| Top 20 Football Clubs in Europe | 0 | - | 4.50 | 88,705 |
| Slavic Languages | 0 | - | 4.63 | 49,164 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 589,241 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 86,560 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 72,123 |
| Roman Emperors | 0 | - | 4.95 | 96,921 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,589 |
| Most Common Last Names in Sweden | 0 | - | 4.43 | 14,177 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 75,050 |
| Geography of Spain | 0 | - | 4.52 | 20,482 |
| Word Chain - United Kingdom | 0 | - | 4.04 | 28,115 |
| Members of the British Royal Family | 0 | - | 4.11 | 109,633 |
| Name a Valid English City | 0 | - | 4.16 | 15,429 |
| Imagine Lyrics | 0 | - | 4.49 | 40,090 |
| Beatles Songs by Synonyms | 0 | - | 4.66 | 36,157 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 23,242 |
| Top European Languages on a Map | 0 | - | 4.76 | 119,350 |
| Russia Multiple Choice | 0 | - | 4.55 | 38,355 |
| Word Chain - Germany | 0 | - | 4.30 | 21,247 |
| Olympian Gods Quiz | 0 | - | 4.96 | 459,709 |
| Name that Greek Letter | 0 | - | 4.94 | 297,498 |
| Ancient Greek Words | 0 | - | 4.90 | 98,598 |
| Word Chain - Italy | 0 | - | 4.08 | 22,107 |
| Italy Multiple Choice | 0 | - | 4.74 | 94,869 |
| #1 Hits of the 2010s | 0 | - | 4.40 | 272,284 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 402,581 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 49,272 |
| Provinces of the Netherlands | 0 | - | 4.65 | 33,769 |
| 100 Greatest Britons Quiz | 0 | - | 4.43 | 46,172 |
| British to American Food Translation. | 0 | - | 3.47 | 50,566 |
| British Acronyms | 0 | - | 4.41 | 43,569 |
| Fictional Characters from Great Britain | 0 | - | 4.10 | 31,297 |
| Robin Hood Quiz | 0 | - | 4.03 | 8,077 |
| Beatles Lyrics First Names | 0 | - | 4.32 | 31,946 |
| Asia Geography Quiz #1 | 0 | - | 4.79 | 51,150 |
| Asia Geography Quiz #2 | 0 | - | 4.63 | 45,668 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 257,473 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 247,276 |
| European Geography By Letter - A | 0 | - | 4.55 | 125,201 |
| European Geography By Letter - B #1 | 0 | - | 4.75 | 104,210 |
| European Geography By Letter - C | 0 | - | 4.43 | 105,561 |
| European Geography By Letter - D | 0 | - | 4.51 | 100,148 |
| European Geography By Letter - L | 0 | - | 4.51 | 105,711 |
| European Geography By Letter - M | 0 | - | 4.55 | 115,094 |
| European Geography By Letter - P | 0 | - | 4.79 | 90,240 |
| European Geography By Letter - N | 0 | - | 4.42 | 94,062 |
| European Geography By Letter - V | 0 | - | 4.45 | 86,909 |
| Europe Map Quiz | 0 | - | 5.00 | 4,330,052 |
| European Geography By Letter - S #1 | 0 | - | 4.58 | 94,369 |
| European Geography By Letter - B #2 | 0 | - | 4.74 | 62,701 |
| Four Letter European Geography #1 | 0 | - | 4.46 | 4,394 |
| Four Letter European Geography #2 | 0 | - | 4.64 | 4,063 |
| Regions of France | 0 | - | 4.63 | 101,886 |
| Capitals of German States | 0 | - | 4.70 | 27,353 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 20,321 |
| Germany True or False? | 0 | - | 4.60 | 44,861 |
| Largest Islands of Greece | 0 | - | 4.58 | 40,565 |
| Can You Name All Of One Direction's Songs? | 0 | - | 4.46 | 89,497 |
| Capitals of Italian Regions | 0 | - | 4.53 | 26,295 |
| Most Popular NBA Jerseys | 0 | - | 4.34 | 770,167 |
| Byzantine History | 0 | - | 4.87 | 26,415 |
| History of The Netherlands | 0 | - | 4.43 | 15,875 |
| Famous Nordic People | 0 | - | 4.41 | 10,704 |
| The Vikings! | 0 | - | 4.45 | 27,227 |
| Sweden Immigration by Country | 0 | - | 4.66 | 42,756 |
| The Portuguese Empire | 0 | - | 4.54 | 11,379 |
| Canary Islands | 0 | - | 4.61 | 16,609 |
| Real Madrid 2010's Starting XI | 0 | - | 4.85 | 52,984 |
| Switzerland Immigration by Country | 0 | - | 4.76 | 22,274 |
| British Spellings Quiz | 0 | - | 4.04 | 94,938 |
| Languages of the United Kingdom | 0 | - | 4.10 | 38,519 |
| United Kingdom A-Z | 0 | - | 4.53 | 81,390 |
| British Monopoly Board | 0 | - | 4.51 | 39,381 |
| Geography of Scotland | 0 | - | 4.62 | 19,739 |
| Title in the Lyrics #2 - The Beatles | 0 | - | 4.52 | 87,284 |
| First Lines of Beatles Songs | 0 | - | 4.39 | 43,097 |
| Viva la Vida Lyrics | 0 | - | 4.37 | 36,574 |
| Champions League Top 4 | 0 | - | 4.76 | 108,689 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,352,163 |
| Asia Map Quiz | 0 | - | 4.99 | 794,950 |
| Asia Geography Quiz #3 | 0 | - | 4.51 | 30,830 |
| Asian Last Names in the United States | 0 | - | 4.41 | 43,573 |
| Africa Map Quiz | 0 | - | 5.00 | 1,952,991 |
| Africa Geography Quiz #2 | 0 | - | 4.58 | 31,282 |
| Oceania Map Quiz | 0 | - | 4.98 | 573,177 |
| Oceania Geography Quiz | 0 | - | 4.54 | 20,946 |
| Australian Capitals | 0 | - | 4.92 | 61,024 |
| Word Chain - Australia | 0 | - | 4.39 | 36,398 |
| Hispanic Last Names in the U.S. | 0 | - | 4.29 | 52,819 |
| South American Geography Quiz #2 | 0 | - | 4.65 | 37,209 |
| U.S. State Nicknames Quiz | 0 | - | 4.48 | 46,535 |
| United States Map Quiz | 0 | - | 4.98 | 3,922,604 |
| European Geography By Letter - E | 0 | - | 4.21 | 106,046 |
| European Geography By Letter - F | 0 | - | 4.16 | 85,769 |
| European Geography By Letter - H | 0 | - | 4.31 | 89,400 |
| European Geography By Letter - G | 0 | - | 4.25 | 95,605 |
| European Geography By Letter - I | 0 | - | 4.10 | 89,236 |
| European Geography By Letter - K | 0 | - | 4.17 | 64,914 |
| European Geography By Letter - O | 0 | - | 4.28 | 58,124 |
| European Geography By Letter - R | 0 | - | 4.40 | 87,980 |
| European Geography by Letter - W | 0 | - | 4.22 | 78,585 |
| European Geography By Letter - T | 0 | - | 4.40 | 71,257 |
| European Physical Geography | 0 | - | 4.20 | 32,045 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 47,099 |
| European Geography A-Z | 0 | - | 4.36 | 45,730 |
| History of Russia Quiz | 0 | - | 4.48 | 30,025 |
| Geography of Russia | 0 | - | 4.54 | 20,289 |
| Slovakia... or Slovenia? | 0 | - | 4.79 | 39,907 |
| History of Austria | 0 | - | 4.69 | 16,500 |
| Austria... or Australia? | 0 | - | 4.79 | 98,641 |
| French Foods | 0 | - | 3.94 | 26,510 |
| Geography of the French Empire | 0 | - | 4.49 | 25,540 |
| The French Revolution | 0 | - | 4.45 | 22,076 |
| France Multiple Choice | 0 | - | 4.40 | 38,877 |
| History of France Quiz | 0 | - | 4.55 | 39,907 |
| Famous Germans | 0 | - | 4.39 | 35,303 |
| Ancient Greek Trivia | 0 | - | 4.55 | 63,679 |
| Figures from Greek Mythology | 0 | - | 4.92 | 170,341 |
| History of Ireland Quiz | 0 | - | 4.44 | 19,078 |
| Famous Italians | 0 | - | 4.40 | 66,961 |
| Most Popular Types of Pasta | 0 | - | 3.91 | 29,832 |
| Famous Italian-Americans | 0 | - | 4.12 | 7,307 |
| History of Italy | 0 | - | 4.49 | 29,947 |
| Countries Italy Declared War On | 0 | - | 4.76 | 40,254 |
| The Mafia Quiz | 0 | - | 4.47 | 21,730 |
| Best Selling Artists by Letter Quiz | 0 | - | 4.10 | 40,699 |
| Most Popular NFL Jerseys | 0 | - | 4.13 | 211,882 |
