| Name Every Beatles Song | 0 | - | 4.97 | 237,898 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,884 |
| Imagine Lyrics | 0 | - | 4.53 | 43,503 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,518 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,715 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,969 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,904 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,508 |
| States of Mexico | 0 | - | 4.96 | 177,683 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,469 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,827 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,326 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,566 |
| States of Brazil | 0 | - | 4.97 | 89,270 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,310 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,719,275 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,185 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,487 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,468 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,821 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,804 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,631 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,015 |
| First Lines of Beatles Songs | 0 | - | 4.36 | 47,110 |
| Beatles Songs by Synopsis | 0 | - | 4.31 | 33,164 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,807 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,469 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,587 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,962 |
| Name a Valid African Country | 0 | - | 4.98 | 154,820 |
| #1 Hits of the 2010s | 0 | - | 4.41 | 297,380 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,834 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,351 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,822 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,412 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,150 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,738 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,341 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,346 |
| Random American Countries on a Map | 0 | - | 4.96 | 100,031 |
| South America Flags Map Quiz | 0 | - | 4.95 | 88,694 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,489 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,385 |
| Viva la Vida Lyrics | 0 | - | 4.38 | 50,091 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,576 |
| Word Chain - Australia | 0 | - | 4.38 | 38,218 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,788 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,673 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,353 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,175 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,177 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,455 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,109 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,405 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,369 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,770 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,954 |
| German Groups of Things | 0 | - | 4.47 | 38,601 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,661 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,622 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,690 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,335 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,330 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,923 |
| Vietnam War Countries | 0 | - | 4.82 | 94,511 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,063 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,057 |
| Most Popular NBA Jerseys | 0 | - | 4.38 | 839,573 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,619 |
| Countries that Beat D.R. Congo | 0 | - | 4.75 | 41,961 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,015 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,117 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,292 |
| Australian States and Territories | 0 | - | 4.96 | 142,640 |
| Australian Capitals | 0 | - | 4.92 | 62,806 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,449 |
| Australia Map Quiz | 0 | - | 4.95 | 345,800 |
| Australia True or False | 0 | - | 4.87 | 57,076 |
| Countries that Beat New Zealand | 0 | - | 4.70 | 26,740 |
| Flags of North and South America | 0 | - | 4.99 | 375,949 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,869 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,653 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,414 |
| History of Mexico | 0 | - | 4.52 | 15,357 |
| South America Map Quiz | 0 | - | 5.00 | 1,554,228 |
| South American Physical Geography | 0 | - | 4.58 | 18,388 |
| Word Chain - South America | 0 | - | 4.51 | 23,975 |
| Countries that Beat Brazil | 0 | - | 4.49 | 69,077 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,761 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,240 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,815 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,086 |
| North America Map Quiz | 0 | - | 4.98 | 250,845 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,927 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,046 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,231 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,208 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,105 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,447 |
| Presidential Middle Names | 0 | - | 4.41 | 60,618 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,575 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,822 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,158 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,586 |
| The American Revolution | 0 | - | 4.52 | 54,326 |
| California Groups of Things | 0 | - | 4.26 | 45,710 |
| New York Groups of Things | 0 | - | 4.39 | 71,636 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,564 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,334 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,328 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,241 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,249 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,472 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,485 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,847 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,092 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,322 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,082 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,587 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,771 |
| Official European Union Languages | 0 | - | 4.97 | 239,463 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,471 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,831 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,231 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,773 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,304 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,855 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,276 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,624 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,259 |
| The Only European Country ... | 0 | - | 4.91 | 218,420 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,894 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,223 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,043 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,188 |
| European Geographic Groups of Four | 0 | - | 4.54 | 19,686 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,098 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,958 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,651 |
| Slavic Countries | 0 | - | 4.96 | 112,197 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,313 |
| Word Chain - France | 0 | - | 4.38 | 42,899 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,627 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,344 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,415 |
| Italian Foods | 0 | - | 4.30 | 73,148 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,564 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,463 |
| Most Common First Names in Spain | 0 | - | 4.32 | 54,842 |
| Geography of Spain | 0 | - | 4.59 | 22,154 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,003 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,913 |
| British Groups of Things | 0 | - | 4.25 | 82,975 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,969 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,075 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,085 |
| Counties of England | 0 | - | 4.97 | 801,407 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,445 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,014 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,018 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,273 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,936 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,221 |
| Champions League Winners | 0 | - | 4.92 | 1,013,510 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,423 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,635 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,164 |
| Asia Map Quiz | 0 | - | 4.99 | 923,200 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,370 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,730 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,007 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,594 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,126 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,902 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,697 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,282 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.91 | 50,428 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,312 |
| Countries of the Middle East | 0 | - | 4.96 | 202,298 |
| Countries that Beat Saudi Arabia | 0 | - | 4.74 | 46,547 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,682 |
| Countries that Beat Japan | 0 | - | 4.41 | 68,285 |
| Countries that Beat North Korea | 0 | - | 4.43 | 34,620 |
| Countries that Beat India | 0 | - | 4.42 | 63,242 |
| Countries of Africa | 0 | - | 5.00 | 2,553,376 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,409 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,927 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,215 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,639 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,091 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,321 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,092 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,978 |
| African East Coast | 0 | - | 4.96 | 96,580 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,351 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,428 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,962 |
| African Island Countries | 0 | - | 4.96 | 102,265 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,327 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,573 |
