| Name Every Beatles Song | 0 | - | 4.97 | 237,897 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,877 |
| Imagine Lyrics | 0 | - | 4.53 | 43,503 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,518 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,714 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,967 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,902 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,507 |
| States of Mexico | 0 | - | 4.96 | 177,680 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,462 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,825 |
| 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 | 54,565 |
| States of Brazil | 0 | - | 4.97 | 89,256 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,310 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,719,239 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,177 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,485 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,465 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,819 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,799 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,629 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,014 |
| First Lines of Beatles Songs | 0 | - | 4.36 | 47,110 |
| Beatles Songs by Synopsis | 0 | - | 4.31 | 33,163 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,801 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,466 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,586 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,960 |
| Name a Valid African Country | 0 | - | 4.98 | 154,819 |
| #1 Hits of the 2010s | 0 | - | 4.41 | 297,378 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,834 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,349 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,821 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,409 |
| 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 | 56,340 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,346 |
| Random American Countries on a Map | 0 | - | 4.96 | 100,028 |
| 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 | 193,382 |
| Viva la Vida Lyrics | 0 | - | 4.38 | 50,090 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,574 |
| Word Chain - Australia | 0 | - | 4.38 | 38,218 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,788 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,672 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,351 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,174 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,145 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,454 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,108 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,404 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,367 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,768 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,952 |
| German Groups of Things | 0 | - | 4.47 | 38,601 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,660 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,621 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,688 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,333 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,326 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,923 |
| Vietnam War Countries | 0 | - | 4.82 | 94,510 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,062 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,054 |
| Most Popular NBA Jerseys | 0 | - | 4.38 | 839,568 |
| 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 | 658,011 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,117 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,292 |
| Australian States and Territories | 0 | - | 4.96 | 142,639 |
| Australian Capitals | 0 | - | 4.92 | 62,806 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,449 |
| Australia Map Quiz | 0 | - | 4.95 | 345,797 |
| Australia True or False | 0 | - | 4.87 | 57,075 |
| Countries that Beat New Zealand | 0 | - | 4.70 | 26,740 |
| Flags of North and South America | 0 | - | 4.99 | 375,943 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,868 |
| 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 | 1,554,215 |
| South American Physical Geography | 0 | - | 4.58 | 18,387 |
| 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 | 904,237 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,815 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,075 |
| North America Map Quiz | 0 | - | 4.98 | 250,830 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,927 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,031 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,231 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,205 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,101 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,447 |
| Presidential Middle Names | 0 | - | 4.41 | 60,616 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,575 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,821 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,156 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,583 |
| 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 | 71,632 |
| 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 | 345,233 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,239 |
| 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 | 92,846 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,086 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,319 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,061 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,587 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,763 |
| Official European Union Languages | 0 | - | 4.97 | 239,462 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,469 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,830 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,229 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,767 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,302 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,852 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,271 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,624 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,251 |
| The Only European Country ... | 0 | - | 4.91 | 218,414 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,893 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,220 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,042 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,186 |
| European Geographic Groups of Four | 0 | - | 4.54 | 19,676 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,097 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,955 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,649 |
| Slavic Countries | 0 | - | 4.96 | 112,196 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,313 |
| Word Chain - France | 0 | - | 4.38 | 42,899 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,626 |
| 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 | 73,147 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,563 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,463 |
| Most Common First Names in Spain | 0 | - | 4.32 | 54,836 |
| Geography of Spain | 0 | - | 4.59 | 22,153 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,003 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,912 |
| British Groups of Things | 0 | - | 4.25 | 82,975 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,965 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,075 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,085 |
| Counties of England | 0 | - | 4.97 | 801,395 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,444 |
| 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 | 78,935 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,211 |
| Champions League Winners | 0 | - | 4.92 | 1,013,499 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,416 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,635 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,163 |
| Asia Map Quiz | 0 | - | 4.99 | 923,197 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,370 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,729 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,006 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,592 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,126 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,901 |
| 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 | 50,427 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,306 |
| Countries of the Middle East | 0 | - | 4.96 | 202,295 |
| 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 | 2,553,335 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,405 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,905 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,205 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,637 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,089 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,320 |
| 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 | 96,578 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,347 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,428 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,961 |
| African Island Countries | 0 | - | 4.96 | 102,265 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,325 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,573 |
