| Name Every Beatles Song | 0 | - | 4.97 | 233,926 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,095 |
| Imagine Lyrics | 0 | - | 4.53 | 43,051 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,987 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,290 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,269 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,293 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,022 |
| Name a Valid African Country | 0 | - | 4.98 | 152,861 |
| States of Mexico | 0 | - | 4.95 | 173,184 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,182 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,461 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,092 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,860 |
| States of Brazil | 0 | - | 4.98 | 86,282 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,338 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,081 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,650,800 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,344 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,049 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,014 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,906 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,467 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,124 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,499 |
| First Lines of Beatles Songs | 0 | - | 4.36 | 46,573 |
| Beatles Songs by Synopsis | 0 | - | 4.31 | 32,666 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,627 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,491 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,991 |
| #1 Hits of the 2010s | 0 | - | 4.41 | 294,092 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,609 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,455 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,809 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,825 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,308 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,622 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,141 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,845 |
| Random American Countries on a Map | 0 | - | 4.96 | 98,568 |
| South America Flags Map Quiz | 0 | - | 4.95 | 86,460 |
| Mexican Foods | 0 | - | 4.07 | 14,606 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,965 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,689 |
| Viva la Vida Lyrics | 0 | - | 4.37 | 49,531 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,249 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,793 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,404 |
| Word Chain - Australia | 0 | - | 4.37 | 38,008 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,754 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,246 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,678 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,586 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,971 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,971 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,597 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,924 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,962 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,152 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,203 |
| German Groups of Things | 0 | - | 4.46 | 38,295 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,895 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,312 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,310 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,142 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,011 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,490 |
| Vietnam War Countries | 0 | - | 4.83 | 93,566 |
| Most Popular NBA Jerseys | 0 | - | 4.38 | 832,166 |
| Countries that Beat North Korea | 0 | - | 4.43 | 34,129 |
| Countries that Beat India | 0 | - | 4.41 | 62,563 |
| Countries of Africa | 0 | - | 5.00 | 2,505,851 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,403 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,696 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,383 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,761 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,536 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,510 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,191 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,459 |
| African East Coast | 0 | - | 4.96 | 94,975 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,989 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,851 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,320 |
| African Island Countries | 0 | - | 4.96 | 100,706 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,532 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,620 |
| Topological Map of Africa Quiz | 0 | - | 4.80 | 21,117 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,034 |
| Countries that Beat D.R. Congo | 0 | - | 4.74 | 41,495 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,802 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,971 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,746 |
| Australian States and Territories | 0 | - | 4.95 | 140,598 |
| Australian Capitals | 0 | - | 4.92 | 62,587 |
| Australian Immigration by Country | 0 | - | 4.81 | 76,998 |
| Australia Map Quiz | 0 | - | 4.94 | 342,340 |
| Australia True or False | 0 | - | 4.87 | 56,485 |
| Countries that Beat New Zealand | 0 | - | 4.69 | 26,154 |
| Flags of North and South America | 0 | - | 4.99 | 366,334 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,126 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,114 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,021 |
| History of Mexico | 0 | - | 4.58 | 15,224 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,670 |
| South American Physical Geography | 0 | - | 4.58 | 18,264 |
| Word Chain - South America | 0 | - | 4.51 | 23,758 |
| Countries that Beat Brazil | 0 | - | 4.49 | 67,840 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,597 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,610 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,573 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,938 |
| North America Map Quiz | 0 | - | 4.98 | 244,166 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,358 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,452 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,875 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,825 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,889 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,401 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,944 |
| Presidential Middle Names | 0 | - | 4.41 | 59,659 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,691 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 93,769 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,721 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,149 |
| The American Revolution | 0 | - | 4.52 | 54,042 |
| California Groups of Things | 0 | - | 4.25 | 45,260 |
| New York Groups of Things | 0 | - | 4.38 | 59,919 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,224 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,429 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,176 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,533 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,593 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,570 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,964 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,165 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,469 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,836 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,183 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,547 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,171 |
| Official European Union Languages | 0 | - | 4.97 | 236,419 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,635 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,382 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,506 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,421 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,637 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,237 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,163 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,429 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,981 |
| The Only European Country ... | 0 | - | 4.91 | 213,623 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,812 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,664 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,690 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,411 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,239 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,193 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,096 |
| Slavic Countries | 0 | - | 4.96 | 110,803 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,085 |
| Word Chain - France | 0 | - | 4.38 | 42,570 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,030 |
| Countries that Beat Greece | 0 | - | 4.52 | 48,566 |
| Italian Foods | 0 | - | 4.30 | 72,138 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,131 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,279 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,465 |
| Geography of Spain | 0 | - | 4.59 | 21,946 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,544 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,428 |
| British Groups of Things | 0 | - | 4.25 | 82,660 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,016 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,905 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,942 |
| Counties of England | 0 | - | 4.97 | 788,709 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,783 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,424 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,670 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,528 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,057 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,489 |
| Champions League Winners | 0 | - | 4.92 | 995,604 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,936 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,309 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,890 |
| Asia Map Quiz | 0 | - | 4.99 | 906,364 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,704 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,348 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,168 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,629 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,411 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,632 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,379 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,687 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,083 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,371 |
| Countries of the Middle East | 0 | - | 4.96 | 198,788 |
| Countries that Beat Saudi Arabia | 0 | - | 4.74 | 46,078 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,228 |
