| Name Every Beatles Song | 0 | - | 4.97 | 233,947 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,264 |
| Imagine Lyrics | 0 | - | 4.53 | 43,054 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,988 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,299 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,271 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,299 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,038 |
| Name a Valid African Country | 0 | - | 4.98 | 152,879 |
| States of Mexico | 0 | - | 4.95 | 173,214 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,184 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,461 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,104 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,891 |
| States of Brazil | 0 | - | 4.98 | 86,298 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,340 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,092 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,651,514 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,381 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,076 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,049 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,919 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,527 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,140 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,503 |
| First Lines of Beatles Songs | 0 | - | 4.36 | 46,576 |
| Beatles Songs by Synopsis | 0 | - | 4.31 | 32,669 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,643 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,504 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,003 |
| #1 Hits of the 2010s | 0 | - | 4.41 | 294,124 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,609 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,479 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,819 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,836 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,315 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,632 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,153 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,847 |
| Random American Countries on a Map | 0 | - | 4.96 | 98,579 |
| South America Flags Map Quiz | 0 | - | 4.95 | 86,501 |
| Mexican Foods | 0 | - | 4.07 | 14,606 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,968 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,712 |
| Viva la Vida Lyrics | 0 | - | 4.37 | 49,536 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,261 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,794 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,425 |
| 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 | 50,249 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,683 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,589 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,392 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,976 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,601 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,928 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,964 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,181 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,246 |
| German Groups of Things | 0 | - | 4.46 | 38,295 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,910 |
| Asia Geography Quiz #1 | 0 | - | 4.78 | 53,314 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,312 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,143 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,035 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,493 |
| Vietnam War Countries | 0 | - | 4.83 | 93,574 |
| Most Popular NBA Jerseys | 0 | - | 4.38 | 832,279 |
| Countries that Beat North Korea | 0 | - | 4.43 | 34,132 |
| Countries that Beat India | 0 | - | 4.41 | 62,565 |
| Countries of Africa | 0 | - | 5.00 | 2,506,141 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,412 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,804 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,544 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,766 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,552 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,520 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,199 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,463 |
| African East Coast | 0 | - | 4.96 | 94,985 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,006 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,876 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,336 |
| African Island Countries | 0 | - | 4.96 | 100,724 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,555 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,651 |
| Topological Map of Africa Quiz | 0 | - | 4.80 | 21,120 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,041 |
| Countries that Beat D.R. Congo | 0 | - | 4.74 | 41,497 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,909 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,973 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,749 |
| Australian States and Territories | 0 | - | 4.95 | 140,601 |
| Australian Capitals | 0 | - | 4.92 | 62,589 |
| Australian Immigration by Country | 0 | - | 4.81 | 76,999 |
| Australia Map Quiz | 0 | - | 4.94 | 342,358 |
| Australia True or False | 0 | - | 4.87 | 56,487 |
| Countries that Beat New Zealand | 0 | - | 4.69 | 26,154 |
| Flags of North and South America | 0 | - | 4.99 | 366,519 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,129 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,124 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,090 |
| History of Mexico | 0 | - | 4.58 | 15,227 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,767 |
| South American Physical Geography | 0 | - | 4.58 | 18,265 |
| Word Chain - South America | 0 | - | 4.51 | 23,758 |
| Countries that Beat Brazil | 0 | - | 4.49 | 67,847 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,598 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,651 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,573 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,089 |
| North America Map Quiz | 0 | - | 4.98 | 244,225 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,365 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,721 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,876 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,846 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,896 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,419 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,959 |
| Presidential Middle Names | 0 | - | 4.41 | 59,664 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,698 |
| Assassinated U.S. Presidents | 0 | - | 4.61 | 93,775 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,722 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,152 |
| The American Revolution | 0 | - | 4.52 | 54,044 |
| California Groups of Things | 0 | - | 4.25 | 45,261 |
| New York Groups of Things | 0 | - | 4.38 | 59,922 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,227 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,442 |
| U.S. Civil War Decoder | 0 | - | 4.14 | 25,179 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,603 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,695 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,579 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,994 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,172 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,474 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,857 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,419 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,553 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,196 |
| Official European Union Languages | 0 | - | 4.97 | 236,438 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,645 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,384 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,511 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,441 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,651 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,246 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,183 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,430 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,011 |
| The Only European Country ... | 0 | - | 4.91 | 213,659 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,816 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,683 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,720 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,428 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,260 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,202 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,148 |
| Slavic Countries | 0 | - | 4.96 | 110,810 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,087 |
| Word Chain - France | 0 | - | 4.38 | 42,570 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,030 |
| Countries that Beat Greece | 0 | - | 4.52 | 48,569 |
| Italian Foods | 0 | - | 4.30 | 72,142 |
| 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 | 45,466 |
| Geography of Spain | 0 | - | 4.59 | 21,949 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,547 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,430 |
| British Groups of Things | 0 | - | 4.25 | 82,662 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,027 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,905 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,942 |
| Counties of England | 0 | - | 4.97 | 788,757 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,786 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,426 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,674 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,534 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,066 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,566 |
| Champions League Winners | 0 | - | 4.92 | 995,725 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,047 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,314 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,205 |
| Asia Map Quiz | 0 | - | 4.99 | 906,505 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,715 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,360 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,187 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,647 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,424 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,637 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,399 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,703 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,090 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,508 |
| Countries of the Middle East | 0 | - | 4.96 | 198,807 |
| Countries that Beat Saudi Arabia | 0 | - | 4.74 | 46,080 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,230 |
