| Prime Ministers of the UK | 0 | - | 4.95 | 439,577 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,936 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,973 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,007 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,548 |
| US States Quiz | 0 | - | 5.00 | 16,896,753 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,243 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,048 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,408 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,863 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,610 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,633 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,095 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,822 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,703,807 |
| Country by Photo of its Leader | 0 | - | 4.72 | 124,179 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,207 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,903 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,570 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,727 |
| US States with an Empty Map | 0 | - | 5.00 | 625,322 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,224 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,351 |
| Rivers of the United States | 0 | - | 4.93 | 66,261 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,459 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,190 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,218 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,575 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,758 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,783 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,214 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,949 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,124 |
| National Founders | 0 | - | 4.40 | 83,857 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,375 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 51,430 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,693 |
| Arms Exports - United States | 0 | - | 4.77 | 62,468 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,173 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,532 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,870 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,786 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,122 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,552 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,435 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,556 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,657 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,330 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,182 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,083 |
| American Political Words | 0 | - | 4.39 | 23,435 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,080 |
| American Founding Fathers | 0 | - | 4.42 | 23,233 |
| People on Money - United States | 0 | - | 4.31 | 63,355 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,486 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,089 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,542,268 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,427 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,094 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,364 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,118 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,706 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,139 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,123 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,212 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,694 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,610 |
| Names of Generations | 0 | - | 4.09 | 45,068 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,065 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,382 |
| American History Quotes #1 | 0 | - | 4.37 | 96,067 |
| American History Quotes #2 | 0 | - | 4.38 | 41,426 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,263 |
| U.S. States by Unofficial Motto | 0 | - | 4.47 | 23,138 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,575 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 82,755 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,876 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,179 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,018 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,842 |
| Political Movements by Country | 0 | - | 4.46 | 72,580 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,976 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,694 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,354 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,707 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,469 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,906 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,488 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,767 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,434 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,386 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,548 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,444 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,338 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,541 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,942 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,268 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,808 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,909 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,370 |
| Animals in American History | 0 | - | 4.20 | 28,045 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,392,791 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,418 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,683,606 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,383 |
| Most Visited U.S. States by JetPunkers | 0 | - | 4.30 | 44,556 |
| A Superlative for Every U.S. State | 0 | - | 4.44 | 28,105 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,259 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,830 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 18,013 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,531 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,874 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,607 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,891 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,212 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,372 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,801 |
| Name the English Monarchs | 0 | - | 4.91 | 503,361 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,326 |
| Countries of the Popes | 0 | - | 4.79 | 128,233 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,807 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,342 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,026 |
| Hindu Countries | 0 | - | 4.86 | 50,230 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,649 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,630 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,628 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,213 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,555 |
| State Quiz - Alaska | 0 | - | 4.42 | 42,106 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,754 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,996 |
| State Quiz - California | 0 | - | 4.69 | 64,494 |
| State Quiz - Florida | 0 | - | 4.47 | 62,392 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,914 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,357 |
| State Quiz - Georgia | 0 | - | 4.48 | 35,607 |
| Countries Closest to Hawaii | 0 | - | 4.55 | 53,703 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,408 |
| State Quiz - Kentucky | 0 | - | 4.42 | 32,505 |
| State Quiz - Minnesota | 0 | - | 4.41 | 38,845 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,255 |
| State Quiz - New York | 0 | - | 4.52 | 46,170 |
| State Quiz - New Jersey | 0 | - | 4.42 | 38,196 |
| State Quiz - Texas | 0 | - | 4.43 | 62,923 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,404 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 49,068 |
| State Quiz - Tennessee | 0 | - | 4.54 | 34,212 |
| State Quiz - Virginia | 0 | - | 4.53 | 40,338 |
| State Quiz - Washington | 0 | - | 4.45 | 36,468 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,134 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,626 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,814 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.74 | 38,475 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,158 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,966 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,842 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,784 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 87,936 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,509 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,087 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,055 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,063 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,823 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,874 |
| Tourist Attractions by U.S. State | 0 | - | 4.46 | 62,624 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,804 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,809 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,720 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,931 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,318 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,691,356 |
| O Canada Lyrics | 0 | - | 4.47 | 50,968 |
| Canada by Picture | 0 | - | 4.25 | 18,972 |
| Biggest Cities in Canada | 0 | - | 4.54 | 132,968 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,529 |
| The Trojan War | 0 | - | 4.83 | 39,767 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,188 |
| Name that Greek Letter | 0 | - | 4.93 | 323,996 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,025 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,597 |
| Roman Emperors | 0 | - | 4.95 | 120,227 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,125 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,500 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,124 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,138 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,132 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,826 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,953 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,357 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,184 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,346 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,200 |
| Panama Country Quiz | 0 | - | 4.61 | 25,830 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,457 |
| Topological Map of the USA Quiz | 0 | - | 4.49 | 29,136 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,822 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,608 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 93,898 |
| Presidential Middle Names | 0 | - | 4.41 | 60,347 |
