| Prime Ministers of the UK | 0 | - | 4.95 | 441,505 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,590 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,157 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,104 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,582 |
| US States Quiz | 0 | - | 5.00 | 16,965,924 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,264 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,079 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,321 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,069 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,770 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,686 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,132 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,853 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,719,603 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,501 |
| The Dictator Files: Fidel Castro | 0 | - | 4.19 | 12,381 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,341 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,258 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,004 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,133 |
| US States with an Empty Map | 0 | - | 5.00 | 627,620 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,821 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,933 |
| The Dictator Files: Saddam Hussein | 0 | - | 4.48 | 15,913 |
| Rivers of the United States | 0 | - | 4.93 | 66,564 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,941 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,480 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,239 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,973 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,709 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,327 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,682 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,152 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,424 |
| National Founders | 0 | - | 4.40 | 83,935 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,492 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,785 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,818 |
| Arms Exports - United States | 0 | - | 4.77 | 62,648 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,206 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,555 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,890 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,042 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,338 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,678 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,732 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,638 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,727 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,404 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,361 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,118 |
| American Political Words | 0 | - | 4.39 | 23,456 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,207 |
| American Founding Fathers | 0 | - | 4.42 | 23,264 |
| People on Money - United States | 0 | - | 4.31 | 63,411 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,566 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,179 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,552,619 |
| U.S. States with the Most Billionaires | 0 | - | 4.51 | 50,534 |
| Top U.S. States in Crude Oil Production | 0 | - | 4.51 | 41,124 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,437 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,167 |
| Least Visited U.S. States by JetPunkers | 0 | - | 4.44 | 70,880 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,273 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,348 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,421 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,732 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,626 |
| Names of Generations | 0 | - | 4.09 | 45,415 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,409 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,763 |
| American History Quotes #1 | 0 | - | 4.37 | 96,170 |
| American History Quotes #2 | 0 | - | 4.38 | 41,486 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,318 |
| U.S. States by Unofficial Motto | 0 | - | 4.47 | 23,195 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,116 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,773 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,526 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,652 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,413 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,910 |
| Political Movements by Country | 0 | - | 4.46 | 72,710 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,829 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,265 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,654 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,927 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,845 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,776 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,100 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,887 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,354 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,125 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,309 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,902 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,034 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,052 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,499 |
| Animals in American History | 0 | - | 4.20 | 28,091 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,397,025 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,520 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,690,413 |
| U.S. States Richer than Their Neighbors | 0 | - | 4.43 | 27,428 |
| Most Visited U.S. States by JetPunkers | 0 | - | 4.30 | 44,637 |
| A Superlative for Every U.S. State | 0 | - | 4.44 | 28,187 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,339 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,866 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,700 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,629 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,336 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,165 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,832 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,567 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,527 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,278 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,735 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,492 |
| Name the English Monarchs | 0 | - | 4.91 | 505,537 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,757 |
| Countries of the Popes | 0 | - | 4.79 | 128,574 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,925 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,787 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,671 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,353 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,970 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,775 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,117 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 18,092 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,896 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,148 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,809 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,308 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,696 |
| State Quiz - Alaska | 0 | - | 4.42 | 42,224 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,862 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,128 |
| State Quiz - California | 0 | - | 4.69 | 64,701 |
| State Quiz - Florida | 0 | - | 4.47 | 62,529 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,974 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,626 |
| State Quiz - Georgia | 0 | - | 4.48 | 35,703 |
| Countries Closest to Hawaii | 0 | - | 4.55 | 53,892 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,508 |
| State Quiz - Kentucky | 0 | - | 4.42 | 32,589 |
| State Quiz - Minnesota | 0 | - | 4.41 | 38,944 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,331 |
| State Quiz - New York | 0 | - | 4.52 | 46,338 |
| State Quiz - New Jersey | 0 | - | 4.42 | 38,295 |
| State Quiz - Texas | 0 | - | 4.43 | 63,108 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,552 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 49,238 |
| State Quiz - Tennessee | 0 | - | 4.54 | 34,321 |
| State Quiz - Virginia | 0 | - | 4.53 | 40,446 |
| State Quiz - Washington | 0 | - | 4.45 | 36,588 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,439 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,676 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,884 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 38,530 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,340 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,081 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,019 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,850 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 88,150 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,547 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,315 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,108 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,233 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,901 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,060 |
| Tourist Attractions by U.S. State | 0 | - | 4.46 | 62,676 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,939 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 63,963 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,800 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,133 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,348 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,696,639 |
| O Canada Lyrics | 0 | - | 4.47 | 51,036 |
| Canada by Picture | 0 | - | 4.25 | 19,173 |
| Biggest Cities in Canada | 0 | - | 4.54 | 133,349 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,614 |
| The Trojan War | 0 | - | 4.83 | 39,937 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,839 |
| Name that Greek Letter | 0 | - | 4.93 | 324,718 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,711 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,500 |
| Roman Emperors | 0 | - | 4.95 | 120,931 |
| Hindu Countries | 0 | - | 4.87 | 50,482 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,426 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,457 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,428 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,149 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,328 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,574 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,465 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,624 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,766 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,522 |
| Panama Country Quiz | 0 | - | 4.61 | 25,908 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,544 |
| Topological Map of the USA Quiz | 0 | - | 4.49 | 29,234 |
