| Deadliest U.S. Wars | 0 | - | 4.89 | 190,375 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,038 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,513 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,379 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,274 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,775 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,918 |
| US States Quiz | 0 | - | 5.00 | 16,813,897 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,316 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,389 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,616 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 73,795 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 62,774 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,777 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,442 |
| U.S. Geography by Letter - P | 0 | - | 4.36 | 47,883 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,001 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 40,863 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,000 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,827 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,038 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 330,624 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,522 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,743 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,766 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,062 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 745,902 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,043 |
| California Cities A-Z | 0 | - | 4.06 | 17,161 |
| Texas A-Z | 0 | - | 4.18 | 16,350 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 29,902 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,289 |
| US States with an Empty Map | 0 | - | 5.00 | 622,405 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,603 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,769 |
| Rivers of the United States | 0 | - | 4.93 | 66,005 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,010 |
| Countries Closest to Maine | 0 | - | 4.85 | 66,911 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,257 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,714 |
| European Geography A-Z | 0 | - | 4.29 | 49,169 |
| Flags of Africa Quiz | 0 | - | 5.00 | 468,335 |
| Flags of North and South America | 0 | - | 4.99 | 371,351 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 52,539 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,536 |
| U.S. Geography by Letter - F | 0 | - | 3.87 | 44,792 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,258 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 30,674 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,134 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,663 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,641 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,651 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,961 |
| O Canada Lyrics | 0 | - | 4.47 | 50,907 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,779 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,670 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,238,152 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,394 |
| France A-Z | 0 | - | 4.16 | 38,147 |
| Flags of Asia Quiz | 0 | - | 4.99 | 610,593 |
| People on Money - United States | 0 | - | 4.31 | 63,309 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,959 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,531,710 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,137 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,700 |
| European Geography By Letter - A | 0 | - | 4.52 | 142,724 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,197 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,991 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,767 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,908 |
| European Geography By Letter - M | 0 | - | 4.67 | 129,844 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,046 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,366 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,079 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,668 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,951 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,210 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,107 |
| London A-Z | 0 | - | 4.10 | 40,732 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,027 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,579 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,321 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,778 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,253 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,898 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,695 |
| Countries that Start with A | 0 | - | 4.98 | 2,156,999 |
| Countries that Start with B | 0 | - | 4.95 | 2,289,039 |
| Countries that Start with C | 0 | - | 4.96 | 1,817,729 |
| Countries that Start with D | 0 | - | 4.96 | 706,622 |
| Countries that Start with E | 0 | - | 4.95 | 1,373,615 |
| Countries that Start with G | 0 | - | 4.97 | 1,499,234 |
| Countries that Start with H | 0 | - | 4.96 | 602,198 |
| Countries that Start with I | 0 | - | 4.92 | 1,285,212 |
| Countries that Start with J | 0 | - | 4.98 | 600,137 |
| Countries that Start with K | 0 | - | 4.97 | 813,265 |
| Countries that Start with L | 0 | - | 4.98 | 1,087,987 |
| Countries that Start with N | 0 | - | 4.93 | 1,114,906 |
| Countries that Start with P | 0 | - | 4.94 | 1,213,371 |
| Countries that Start with S | 0 | - | 4.98 | 1,751,087 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,793 |
| Countries that Start with U | 0 | - | 4.97 | 902,797 |
| Countries that Start with V | 0 | - | 4.98 | 607,904 |
| Countries that Start with F | 0 | - | 4.83 | 615,669 |
| Countries that Start with M | 0 | - | 4.97 | 1,378,567 |
| African Geography A-Z | 0 | - | 4.33 | 21,456 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,564 |
| Flags of Oceania | 0 | - | 5.00 | 257,719 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,058 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,768 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,791 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,404 |
| Monarchies of Europe | 0 | - | 4.90 | 97,859 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,931 |
| Monarchies of Asia | 0 | - | 4.97 | 70,917 |
| Asian Country Superlatives | 0 | - | 4.85 | 80,737 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,870 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,624 |
| U.S. Geography by Letter - W | 0 | - | 3.84 | 23,182 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,281 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,593 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,955 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,967 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,910 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,324 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,141 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,463 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,329 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,908 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 72,765 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,284 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,387,918 |
| US States by Borders in 30 Seconds | 0 | - | 4.67 | 2,675,270 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,382 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,233 |
| Countries Closest to Canada | 0 | - | 4.91 | 197,926 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,178 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,998 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,357 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,536 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,183 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,054 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,725 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,347 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,632 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,879 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,780 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,676 |
| German History A-Z | 0 | - | 4.49 | 24,552 |
| Italian History A-Z | 0 | - | 4.21 | 17,649 |
| Spanish History A-Z | 0 | - | 4.37 | 19,248 |
| Name the English Monarchs | 0 | - | 4.91 | 501,000 |
| Asian Geography By Letter - S | 0 | - | 4.17 | 56,024 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 51,846 |
| Asian Geography by Letter - G | 0 | - | 4.35 | 51,130 |
| Asian Geography by Letter - I | 0 | - | 4.36 | 67,684 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,643 |
| Asian Geography by Letter - N | 0 | - | 4.33 | 50,151 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,681 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,773 |
| Asian Geography By Letter - J | 0 | - | 4.25 | 34,626 |
| WWII Figures by Picture | 0 | - | 4.89 | 64,907 |
| The Bible A-Z | 0 | - | 4.29 | 59,661 |
| One Country By Letter By Continent | 0 | - | 5.00 | 123,140 |
| Capitals A-Z #2 | 0 | - | 4.45 | 26,743 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,380 |
| India A-Z | 0 | - | 4.42 | 34,068 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,394 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,473 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,098 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,388 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,557 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 41,901 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,550 |
| Arms Exports - United States | 0 | - | 4.75 | 62,187 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,493 |
| State Quiz - Alaska | 0 | - | 4.42 | 41,963 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,641 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,857 |
| State Quiz - California | 0 | - | 4.68 | 64,268 |
| State Quiz - Florida | 0 | - | 4.47 | 62,204 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,804 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,045 |
| State Quiz - Georgia | 0 | - | 4.48 | 35,484 |
| Countries Closest to Hawaii | 0 | - | 4.54 | 53,511 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,309 |
| State Quiz - Kentucky | 0 | - | 4.41 | 32,391 |
| State Quiz - Minnesota | 0 | - | 4.41 | 38,724 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,178 |
| State Quiz - New York | 0 | - | 4.52 | 45,993 |
| State Quiz - New Jersey | 0 | - | 4.42 | 38,066 |
| State Quiz - Texas | 0 | - | 4.43 | 62,758 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,251 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 48,892 |
| Pennsylvania A-Z | 0 | - | 4.11 | 7,535 |
| State Quiz - Tennessee | 0 | - | 4.54 | 34,087 |
| State Quiz - Virginia | 0 | - | 4.52 | 40,218 |
| State Quiz - Washington | 0 | - | 4.45 | 36,340 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,755 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.74 | 38,423 |
