| US States Quiz | 0 | - | 5.00 | 16,932,394 |
| Canada A-Z | 0 | - | 4.73 | 32,906 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,177 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,966 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,995 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,139 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,970 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,467 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,930 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,743 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,199 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 333,634 |
| Pixelated United States Map | 0 | - | 4.88 | 94,521 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,053 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,073 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,356 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,189 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,798 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,732 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,430 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,751 |
| U.S. States By Population | 0 | - | 4.92 | 153,812 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,803 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,636 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,357 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,839 |
| US States with an Empty Map | 0 | - | 5.00 | 626,448 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,265 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,785 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,951 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,915 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,005 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,651 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,503 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,623 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,842 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,166 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,609 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,907 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,421 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,186 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,347 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,370 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,330 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,067 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,218 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,530 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,380 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,543 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,288 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,425 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,631 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,398 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,049 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,413 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,052 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,829 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,342 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,216 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,768 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 42,612 |
| Africa A-Z | 0 | - | 4.57 | 46,705 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,647 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,883 |
| Middle East A-Z | 0 | - | 4.47 | 46,171 |
| States of Mexico | 0 | - | 4.96 | 177,096 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,273 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,954 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,568 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,475 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 52,974 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,969 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,234 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,709 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,718 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,625 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,623 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,224 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,967 |
| United States Country Quiz | 0 | - | 4.43 | 101,814 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,982 |
| People on Money - United States | 0 | - | 4.31 | 63,385 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,484 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,686 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,204 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,090 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,965 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,057 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 59,981 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,428 |
| New England States | 0 | - | 4.51 | 59,851 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,924 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,050 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 82,953 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,148 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 41,025 |
| U.S. States by Borders | 0 | - | 4.62 | 35,396 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,568 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,179 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,285 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,861 |
| South America A-Z | 0 | - | 4.13 | 10,929 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,811 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,013 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,923 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,551 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,258 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,867 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,979 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,921 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,536 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,802 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,021 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,332 |
| European Geography A-Z | 0 | - | 4.29 | 49,386 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,490 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,347 |
| Flags of North and South America | 0 | - | 4.99 | 374,825 |
| Belize Country Quiz | 0 | - | 4.85 | 21,025 |
| Top U.S. Universities | 0 | - | 4.15 | 145,448 |
| Largest United States Airlines | 0 | - | 4.39 | 55,090 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,835 |
| U.S. States by Governor | 0 | - | 4.43 | 18,084 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,722 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,720 |
| Events in U.S. History | 0 | - | 4.41 | 28,733 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,709 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,685 |
| France A-Z | 0 | - | 4.16 | 38,282 |
| Switzerland A-Z | 0 | - | 4.45 | 25,700 |
| U.S. Geography by Letter - W | 0 | - | 3.86 | 23,622 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,638 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,202 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,321 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,329 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,750 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,408 |
| American Founding Fathers | 0 | - | 4.42 | 23,248 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,565 |
| California Groups of Things | 0 | - | 4.25 | 45,608 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,296 |
| New York Groups of Things | 0 | - | 4.37 | 68,443 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,527 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,147 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,936 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,544 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,584 |
| Flyover States | 0 | - | 4.52 | 29,547 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,192 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,401 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,138 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,526 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,601 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,690 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,538 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,880 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,196 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,366 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,583 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,894 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,758 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,095 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,496 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,882 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,436 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,104 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,481 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,282 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,098 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,350 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,936 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,963 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,301 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,874 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,526 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,036 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,499 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,157 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,077 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,900 |
| Countries that Start with A | 0 | - | 4.98 | 2,168,448 |
| Countries that Start with B | 0 | - | 4.95 | 2,299,618 |
| Countries that Start with C | 0 | - | 4.96 | 1,826,270 |
| Countries that Start with D | 0 | - | 4.96 | 712,686 |
| Countries that Start with E | 0 | - | 4.95 | 1,380,709 |
| Countries that Start with G | 0 | - | 4.97 | 1,506,972 |
| Countries that Start with H | 0 | - | 4.96 | 606,884 |
| Countries that Start with I | 0 | - | 4.92 | 1,291,096 |
| Countries that Start with J | 0 | - | 4.98 | 604,428 |
| Countries that Start with K | 0 | - | 4.97 | 818,017 |
| Countries that Start with L | 0 | - | 4.98 | 1,093,433 |
| Countries that Start with N | 0 | - | 4.93 | 1,120,487 |
| Countries that Start with P | 0 | - | 4.94 | 1,218,817 |
| Countries that Start with S | 0 | - | 4.98 | 1,758,602 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,867 |
| Countries that Start with U | 0 | - | 4.97 | 906,109 |
| Countries that Start with V | 0 | - | 4.98 | 610,493 |
| Countries that Start with F | 0 | - | 4.83 | 619,255 |
| Countries that Start with M | 0 | - | 4.97 | 1,384,690 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,451 |
