| US States Quiz | 0 | - | 5.00 | 16,795,462 |
| Canada A-Z | 0 | - | 4.73 | 32,737 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,630 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,135 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,884 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,577 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,724 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 65,958 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,264 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,006 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,489 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 330,214 |
| Pixelated United States Map | 0 | - | 4.89 | 93,892 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,104 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,345 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,153 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,449 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,000 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,009 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,479 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,695 |
| U.S. States By Population | 0 | - | 4.92 | 152,857 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,989 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,220 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,025 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,340 |
| US States with an Empty Map | 0 | - | 5.00 | 621,866 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,011 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,946 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,271 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,190 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,468 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,244 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,481 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,636 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,075 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,589 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,740 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,464 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,024 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,501 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 73,766 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 62,737 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,734 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,408 |
| U.S. Geography by Letter - P | 0 | - | 4.36 | 47,851 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 52,969 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 40,830 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 38,963 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,778 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,033 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,302 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,179 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,623 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,739 |
| Africa A-Z | 0 | - | 4.57 | 46,518 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,939 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 745,513 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,658 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,198 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,247 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,310 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,933 |
| Middle East A-Z | 0 | - | 4.47 | 45,935 |
| States of Mexico | 0 | - | 4.95 | 174,994 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,269 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,500 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,082 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 52,516 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,511 |
| U.S. Geography by Letter - F | 0 | - | 3.87 | 44,770 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,223 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 30,638 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,414 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,530 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,143 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,853 |
| United States Country Quiz | 0 | - | 4.43 | 101,135 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,773 |
| People on Money - United States | 0 | - | 4.31 | 63,286 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,207 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,827 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,472 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,826 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,561 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,873 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,771 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,262 |
| New England States | 0 | - | 4.51 | 59,764 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,677 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,959 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,600 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,861 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,815 |
| U.S. States by Borders | 0 | - | 4.61 | 35,220 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,380 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,863 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,105 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,655 |
| South America A-Z | 0 | - | 4.13 | 10,874 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,709 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,796 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,637 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,390 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,121 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,716 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,622 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,837 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,443 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,714 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,296 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,269 |
| European Geography A-Z | 0 | - | 4.29 | 49,132 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 67,565 |
| Flags of North and South America | 0 | - | 4.99 | 370,749 |
| Belize Country Quiz | 0 | - | 4.85 | 20,897 |
| Top U.S. Universities | 0 | - | 4.15 | 144,610 |
| Largest United States Airlines | 0 | - | 4.39 | 54,943 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,578 |
| U.S. States by Governor | 0 | - | 4.43 | 18,026 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,634 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,617 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,149 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,346 |
| France A-Z | 0 | - | 4.16 | 38,121 |
| Switzerland A-Z | 0 | - | 4.45 | 25,590 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,612 |
| U.S. Geography by Letter - W | 0 | - | 3.84 | 23,160 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,459 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,032 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,990 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 41,785 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,526 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,292 |
| American Founding Fathers | 0 | - | 4.42 | 23,155 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,314 |
| California Groups of Things | 0 | - | 4.25 | 45,346 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,229 |
| New York Groups of Things | 0 | - | 4.38 | 60,036 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,356 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,904 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,734 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,499 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 53,735 |
| Flyover States | 0 | - | 4.52 | 29,459 |
| U.S. States With Double Letters | 0 | - | 4.54 | 24,027 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,010 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,282 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 37,041 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,459 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,790 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,415 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,560 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,187 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,628 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,732 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,207 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,432 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,598 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,639 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,731 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,163 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,137 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,025 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,482 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,388 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,060 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,834 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,467 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,651 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,824 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,973 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,532 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,275 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,737 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,207 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,859 |
| Countries that Start with A | 0 | - | 4.98 | 2,155,408 |
| Countries that Start with B | 0 | - | 4.95 | 2,287,525 |
| Countries that Start with C | 0 | - | 4.96 | 1,816,470 |
| Countries that Start with D | 0 | - | 4.96 | 705,747 |
| Countries that Start with E | 0 | - | 4.95 | 1,372,604 |
| Countries that Start with G | 0 | - | 4.97 | 1,498,123 |
| Countries that Start with H | 0 | - | 4.96 | 601,449 |
| Countries that Start with I | 0 | - | 4.92 | 1,284,344 |
| Countries that Start with J | 0 | - | 4.98 | 599,411 |
| Countries that Start with K | 0 | - | 4.97 | 812,580 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,804 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,837 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,619 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,962 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,176 |
| Countries that Start with U | 0 | - | 4.97 | 902,335 |
| Countries that Start with V | 0 | - | 4.98 | 607,486 |
| Countries that Start with F | 0 | - | 4.83 | 615,056 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,707 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,261 |
| African Geography A-Z | 0 | - | 4.33 | 21,451 |
| The Only American Country ... | 0 | - | 4.92 | 121,237 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,790 |
