| US States Quiz | 0 | - | 5.00 | 16,881,368 |
| Canada A-Z | 0 | - | 4.73 | 32,842 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,970 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,681 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,547 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,160 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,888 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,253 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,129 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,433 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,878 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,236 |
| Pixelated United States Map | 0 | - | 4.87 | 94,292 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,719 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,797 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,823 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,905 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,462 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,474 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,051 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,334 |
| U.S. States By Population | 0 | - | 4.92 | 153,574 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,482 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,456 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,225 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,646 |
| US States with an Empty Map | 0 | - | 5.00 | 624,811 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,182 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,467 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,503 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,638 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,789 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,499 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,091 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,254 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,596 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,741 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,309 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,409 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,955 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,914 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,095 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,105 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,102 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,794 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,887 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,338 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,152 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,315 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,143 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,018 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,672 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,690 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,111 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,918 |
| Africa A-Z | 0 | - | 4.57 | 46,613 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,502 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,287 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,531 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,599 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,538 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,263 |
| Middle East A-Z | 0 | - | 4.47 | 46,029 |
| States of Mexico | 0 | - | 4.96 | 176,196 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,779 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,821 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,179 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,340 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 52,751 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,777 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,042 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,509 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 31,026 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,573 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,533 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,589 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,184 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,920 |
| United States Country Quiz | 0 | - | 4.43 | 101,549 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,892 |
| People on Money - United States | 0 | - | 4.31 | 63,348 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,397 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,377 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,051 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,991 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,531 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,990 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,897 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,355 |
| New England States | 0 | - | 4.51 | 59,812 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,824 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,015 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,830 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,018 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,938 |
| U.S. States by Borders | 0 | - | 4.61 | 35,327 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,487 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,050 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,232 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,779 |
| South America A-Z | 0 | - | 4.13 | 10,907 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,990 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,937 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,809 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,494 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,191 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,804 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,833 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,878 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,502 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,776 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,864 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,312 |
| European Geography A-Z | 0 | - | 4.29 | 49,278 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,213 |
| Flags of North and South America | 0 | - | 4.99 | 373,258 |
| Belize Country Quiz | 0 | - | 4.85 | 20,982 |
| Top U.S. Universities | 0 | - | 4.15 | 145,168 |
| Largest United States Airlines | 0 | - | 4.39 | 55,038 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,745 |
| U.S. States by Governor | 0 | - | 4.43 | 18,063 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,701 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,683 |
| Events in U.S. History | 0 | - | 4.41 | 28,679 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,394 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,525 |
| France A-Z | 0 | - | 4.16 | 38,212 |
| Switzerland A-Z | 0 | - | 4.45 | 25,648 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,790 |
| U.S. Geography by Letter - W | 0 | - | 3.86 | 23,416 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,572 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,145 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,200 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 49,178 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,665 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,365 |
| American Founding Fathers | 0 | - | 4.42 | 23,228 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,459 |
| California Groups of Things | 0 | - | 4.25 | 45,495 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,266 |
| New York Groups of Things | 0 | - | 4.35 | 63,750 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,471 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,066 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,859 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,525 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,313 |
| Flyover States | 0 | - | 4.52 | 29,515 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,129 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,176 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,354 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,107 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,505 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,540 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,637 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,389 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,766 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,110 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,308 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,522 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,779 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,707 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,377 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,530 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,096 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,726 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,596 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,753 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,610 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,914 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,765 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,054 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,504 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,656 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,147 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,714 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,426 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,927 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,384 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,045 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,898 |
| Countries that Start with A | 0 | - | 4.98 | 2,163,275 |
| Countries that Start with B | 0 | - | 4.95 | 2,294,952 |
| Countries that Start with C | 0 | - | 4.96 | 1,822,559 |
| Countries that Start with D | 0 | - | 4.96 | 709,980 |
| Countries that Start with E | 0 | - | 4.95 | 1,377,581 |
| Countries that Start with G | 0 | - | 4.97 | 1,503,747 |
| Countries that Start with H | 0 | - | 4.96 | 605,007 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,622 |
| Countries that Start with J | 0 | - | 4.98 | 602,697 |
| Countries that Start with K | 0 | - | 4.97 | 816,067 |
| Countries that Start with L | 0 | - | 4.98 | 1,091,053 |
| Countries that Start with N | 0 | - | 4.93 | 1,118,043 |
| Countries that Start with P | 0 | - | 4.94 | 1,216,423 |
| Countries that Start with S | 0 | - | 4.98 | 1,755,259 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,094 |
| Countries that Start with U | 0 | - | 4.97 | 904,702 |
| Countries that Start with V | 0 | - | 4.98 | 609,496 |
| Countries that Start with F | 0 | - | 4.83 | 617,828 |
| Countries that Start with M | 0 | - | 4.97 | 1,382,037 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,374 |
