| US States Quiz | 0 | - | 5.00 | 16,993,410 |
| Canada A-Z | 0 | - | 4.73 | 32,967 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,466 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,390 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,530 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,425 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,094 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,712 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,628 |
| U.S. Geography by Letter - B | 0 | - | 4.54 | 69,909 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 54,462 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,330 |
| Pixelated United States Map | 0 | - | 4.88 | 94,806 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,531 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,435 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,765 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,068 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,265 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,295 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,334 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,352 |
| U.S. States By Population | 0 | - | 4.92 | 154,130 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,212 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,882 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,536 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,084 |
| US States with an Empty Map | 0 | - | 5.00 | 628,606 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,395 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,210 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,644 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,279 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,454 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,023 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,102 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,198 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,107 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,673 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,909 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,948 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,965 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,492 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,502 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,534 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,507 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,225 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,412 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,625 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,528 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,699 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,872 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,615 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,511 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,839 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,476 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,818 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,195 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,813 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,724 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,852 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,003 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,987 |
| Africa A-Z | 0 | - | 4.57 | 46,767 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,836 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 238,623 |
| Middle East A-Z | 0 | - | 4.47 | 46,238 |
| States of Mexico | 0 | - | 4.96 | 178,215 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,599 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,150 |
| Richest Countries A-Z | 0 | - | 4.91 | 104,028 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,602 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 53,069 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 49,089 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,351 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,811 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,812 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,730 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,675 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,279 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,020 |
| United States Country Quiz | 0 | - | 4.43 | 102,178 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,062 |
| People on Money - United States | 0 | - | 4.31 | 63,432 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,615 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,478 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,359 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,199 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,504 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,143 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,118 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,535 |
| New England States | 0 | - | 4.51 | 59,894 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,054 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,117 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,141 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,280 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,139 |
| U.S. States by Borders | 0 | - | 4.62 | 35,477 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,679 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,335 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,445 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,961 |
| South America A-Z | 0 | - | 4.15 | 10,946 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,097 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,138 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,073 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,645 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 59,716 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,942 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,125 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,977 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,571 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,834 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,208 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,369 |
| European Geography A-Z | 0 | - | 4.29 | 49,479 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 77,277 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 60,293 |
| Flags of North and South America | 0 | - | 4.99 | 376,884 |
| Belize Country Quiz | 0 | - | 4.85 | 21,083 |
| Top U.S. Universities | 0 | - | 4.15 | 145,805 |
| Largest United States Airlines | 0 | - | 4.39 | 55,157 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,975 |
| U.S. States by Governor | 0 | - | 4.43 | 18,111 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,764 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,776 |
| Events in U.S. History | 0 | - | 4.41 | 28,822 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,011 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,845 |
| France A-Z | 0 | - | 4.16 | 38,332 |
| Switzerland A-Z | 0 | - | 4.45 | 25,765 |
| U.S. Geography by Letter - W | 0 | - | 3.86 | 23,736 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,727 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,293 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,520 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,986 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,875 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,472 |
| American Founding Fathers | 0 | - | 4.42 | 23,273 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,705 |
| California Groups of Things | 0 | - | 4.26 | 45,769 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,319 |
| New York Groups of Things | 0 | - | 4.39 | 72,064 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,582 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,219 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 75,056 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,567 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,813 |
| Flyover States | 0 | - | 4.53 | 29,594 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,264 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,461 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,183 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,563 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,682 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,761 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,972 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,997 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 119,330 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,438 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,675 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,032 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,817 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,109 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,474 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,867 |
| European Geography By Letter - D | 0 | - | 4.48 | 116,534 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,019 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,469 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,096 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,576 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,026 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,560 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,406 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,454 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 66,068 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,659 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,196 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,656 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,313 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,300 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 77,033 |
| Countries that Start with A | 0 | - | 4.98 | 2,175,447 |
| Countries that Start with B | 0 | - | 4.95 | 2,306,180 |
| Countries that Start with C | 0 | - | 4.96 | 1,831,227 |
| Countries that Start with D | 0 | - | 4.96 | 716,267 |
| Countries that Start with E | 0 | - | 4.95 | 1,384,893 |
| Countries that Start with G | 0 | - | 4.97 | 1,511,321 |
| Countries that Start with H | 0 | - | 4.96 | 609,473 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,423 |
| Countries that Start with J | 0 | - | 4.98 | 606,851 |
| Countries that Start with K | 0 | - | 4.97 | 820,650 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,663 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,707 |
| Countries that Start with P | 0 | - | 4.94 | 1,221,884 |
| Countries that Start with S | 0 | - | 4.98 | 1,762,963 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,811 |
| Countries that Start with U | 0 | - | 4.97 | 908,390 |
| Countries that Start with V | 0 | - | 4.98 | 611,942 |
| Countries that Start with F | 0 | - | 4.83 | 621,207 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,108 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.46 | 44,551 |
