| Canada A-Z | 0 | - | 4.73 | 32,878 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,735 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,984 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,490 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,696 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,229 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 73,073 |
| Africa A-Z | 0 | - | 4.57 | 46,662 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,632 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 41,712 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,585 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 237,588 |
| States of Mexico | 0 | - | 4.96 | 176,610 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,126 |
| South America A-Z | 0 | - | 4.13 | 10,919 |
| States of Brazil | 0 | - | 4.97 | 88,498 |
| Middle East A-Z | 0 | - | 4.47 | 46,123 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,403 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,401 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,122 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,488 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,919 |
| European Geography A-Z | 0 | - | 4.29 | 49,348 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 68,378 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 59,253 |
| Flags of North and South America | 0 | - | 4.99 | 374,009 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,626 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,661 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,086 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,379 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,975 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,767 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,008 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,735 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,034 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,859 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,153 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,641 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,750 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,499 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,625 |
| France A-Z | 0 | - | 4.16 | 38,252 |
| Switzerland A-Z | 0 | - | 4.45 | 25,678 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,219 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,797 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,472 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,983 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,430 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,103 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,984 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,412 |
| African Geography A-Z | 0 | - | 4.33 | 21,496 |
| The Only American Country ... | 0 | - | 4.92 | 121,773 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,242 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,142 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,159 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,148 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,846 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,985 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,367 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,207 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,372 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,223 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,682 |
| Countries that Start with A | 0 | - | 4.98 | 2,165,748 |
| Countries that Start with B | 0 | - | 4.95 | 2,297,236 |
| Countries that Start with C | 0 | - | 4.96 | 1,824,369 |
| Countries that Start with D | 0 | - | 4.96 | 711,292 |
| Countries that Start with E | 0 | - | 4.95 | 1,379,114 |
| Countries that Start with G | 0 | - | 4.97 | 1,505,363 |
| Countries that Start with H | 0 | - | 4.96 | 605,917 |
| Countries that Start with I | 0 | - | 4.92 | 1,289,824 |
| Countries that Start with J | 0 | - | 4.98 | 603,541 |
| Countries that Start with K | 0 | - | 4.97 | 817,043 |
| Countries that Start with L | 0 | - | 4.98 | 1,092,189 |
| Countries that Start with N | 0 | - | 4.93 | 1,119,200 |
| Countries that Start with P | 0 | - | 4.94 | 1,217,635 |
| Countries that Start with S | 0 | - | 4.98 | 1,756,932 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,981 |
| Countries that Start with U | 0 | - | 4.97 | 905,427 |
| Countries that Start with V | 0 | - | 4.98 | 609,974 |
| Countries that Start with F | 0 | - | 4.83 | 618,508 |
| Countries that Start with M | 0 | - | 4.97 | 1,383,334 |
| US States Quiz | 0 | - | 5.00 | 16,907,555 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,482 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,923 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,332 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,789 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,951 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,934 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,380 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,596 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,044 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,217 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,066 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,802 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,817 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,767 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,645 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,863 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,923 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,347 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,025 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,400 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,263 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,944 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,715 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,358 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,873 |
| European Geography by Letter - W | 0 | - | 4.20 | 83,037 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,314 |
| Asian Geography By Letter - S | 0 | - | 4.17 | 56,127 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 51,982 |
| Asian Geography by Letter - G | 0 | - | 4.36 | 51,265 |
| Asian Geography by Letter - I | 0 | - | 4.37 | 67,842 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,792 |
| Asian Geography by Letter - N | 0 | - | 4.34 | 50,287 |
| Asian Geography By Letter - J | 0 | - | 4.26 | 34,780 |
| The Bible A-Z | 0 | - | 4.29 | 59,835 |
| Capitals A-Z #2 | 0 | - | 4.45 | 26,831 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,546 |
| 17th Century A-Z | 0 | - | 4.78 | 34,674 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,459 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,333 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 52,788 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,815 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,078 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,539 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 31,078 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,635 |
| South American Physical Geography | 0 | - | 4.58 | 18,365 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,785 |
| Pixelated United States Map | 0 | - | 4.88 | 94,412 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,881 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,942 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,004 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,082 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,643 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,615 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,248 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,556 |
| U.S. States By Population | 0 | - | 4.92 | 153,689 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,643 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,554 |
| US States with an Empty Map | 0 | - | 5.00 | 625,677 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,304 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,750 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,438 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,528 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,633 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,319 |
| One Country By Letter By Continent | 0 | - | 5.00 | 124,375 |
| American Football A-Z | 0 | - | 4.26 | 14,533 |
| MLB Baseball A-Z #2 | 0 | - | 4.11 | 17,116 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,516 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,863 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,641 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,217 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,946 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,629 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,750 |
| People on Money - United States | 0 | - | 4.31 | 63,365 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,790 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,344 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,238 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,876 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,278 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,894 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,583 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,975 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,296 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,427 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,164 |
| London A-Z | 0 | - | 4.10 | 40,804 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,536 |
| Asian Geography By Letter - R | 0 | - | 4.35 | 28,019 |
| Military History A-Z | 0 | - | 4.20 | 21,189 |
| Countries Bordering "U" Countries | 0 | - | 4.82 | 24,611 |
| Human Body A-Z | 0 | - | 4.51 | 129,328 |
| Animals A-Z #1 | 0 | - | 4.41 | 93,716 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.69 | 57,917 |
| Belize Country Quiz | 0 | - | 4.85 | 21,008 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,268 |
| Europe Map Quiz | 0 | - | 5.00 | 4,769,005 |
| Famous Germans | 0 | - | 4.50 | 55,484 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,711 |
| Turkey A-Z | 0 | - | 4.04 | 11,866 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,319,050 |
| Countries that Start with R | 0 | - | 4.43 | 448,226 |
| Africa Map Quiz | 0 | - | 5.00 | 2,120,896 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,519 |
| Australian Capitals | 0 | - | 4.92 | 62,742 |
| U.S. Geography by Letter - W | 0 | - | 3.86 | 23,452 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,784 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,305 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,581 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,604 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,205 |
| United States Country Quiz | 0 | - | 4.43 | 101,666 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,931 |
