| Canada A-Z | 0 | - | 4.73 | 32,696 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,910 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,281 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,578 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,116 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,717 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,326 |
| Africa A-Z | 0 | - | 4.57 | 46,434 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,526 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,120 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 34,897 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,222 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,412 |
| States of Mexico | 0 | - | 4.95 | 174,045 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.91 | 53,221 |
| South America A-Z | 0 | - | 4.13 | 10,853 |
| States of Brazil | 0 | - | 4.98 | 86,787 |
| Middle East A-Z | 0 | - | 4.47 | 45,868 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,171 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,994 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,355 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,908 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,395 |
| European Geography A-Z | 0 | - | 4.28 | 49,063 |
| World Cities A-Z by Clue #1 | 0 | - | 4.50 | 66,913 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 58,278 |
| Flags of North and South America | 0 | - | 4.99 | 368,950 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,589 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,051 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,016 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,896 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,368 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,158 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,968 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,741 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,116 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,477 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,718 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,986 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,236 |
| France A-Z | 0 | - | 4.16 | 38,094 |
| Switzerland A-Z | 0 | - | 4.45 | 25,545 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,898 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,472 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,225 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,648 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,145 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,784 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,205 |
| African Geography A-Z | 0 | - | 4.33 | 21,437 |
| The Only American Country ... | 0 | - | 4.92 | 121,008 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,500 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 73,681 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,636 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,620 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,302 |
| U.S. Geography by Letter - P | 0 | - | 4.36 | 47,735 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 52,903 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 40,736 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 38,866 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,647 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,582 |
| Countries that Start with A | 0 | - | 4.98 | 2,150,765 |
| Countries that Start with B | 0 | - | 4.95 | 2,283,366 |
| Countries that Start with C | 0 | - | 4.96 | 1,813,115 |
| Countries that Start with D | 0 | - | 4.96 | 703,492 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,816 |
| Countries that Start with G | 0 | - | 4.97 | 1,495,277 |
| Countries that Start with H | 0 | - | 4.96 | 599,554 |
| Countries that Start with I | 0 | - | 4.92 | 1,282,167 |
| Countries that Start with J | 0 | - | 4.98 | 597,596 |
| Countries that Start with K | 0 | - | 4.97 | 810,849 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,710 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,632 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,297 |
| Countries that Start with S | 0 | - | 4.98 | 1,747,041 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,551 |
| Countries that Start with U | 0 | - | 4.97 | 901,002 |
| Countries that Start with V | 0 | - | 4.98 | 606,080 |
| Countries that Start with F | 0 | - | 4.83 | 613,526 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,363 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,409 |
| US States Quiz | 0 | - | 5.00 | 16,744,749 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,748 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,611 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,274 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,647 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,915 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,033 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,232 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,501 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,374 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,550 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,415 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 744,238 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,853 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,502 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,646 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,045 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,607 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,790 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,354 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,791 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,029 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,648 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,614 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,299 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,029 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,370 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,593 |
| Asian Geography By Letter - S | 0 | - | 4.18 | 55,954 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 51,756 |
| Asian Geography by Letter - G | 0 | - | 4.35 | 51,051 |
| Asian Geography by Letter - I | 0 | - | 4.36 | 67,578 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,560 |
| Asian Geography by Letter - N | 0 | - | 4.33 | 50,063 |
| Asian Geography By Letter - J | 0 | - | 4.25 | 34,554 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,539 |
| The Bible A-Z | 0 | - | 4.29 | 59,468 |
| Capitals A-Z #2 | 0 | - | 4.45 | 26,670 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,267 |
| 17th Century A-Z | 0 | - | 4.78 | 34,208 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,141 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.91 | 80,265 |
| U.S. Geography by Letter - N | 0 | - | 3.79 | 52,440 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,440 |
| U.S. Geography by Letter - F | 0 | - | 3.87 | 44,699 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 40,925 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 30,548 |
| South American Physical Geography | 0 | - | 4.58 | 18,292 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,436 |
| Pixelated United States Map | 0 | - | 4.89 | 93,675 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,767 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,072 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,546 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,055 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,680 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,699 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,059 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,287 |
| U.S. States By Population | 0 | - | 4.92 | 152,614 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,689 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,033 |
| US States with an Empty Map | 0 | - | 5.00 | 620,257 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,884 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,094 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,554 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,485 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,996 |
| One Country By Letter By Continent | 0 | - | 5.00 | 122,251 |
| American Football A-Z | 0 | - | 4.26 | 14,484 |
| MLB Baseball A-Z #2 | 0 | - | 4.11 | 17,029 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,868 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,211 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,357 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,883 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,817 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,646 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,895 |
| People on Money - United States | 0 | - | 4.31 | 63,234 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,889 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,221 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,082 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,914 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,329 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,247 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,071 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,638 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,055 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,268 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,044 |
| London A-Z | 0 | - | 4.10 | 40,674 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,823 |
| Asian Geography By Letter - R | 0 | - | 4.34 | 27,670 |
| Military History A-Z | 0 | - | 4.20 | 21,075 |
| Countries Bordering "U" Countries | 0 | - | 4.83 | 24,197 |
| Human Body A-Z | 0 | - | 4.51 | 128,755 |
| Animals A-Z #1 | 0 | - | 4.41 | 92,938 |
| Diseases and Medical Conditions A-Z | 0 | - | 4.68 | 56,466 |
| Belize Country Quiz | 0 | - | 4.85 | 20,843 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,858 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,501 |
| Famous Germans | 0 | - | 4.50 | 54,746 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,736 |
| Turkey A-Z | 0 | - | 4.04 | 11,760 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,307,860 |
| Countries that Start with R | 0 | - | 4.43 | 444,619 |
| Africa Map Quiz | 0 | - | 5.00 | 2,107,715 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,025 |
| Australian Capitals | 0 | - | 4.92 | 62,616 |
| U.S. Geography by Letter - W | 0 | - | 3.84 | 23,108 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,758 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,282 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,344 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,499 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,106 |
| United States Country Quiz | 0 | - | 4.43 | 100,827 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,682 |
| Canada Country Quiz | 0 | - | 4.55 | 131,919 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,756 |
