| Capitals A-Z #1 | 0 | - | 4.86 | 51,152 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 235,025 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,963 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,939 |
| Name a Country A-Z | 0 | - | 5.00 | 240,690 |
| Name a Minecraft Mob A-Z | 0 | - | 4.85 | 41,725 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 120,258 |
| Countries that Start with a Vowel | 0 | - | 4.98 | 128,811 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,444 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,358 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,005 |
| Countries that Start with A | 0 | - | 4.97 | 2,148,288 |
| Countries that Start with B | 0 | - | 4.95 | 2,281,110 |
| Countries that Start with C | 0 | - | 4.96 | 1,811,339 |
| Countries that Start with D | 0 | - | 4.96 | 702,259 |
| Countries that Start with E | 0 | - | 4.95 | 1,368,336 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,709 |
| Countries that Start with H | 0 | - | 4.96 | 598,534 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,971 |
| Countries that Start with J | 0 | - | 4.98 | 596,590 |
| Countries that Start with K | 0 | - | 4.97 | 809,923 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,527 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,430 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,190 |
| Countries that Start with S | 0 | - | 4.98 | 1,745,467 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,701 |
| Countries that Start with U | 0 | - | 4.97 | 900,314 |
| Countries that Start with V | 0 | - | 4.98 | 605,476 |
| Countries that Start with F | 0 | - | 4.83 | 612,674 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,086 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,786 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,049 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,437 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 190,871 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,472 |
| Middle East A-Z | 0 | - | 4.47 | 45,821 |
| Countries with the Greatest Elevation A-Z | 0 | - | 4.83 | 72,209 |
| 1950s Decade Quiz | 0 | - | 4.41 | 48,940 |
| 1960s Decade Quiz #2 | 0 | - | 4.45 | 44,517 |
| Military History Vocabulary | 0 | - | 4.91 | 66,699 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,051 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,417 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,369 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,274 |
| A-Z Cities by Pictures | 0 | - | 4.56 | 43,571 |
| Four Letter Geography A-Z #1 | 0 | - | 4.60 | 32,025 |
| Four Letter Geography A-Z #2 | 0 | - | 4.56 | 34,470 |
| WWII Geography | 0 | - | 4.81 | 119,423 |
| Normandy D-Day Beaches | 0 | - | 4.83 | 40,140 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,597 |
| Territory Changes in World War I | 0 | - | 4.86 | 46,263 |
| Time Magazine Person of the Year | 0 | - | 4.53 | 73,599 |
| Countries That Were Invaded | 0 | - | 4.54 | 96,959 |
| The Bible A-Z | 0 | - | 4.29 | 59,370 |
| One Country By Letter By Continent | 0 | - | 5.00 | 121,902 |
| Capitals A-Z #2 | 0 | - | 4.45 | 26,657 |
| European Geography A-Z | 0 | - | 4.28 | 49,026 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,212 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,144 |
| 1960s Decade Quiz #1 | 0 | - | 4.40 | 49,738 |
| One Country By Letter By Continent on the Map | 0 | - | 4.99 | 45,892 |
| One Capital by Letter by Continent | 0 | - | 4.98 | 17,021 |
| France A-Z | 0 | - | 4.16 | 38,075 |
| Switzerland A-Z | 0 | - | 4.45 | 25,522 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,180 |
| "Second Best" History Edition | 0 | - | 4.93 | 61,984 |
| Famous Dictators #1 | 0 | - | 4.69 | 198,878 |
| Art Works Picture Quiz #1 | 0 | - | 4.51 | 118,534 |
| Art Works Picture Quiz #2 | 0 | - | 4.49 | 104,744 |
| Art Works Picture Quiz #3 | 0 | - | 4.45 | 48,552 |
| WWI... or WWII? | 0 | - | 4.85 | 140,795 |
| Famous Battles Quiz | 0 | - | 4.21 | 48,826 |
| Name the War | 0 | - | 4.37 | 200,850 |
| Famous U.S. Generals | 0 | - | 4.27 | 38,416 |
| Names for Warriors | 0 | - | 4.40 | 36,801 |
| The 17th Century | 0 | - | 4.54 | 53,671 |
| 1940s Decade Quiz | 0 | - | 4.51 | 51,688 |
| 2010s Decade Quiz | 0 | - | 4.53 | 101,190 |
| Military History A-Z | 0 | - | 4.20 | 21,049 |
| Countries that Start with R | 0 | - | 4.43 | 443,990 |
| Countries Bordering "U" Countries | 0 | - | 4.81 | 24,108 |
| World Cities A-Z by Clue #1 | 0 | - | 4.51 | 66,386 |
| World Cities A-Z by Clue #2 | 0 | - | 4.41 | 57,819 |
| Asian Cities A-Z by Clue | 0 | - | 4.51 | 34,498 |
| Africa A-Z | 0 | - | 4.57 | 46,395 |
| African Geography A-Z | 0 | - | 4.33 | 21,425 |
| London A-Z | 0 | - | 4.10 | 40,656 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,238 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,077 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,232 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,519 |
| Former Countries by Territory Map | 0 | - | 4.96 | 101,720 |
| Empires by Maps | 0 | - | 4.98 | 118,692 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,683 |
| Ultimate 20th Century History Quiz | 0 | - | 4.86 | 53,294 |
| The 7 Wonders of the Ancient World | 0 | - | 4.85 | 82,126 |
| Quiz on the Year 2001 | 0 | - | 4.48 | 24,164 |
| Famous Generals - Non U.S. | 0 | - | 4.58 | 15,019 |
| People Portrayed by Andy Warhol | 0 | - | 4.35 | 37,684 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,306,019 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,858 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,462 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,959 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,911 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,764 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,274 |
| European Geography By Letter - M | 0 | - | 4.61 | 129,003 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,720 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,675 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,056 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,424 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,191 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,598 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,106 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,367 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,636 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,751 |
| World Cities Based on Location A-Z - #1 | 0 | - | 4.45 | 44,169 |
| Turkey A-Z | 0 | - | 4.04 | 11,736 |
| Google What's the Difference? - History | 0 | - | 4.20 | 46,046 |
| Metals of Antiquity | 0 | - | 4.94 | 92,965 |
| Popular Royal Names | 0 | - | 4.27 | 124,520 |
| Russian History A-Z | 0 | - | 4.38 | 31,109 |
| History of The Netherlands | 0 | - | 4.46 | 17,326 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,226 |
| History: What Came First? #1 | 0 | - | 4.87 | 104,270 |
| Famous Dictators #2 | 0 | - | 4.31 | 87,139 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,674 |
| First Names of Painters | 0 | - | 4.43 | 59,616 |
| Notable People of WWII | 0 | - | 4.53 | 85,344 |
| WWII Trivia #2 | 0 | - | 4.52 | 103,467 |
| World War I Quiz | 0 | - | 4.78 | 100,321 |
| WWI A-Z | 0 | - | 4.50 | 38,046 |
| U.S. History A-Z #1 | 0 | - | 4.35 | 29,529 |
| NBA Basketball by Year, 1970–1999 | 0 | - | 4.28 | 44,794 |
| NBA Basketball by Year, 2000–Present | 0 | - | 4.33 | 60,297 |
| 1970s Decade Quiz | 0 | - | 4.20 | 52,375 |
| 2000s Decade Quiz | 0 | - | 4.23 | 119,942 |
| 1980s Decade Quiz | 0 | - | 4.38 | 76,415 |
| 1910s Decade Quiz | 0 | - | 4.19 | 52,369 |
| 1930s Decade Quiz | 0 | - | 4.28 | 48,778 |
| 1920s Decade Quiz | 0 | - | 4.33 | 49,434 |
| 1990s Decade Quiz | 0 | - | 4.01 | 54,646 |
| 1850s Decade Quiz | 0 | - | 4.42 | 34,987 |
| 1790s Decade Quiz | 0 | - | 4.55 | 33,434 |
| 1800s Decade Quiz | 0 | - | 4.47 | 31,716 |
| Years in History #1 - Multiple Choice | 0 | - | 4.85 | 69,697 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 155,912 |
| Best Selling Artists by Letter Quiz | 0 | - | 4.04 | 43,215 |
| Colors by Letter | 0 | - | 4.25 | 162,090 |
| Asian Geography By Letter - S | 0 | - | 4.18 | 55,936 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,270 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,707 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,942 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,327 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,536 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,201 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,956 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,325 |
| Asian Geography by Letter - D | 0 | - | 4.27 | 51,726 |
| Asian Geography by Letter - G | 0 | - | 4.35 | 51,015 |
| Asian Geography by Letter - I | 0 | - | 4.36 | 67,542 |
| Asian Geography by Letter - C | 0 | - | 4.32 | 64,527 |
| Asian Geography by Letter - N | 0 | - | 4.33 | 50,038 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,542 |
| Asian Geography By Letter - J | 0 | - | 4.25 | 34,520 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,479 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,748 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,254 |
| California Cities A-Z | 0 | - | 4.06 | 17,022 |
| Birds A-Z | 0 | - | 4.24 | 36,367 |
| Canada A-Z | 0 | - | 4.73 | 32,666 |
| Texas A-Z | 0 | - | 4.18 | 16,314 |
| Pennsylvania A-Z | 0 | - | 4.11 | 7,518 |
| Hawaii A-Z | 0 | - | 4.28 | 13,409 |
| Ohio A-Z | 0 | - | 4.21 | 6,351 |
| Influential Women in History | 0 | - | 4.42 | 35,136 |
| Cradles of Civilization | 0 | - | 4.46 | 39,199 |
| Former Flags | 0 | - | 4.97 | 106,816 |
| Materials From History #1 | 0 | - | 4.56 | 50,959 |
| World Leaders Quiz #2 | 0 | - | 4.00 | 35,673 |
| UN Secretaries-General | 0 | - | 4.40 | 7,769 |
| Benevolent Dictators and Enlightened Despots | 0 | - | 4.01 | 19,553 |
| WWII Trivia #1 | 0 | - | 4.36 | 176,720 |
| WWII Decoder | 0 | - | 4.41 | 53,073 |
| World War II Multiple Choice | 0 | - | 4.38 | 103,330 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,794 |
| WWII for Dummies | 0 | - | 4.80 | 103,940 |
| Cold War Decoder | 0 | - | 4.83 | 51,976 |
| Name a Valid Year in History | 0 | - | 4.93 | 66,485 |
| Biggest Nations and Empires Ever | 0 | - | 4.46 | 145,296 |
| Famous Explorers | 0 | - | 4.58 | 35,992 |
| Famous Empires by Description | 0 | - | 4.73 | 117,991 |
| Answers by Time Period | 0 | - | 4.63 | 55,307 |
| People Who Died in Battle | 0 | - | 4.35 | 22,272 |
| Quiz on the Year 1997 | 0 | - | 4.39 | 20,911 |
| Quiz on the Year 1998 | 0 | - | 4.33 | 17,207 |
| Quiz on the Year 2000 | 0 | - | 4.08 | 21,098 |
| 1900s Decade Quiz | 0 | - | 4.18 | 44,018 |
| 1860s Decade Quiz | 0 | - | 4.31 | 40,197 |
