| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,622 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 29,900 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,384 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,293 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,189 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,624 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,320 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,565 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,767 |
| Random European Capital to Country | 0 | - | 4.98 | 191,184 |
| Random European Country to Capital | 0 | - | 4.93 | 165,354 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,577 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,929 |
| Random African Capital to Country | 0 | - | 4.97 | 100,858 |
| Random African Country to Capital | 0 | - | 4.94 | 71,364 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.96 | 193,844 |
| Biggest English Cities by Century | 0 | - | 4.91 | 106,457 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,654 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,141 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,741 |
| North American Sports Cities | 0 | - | 4.83 | 172,617 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,380 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 110,922 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,457 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,352 |
| Name a City - European Countries | 0 | - | 4.90 | 65,584 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,507 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,489 |
| Europe Capital to Country | 0 | - | 4.99 | 250,804 |
| Asia Capital to Country | 0 | - | 4.96 | 126,838 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,163 |
| European Capitals by Map | 0 | - | 4.99 | 139,876 |
| African Capitals by Map | 0 | - | 4.99 | 134,114 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,373 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,606 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,270 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,601 |
| European Coastal Capitals | 0 | - | 4.95 | 90,778 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,658 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,742 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,471 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,907 |
| Olympic Host Countries | 0 | - | 4.98 | 201,076 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 310,589 |
| Vietnam War Countries | 0 | - | 4.82 | 94,344 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 47,385 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,591 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,509 |
| Official Cities in the UK | 0 | - | 4.89 | 284,423 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,359 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,149 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,162 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,978 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,656 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,229 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,506 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,688 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,191 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,496 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,005 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,277 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,535 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,667 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,280 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,392 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,839 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,738 |
| Countries with the Most Downhill Skiing | 0 | - | 4.89 | 57,479 |
| Capitals of the Stans | 0 | - | 4.95 | 26,904 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,949 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,325 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,285 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 41,750 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,692,435 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,263 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,455 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,962 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,734 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,039 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,584 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,920 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,069 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,899 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,290 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,862 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,180 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,112 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,503 |
| Which City in Europe? | 0 | - | 4.83 | 107,541 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,652 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,911 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,966 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,544 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,239 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,783 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,819 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,960 |
| Biggest Cities in History | 0 | - | 4.52 | 90,285 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 78,042 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,670 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.59 | 25,858 |
| Colour in the Flag Map by Guessing Cities | 0 | - | 4.92 | 64,713 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,530 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 120,408 |
| Cities in European History #1 | 0 | - | 4.63 | 134,181 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,381 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,789 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,903 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,148 |
| Winter Olympics Hosts | 0 | - | 4.41 | 87,511 |
| Cities in Squares on a Map - Europe | 0 | - | 4.70 | 53,989 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,204 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,219 |
| US States and State Capitals | 0 | - | 4.99 | 163,388 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,397 |
| Which City in Canada? | 0 | - | 4.83 | 57,137 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,574,919 |
| Countries with Most Grand Slam Tennis Titles | 0 | - | 4.42 | 57,876 |
| Countries with Major League Baseball Players | 0 | - | 4.61 | 68,076 |
| Countries With The Most NHL Hockey Players | 0 | - | 4.48 | 100,526 |
| Countries with the Fastest Marathoners | 0 | - | 4.51 | 95,656 |
| Countries with the Most Golf Courses | 0 | - | 4.55 | 56,532 |
| Countries With the Most NBA Players | 0 | - | 4.47 | 118,162 |
| Countries with the Most Summer Olympics Medals | 0 | - | 4.55 | 93,277 |
| Countries Where Baseball is the Most Popular Sport | 0 | - | 4.42 | 55,396 |
| Countries that Export the Most Football Players | 0 | - | 4.43 | 58,611 |
| Countries with the Fastest 100 Meter Sprinters | 0 | - | 4.44 | 86,320 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,928 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,208 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,472 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,325 |
| NBA Cities Map Quiz | 0 | - | 4.51 | 252,839 |
| MLB Cities Map Quiz | 0 | - | 4.50 | 69,704 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,387 |
| U.S. Senators by State | 0 | - | 4.44 | 39,995 |
| Boundary Waters | 0 | - | 4.92 | 88,564 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,243 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,701 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,008 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,258 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,692 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,590 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,019 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,933 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,397 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,196 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,870 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,407 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,495 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,724 |
| American Cities by Stadium | 0 | - | 4.02 | 36,554 |
| City by Football Clubs | 0 | - | 4.38 | 138,095 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,964 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,408 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,609 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,572 |
| South American Cities on the Map | 0 | - | 4.53 | 35,464 |
| North America Cities by Map | 0 | - | 4.41 | 47,839 |
| Southeast Asian Cities by Map | 0 | - | 4.63 | 26,741 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,433 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,807 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,772 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,013 |
| Random U.S. City to State | 0 | - | 4.45 | 76,495 |
| Random European City to Country | 0 | - | 4.69 | 117,856 |
| Random Asian City to Country | 0 | - | 4.56 | 44,559 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,488 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 48,532 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 48,910 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,148 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,851 |
| World Capitals Quiz | 0 | - | 5.00 | 5,082,659 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,590,261 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,040 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,203 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,941 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,387 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,291 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 16,027 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,427 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,734 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 114,127 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,075 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,801 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,719 |
| European Cities by Clue | 0 | - | 4.70 | 89,089 |
| Which City in Africa? | 0 | - | 4.77 | 57,877 |
| Which City in Asia? | 0 | - | 4.52 | 51,439 |
| Boroughs of New York City | 0 | - | 4.47 | 84,700 |
| Boroughs of London | 0 | - | 4.63 | 88,082 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,046 |
| London Geography | 0 | - | 4.47 | 59,730 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,475 |
| Landlocked Countries | 0 | - | 4.99 | 421,861 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,136 |
| Island Countries | 0 | - | 4.99 | 711,012 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,390 |
| Himalayan Countries | 0 | - | 4.95 | 138,668 |
| Andean Countries | 0 | - | 4.93 | 84,579 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,774 |
