| Countries of Europe by Population | 0 | - | 4.98 | 183,804 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,037 |
| Name a City - European Countries | 0 | - | 4.89 | 66,457 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,233 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,254 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,432 |
| Europe Capital to Country | 0 | - | 4.99 | 252,719 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,379 |
| European Capitals by Map | 0 | - | 4.99 | 142,713 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,187 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,445 |
| European Coastal Capitals | 0 | - | 4.95 | 91,546 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,848 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,031 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,557 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,416 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,151 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 109,006 |
| Official Cities in the UK | 0 | - | 4.89 | 287,067 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,760 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,704 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,855 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,085 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,651 |
| Countries with Megacities | 0 | - | 4.99 | 268,171 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,294 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,406 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,628 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,521 |
| 5 Largest Cities for Every Letter on Map | 0 | - | 4.97 | 52,147 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,811 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,200 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,515 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,970 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 71,170 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 152,051 |
| Name a Valid European Capital | 0 | - | 4.95 | 154,096 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,731 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,615 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,507 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,621 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,889 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,258 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,424 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,762 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,154 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,284 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,019 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 228,000 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,764 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,800 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 81,014 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,435 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,157 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,751 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,893 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,352 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,613 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 132,865 |
| 5 Most Populous Cities in Each Country With a Map | 0 | - | 4.96 | 40,195 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,962 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,363 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,598 |
| The Only European Country ... | 0 | - | 4.91 | 219,756 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,919 |
| European Capitals by Airport Code | 0 | - | 4.93 | 37,032 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,378 |
| Biggest Cities in the United States | 0 | - | 4.94 | 989,827 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,661 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,468 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,427 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,688 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,072 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,427 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,876 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,836 |
| Cities in European History #1 | 0 | - | 4.63 | 134,966 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,483 |
| European Cities by Map #1 | 0 | - | 4.69 | 55,928 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,652 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,612 |
| Which City in Europe? | 0 | - | 4.83 | 108,039 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,434 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,727 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 96,002 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,650 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,922 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,939 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,105 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,293 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,838 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,930 |
| Largest City by Island | 0 | - | 4.87 | 72,608 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,529 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,933 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,297 |
| Megacities on a World Map | 0 | - | 4.98 | 257,644 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,519 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,880 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,886 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,908 |
| 50 Biggest Cities in 1920 on a World Map | 0 | - | 4.99 | 78,709 |
| 500 Biggest Cities in the World on a Map | 0 | - | 4.97 | 124,456 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 35,393 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,925 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,113 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,065 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,643 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,317 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,592 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,952 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,913 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,746 |
| Asia Capital to Country | 0 | - | 4.96 | 127,746 |
| African Capitals by Map | 0 | - | 4.99 | 142,715 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,178 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,295 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,502 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,270 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,721 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,421 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,433 |
| Slavic Countries | 0 | - | 4.96 | 112,566 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,833 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,885 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,467 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,849 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,590 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,948 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,955 |
| Counties of England | 0 | - | 4.97 | 804,713 |
| Random European City to Country | 0 | - | 4.69 | 118,575 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,485 |
| Boundary Waters | 0 | - | 4.92 | 88,870 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,490 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,900 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,635 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,104 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,124 |
| Most Populous Islands | 0 | - | 4.80 | 123,476 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,412 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,690 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,038 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,158 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,560 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,757 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,950 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,381 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,442 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,505 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,599 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,413 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,655 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,416 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,301 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,882 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,829 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,402 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,391 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,533 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,104 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,918 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,625 |
| Monarchies of Europe | 0 | - | 4.90 | 99,085 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,030 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,794 |
| European Countries with One Border | 0 | - | 4.97 | 184,102 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,820 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,870 |
| States of Germany Map Quiz | 0 | - | 4.92 | 134,044 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,358 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,963 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,961 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,693 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,718 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,641 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,241 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,088 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,077 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,337 |
| Capitals of the Stans | 0 | - | 4.95 | 27,262 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,720 |
| 10 Westernmost Major Cities in Europe | 0 | - | 4.40 | 23,939 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,682 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 49,142 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 49,200 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,558 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,657 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,005,689 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,289 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,892 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 60,237 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,690 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,189 |
| Biggest City by Region | 0 | - | 4.50 | 36,430 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,388 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,386 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,050 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 226,215 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,995 |
