| Five Most Inland Capital Cities by Continent | 0 | - | 4.91 | 13,133 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,581 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,889 |
| Africa Capitals Quiz | 0 | - | 4.99 | 737,586 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,773 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,651 |
| Random European Capital to Country | 0 | - | 4.98 | 190,892 |
| Random European Country to Capital | 0 | - | 4.93 | 165,112 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,447 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,751 |
| Random African Capital to Country | 0 | - | 4.97 | 100,711 |
| Random African Country to Capital | 0 | - | 4.94 | 71,199 |
| World Capitals Quiz | 0 | - | 5.00 | 5,072,890 |
| Europe Capital to Country | 0 | - | 4.99 | 250,069 |
| Asia Capital to Country | 0 | - | 4.96 | 126,653 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,859 |
| European Capitals by Map | 0 | - | 4.99 | 139,119 |
| African Capitals by Map | 0 | - | 4.99 | 133,771 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,379 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,058 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,408 |
| European Coastal Capitals | 0 | - | 4.95 | 90,581 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,584 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,928 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,983 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,823 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,177 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,586,121 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,354 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,748 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,463 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,027 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,254 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,825 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,168 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,352 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,279 |
| Capitals of the Stans | 0 | - | 4.95 | 26,838 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,436 |
| Countries with Megacities | 0 | - | 4.99 | 263,270 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,269 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,229 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,569 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,268 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,106 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,090 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,232 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,392 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,475 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,205 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,965 |
| Countries by Capital City | 0 | - | 5.00 | 68,242 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,152 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,637 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,181 |
| Moved Capital Cities | 0 | - | 4.96 | 74,201 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,356 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,551 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,147 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,323 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,507 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,293 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,367 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,462 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,516 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,713 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,778 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,882 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,389 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,531 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,072 |
| North American Sports Cities | 0 | - | 4.83 | 172,365 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,315 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,381 |
| Name a City - European Countries | 0 | - | 4.90 | 65,365 |
| Name a Valid World City | 0 | - | 4.83 | 71,189 |
| Cities by Former Name | 0 | - | 4.83 | 91,563 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,389 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,650 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,186 |
| World Capitals by Map | 0 | - | 5.00 | 286,393 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,299 |
| Random Capital to Country | 0 | - | 4.99 | 2,591,011 |
| Random Country to Capital | 0 | - | 4.98 | 920,356 |
| Capitals Starting With H | 0 | - | 4.91 | 92,537 |
| Capitals Starting With K | 0 | - | 4.88 | 83,453 |
| Capitals Starting With L | 0 | - | 4.81 | 88,061 |
| Capitals Starting With M | 0 | - | 4.93 | 107,769 |
| Capitals Starting With P | 0 | - | 4.88 | 78,190 |
| Capitals Starting With R | 0 | - | 4.87 | 81,812 |
| Capitals Starting With S | 0 | - | 4.90 | 85,770 |
| Capitals Starting With T | 0 | - | 4.85 | 76,157 |
| Capitals Starting With W | 0 | - | 4.87 | 91,297 |
| Capitals Starting With A | 0 | - | 4.97 | 127,885 |
| Capitals Starting With B | 0 | - | 4.89 | 118,457 |
| Capitals Starting With D | 0 | - | 4.93 | 96,415 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,014 |
| Olympic Host Countries | 0 | - | 4.98 | 200,718 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,817 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,226 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 309,391 |
| The Only European Country ... | 0 | - | 4.91 | 216,599 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,231 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,111 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,649 |
| Countries of Africa | 0 | - | 5.00 | 2,536,683 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,998 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,828 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,983 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,705 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,151 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,133 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,746 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,607 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,599 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,430 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,873 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,141 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,303 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,885 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,938 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,977 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,267 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,189 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,737 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,248 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,534 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,237 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,239 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,385 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,863 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,142 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,558 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,664 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,957 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,014 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,082 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,869 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,791 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,183 |
| Former Capitals | 0 | - | 4.88 | 71,452 |
| Capital Cities Chain | 0 | - | 4.84 | 82,724 |
| Coldest World Capitals | 0 | - | 4.95 | 133,555 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,556 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,762 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,884 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,550 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,632 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,685 |
| Countries of the Middle East | 0 | - | 4.96 | 201,154 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,277 |
| Slavic Countries | 0 | - | 4.96 | 111,652 |
| African Island Countries | 0 | - | 4.96 | 101,622 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,874 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,185 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 47,007 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,948 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,113 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,112 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,888 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,505 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,498 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,119 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,962 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,652 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,728 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,604 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,219 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,197 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,571 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,225 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,143 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,989 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,255 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,021 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,864 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,830 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,315 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,819 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,813 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,421 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,258 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,214 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,408 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,736 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,958 |
| Ancient City to Country | 0 | - | 4.70 | 108,024 |
| Official Cities in the UK | 0 | - | 4.89 | 283,681 |
| City-States | 0 | - | 4.53 | 37,261 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,131 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,670 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,766 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,186 |
| Divided World City Name Puzzle #2 | 0 | - | 4.84 | 37,012 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,484 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,110 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,540 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,518 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,238 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 58,911 |
