| Biggest Countries by Population | 0 | - | 5.00 | 1,455,719 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,887 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,792 |
| World Capitals Quiz | 0 | - | 5.00 | 5,112,364 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,576 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,982 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,784 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,090 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,402 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,771 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,335 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,766 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 228,083 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,444 |
| Countries with Megacities | 0 | - | 4.99 | 267,722 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,094 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,304 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,429 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,409 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,475 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,524 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,072 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,316 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,404 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,339 |
| Countries by Capital City | 0 | - | 5.00 | 69,576 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,107 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,332 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,931 |
| Moved Capital Cities | 0 | - | 4.96 | 74,717 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,726 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,310 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,759 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,554 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,440 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,482 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,980 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,342 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,704 |
| North American Sports Cities | 0 | - | 4.82 | 173,265 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,595 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,030 |
| Name a City - European Countries | 0 | - | 4.89 | 66,349 |
| Cities by Former Name | 0 | - | 4.83 | 92,166 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,972 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,031 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,948 |
| World Capitals by Map | 0 | - | 5.00 | 289,836 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,912 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,158 |
| Random European Capital to Country | 0 | - | 4.98 | 192,315 |
| Random European Country to Capital | 0 | - | 4.93 | 166,036 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,077 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,539 |
| Random African Capital to Country | 0 | - | 4.97 | 101,445 |
| Random African Country to Capital | 0 | - | 4.94 | 71,856 |
| Capitals Starting With H | 0 | - | 4.91 | 93,424 |
| Capitals Starting With K | 0 | - | 4.88 | 84,489 |
| Capitals Starting With L | 0 | - | 4.81 | 96,056 |
| Capitals Starting With M | 0 | - | 4.94 | 109,331 |
| Capitals Starting With P | 0 | - | 4.88 | 79,104 |
| Capitals Starting With R | 0 | - | 4.88 | 82,588 |
| Capitals Starting With S | 0 | - | 4.90 | 86,673 |
| Capitals Starting With T | 0 | - | 4.86 | 76,926 |
| Capitals Starting With W | 0 | - | 4.87 | 91,781 |
| Capitals Starting With A | 0 | - | 4.97 | 129,249 |
| Capitals Starting With B | 0 | - | 4.89 | 119,623 |
| Capitals Starting With D | 0 | - | 4.94 | 97,301 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,133 |
| Olympic Host Countries | 0 | - | 4.98 | 202,170 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,208 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,420 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,806 |
| The Only European Country ... | 0 | - | 4.91 | 219,465 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,247 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,773 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,971 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,292 |
| Countries with Most Tourists with Exceptions | 0 | - | 4.97 | 127,054 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,875 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,755 |
| Random Capital to Country | 0 | - | 4.99 | 2,603,668 |
| Random Country to Capital | 0 | - | 4.98 | 929,723 |
| Countries of Africa | 0 | - | 5.00 | 2,563,621 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,338 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,773 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,143 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,238 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,955 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,534 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,960 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,528 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,818 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,864 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,017 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,247 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,991 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,599 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,270 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,565 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,915 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,851 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,822 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,648 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,040 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,727 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,292 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,784 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,677 |
| Former Capitals | 0 | - | 4.88 | 71,719 |
| Europe Capital to Country | 0 | - | 4.99 | 252,498 |
| Asia Capital to Country | 0 | - | 4.96 | 127,669 |
| Capital Cities Chain | 0 | - | 4.84 | 83,492 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,228 |
| Solve the Secret Capital City | 0 | - | 4.81 | 164,691 |
| European Capitals by Map | 0 | - | 4.99 | 142,443 |
| African Capitals by Map | 0 | - | 4.99 | 142,521 |
| Coldest World Capitals | 0 | - | 4.95 | 134,250 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,098 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,088 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,346 |
| European Coastal Capitals | 0 | - | 4.95 | 91,462 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,257 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,186 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,136 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,231 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,235 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,695 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,851 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,166 |
| Countries of the Middle East | 0 | - | 4.96 | 203,196 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,333 |
| Slavic Countries | 0 | - | 4.96 | 112,479 |
| African Island Countries | 0 | - | 4.96 | 102,701 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,231 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,685 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,502 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,248 |
| Coldest Countries | 0 | - | 4.97 | 139,509 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 65,032 |
| Countries Whose Airlines Carried the Most Passengers | 0 | - | 4.95 | 73,110 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,914 |
| Countries with the Most Nobel Prizes | 0 | - | 4.86 | 91,083 |
| Countries with the Least Precipitation | 0 | - | 4.90 | 83,098 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,911 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,973 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,446 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,903 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,328 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,088 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,734 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,689 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,064 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,957 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,493 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,029 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,653 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,049 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,283 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 47,152 |
| All-Time Winter Olympics Medal Table | 0 | - | 4.46 | 178,639 |
| Boundary Waters | 0 | - | 4.92 | 88,824 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,452 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,810 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,512 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,046 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,863 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,406 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,235 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 105,063 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,014 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,960 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,084 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,539 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,872 |
| Unusual U.S. City Names | 0 | - | 4.52 | 28,045 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,593 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,647 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.38 | 54,280 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,789 |
| Ancient City to Country | 0 | - | 4.72 | 108,394 |
| Official Cities in the UK | 0 | - | 4.89 | 286,750 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,206 |
| City-States | 0 | - | 4.53 | 37,435 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,608 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,535 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,854 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,457 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,298 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,226 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,349 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,603 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,916 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,291 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 59,223 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,509 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,600 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,341 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,702 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,277 |
