| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,768 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 228,083 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,556 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,885 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,759 |
| World Capitals Quiz | 0 | - | 5.00 | 5,112,425 |
| Europe Capital to Country | 0 | - | 4.99 | 252,500 |
| Asia Capital to Country | 0 | - | 4.96 | 127,671 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,230 |
| European Capitals by Map | 0 | - | 4.99 | 142,444 |
| African Capitals by Map | 0 | - | 4.99 | 142,524 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,100 |
| 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 | 91,463 |
| 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 | 226,140 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,232 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,158 |
| Random European Capital to Country | 0 | - | 4.98 | 192,319 |
| 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 | 103,540 |
| Random African Capital to Country | 0 | - | 4.97 | 101,445 |
| Random African Country to Capital | 0 | - | 4.94 | 71,856 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,410 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,787 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,517 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,601 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,345 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,702 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,279 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,471 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,652 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,047 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,803 |
| Capitals of the Stans | 0 | - | 4.95 | 27,221 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,451 |
| Countries with Megacities | 0 | - | 4.99 | 267,736 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,096 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,305 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,432 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,409 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,480 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,527 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,074 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,317 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,405 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,342 |
| Countries by Capital City | 0 | - | 5.00 | 69,577 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,108 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,336 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,932 |
| Moved Capital Cities | 0 | - | 4.96 | 74,718 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,852 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,727 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,741 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,889 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,316 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,766 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,910 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,669 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,759 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,441 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,487 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,793 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,982 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,342 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,706 |
| North American Sports Cities | 0 | - | 4.82 | 173,266 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,596 |
| 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 | 92,168 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,972 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,031 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,570 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,924 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,948 |
| World Capitals by Map | 0 | - | 5.00 | 289,841 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,912 |
| Capitals Starting With H | 0 | - | 4.91 | 93,426 |
| Capitals Starting With K | 0 | - | 4.88 | 84,493 |
| Capitals Starting With L | 0 | - | 4.81 | 96,060 |
| Capitals Starting With M | 0 | - | 4.94 | 109,335 |
| Capitals Starting With P | 0 | - | 4.88 | 79,106 |
| Capitals Starting With R | 0 | - | 4.88 | 82,591 |
| Capitals Starting With S | 0 | - | 4.90 | 86,675 |
| Capitals Starting With T | 0 | - | 4.86 | 76,927 |
| Capitals Starting With W | 0 | - | 4.87 | 91,781 |
| Capitals Starting With A | 0 | - | 4.97 | 129,251 |
| Capitals Starting With B | 0 | - | 4.89 | 119,625 |
| Capitals Starting With D | 0 | - | 4.94 | 97,302 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,135 |
| Olympic Host Countries | 0 | - | 4.98 | 202,171 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,212 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,422 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,815 |
| The Only European Country ... | 0 | - | 4.91 | 219,472 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,249 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,776 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,971 |
| Random Capital to Country | 0 | - | 4.99 | 2,603,684 |
| Random Country to Capital | 0 | - | 4.98 | 929,744 |
| Countries of Africa | 0 | - | 5.00 | 2,563,650 |
| 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 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,196 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,308 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,422 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,539 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,808 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,370 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,539 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,577 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,960 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,531 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,819 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,867 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,019 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,247 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,819 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,985 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,993 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,599 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,271 |
| 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 | 97,853 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,823 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,649 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,041 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,730 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,293 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,786 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,678 |
| Former Capitals | 0 | - | 4.88 | 71,719 |
| Capital Cities Chain | 0 | - | 4.84 | 83,494 |
| Solve the Secret Capital City | 0 | - | 4.81 | 164,692 |
| Coldest World Capitals | 0 | - | 4.95 | 134,255 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,236 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,320 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,697 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,860 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,170 |
| Countries of the Middle East | 0 | - | 4.96 | 203,200 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,334 |
| Slavic Countries | 0 | - | 4.96 | 112,479 |
| African Island Countries | 0 | - | 4.96 | 102,701 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,232 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,686 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,503 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,784 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,092 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,923 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,975 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,450 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,904 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,329 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,090 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,735 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,692 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,065 |
| 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 | 118,030 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,653 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,050 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,285 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 47,176 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,323 |
| Boundary Waters | 0 | - | 4.92 | 88,825 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,452 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,811 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,518 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,046 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,867 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,408 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,238 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 105,065 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,015 |
| 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 | 23,875 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,337 |
| 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 | 95,648 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.38 | 54,280 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,790 |
| Ancient City to Country | 0 | - | 4.72 | 108,394 |
| Official Cities in the UK | 0 | - | 4.89 | 286,752 |
| 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 |
