| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,309 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,127 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,413 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,040 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,090 |
| Random European Capital to Country | 0 | - | 4.98 | 189,253 |
| Random European Country to Capital | 0 | - | 4.92 | 147,480 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,419 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,438 |
| Random African Capital to Country | 0 | - | 4.97 | 99,744 |
| Random African Country to Capital | 0 | - | 4.94 | 70,242 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,328 |
| Europe Capital to Country | 0 | - | 4.99 | 247,962 |
| Asia Capital to Country | 0 | - | 4.96 | 125,777 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,495 |
| European Capitals by Map | 0 | - | 4.99 | 136,327 |
| African Capitals by Map | 0 | - | 4.99 | 132,196 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,154 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,213 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,645 |
| European Coastal Capitals | 0 | - | 4.95 | 89,790 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,197 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,870 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,882 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,431 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,815 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,155 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,365 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,367 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,943 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,682 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,427 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,145 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,194 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,722 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,476 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,786 |
| Capitals of the Stans | 0 | - | 4.95 | 26,414 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,310 |
| Countries with Megacities | 0 | - | 4.99 | 247,041 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,184 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,015 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,608 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,924 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,801 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,411 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,968 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,666 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,616 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,651 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,475 |
| Countries by Capital City | 0 | - | 5.00 | 66,682 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,351 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,914 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,426 |
| Moved Capital Cities | 0 | - | 4.96 | 73,598 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,907 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,682 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,592 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,280 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,700 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,469 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,473 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,208 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,859 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,960 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,904 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,502 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,624 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,292 |
| North American Sports Cities | 0 | - | 4.83 | 170,925 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,922 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,749 |
| Name a City - European Countries | 0 | - | 4.92 | 64,426 |
| Cities by Former Name | 0 | - | 4.84 | 90,990 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,695 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,251 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,970 |
| World Capitals by Map | 0 | - | 5.00 | 283,265 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,683 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,248 |
| Random Country to Capital | 0 | - | 4.98 | 911,756 |
| Capitals Starting With H | 0 | - | 4.90 | 91,081 |
| Capitals Starting With K | 0 | - | 4.85 | 75,705 |
| Capitals Starting With L | 0 | - | 4.81 | 86,859 |
| Capitals Starting With M | 0 | - | 4.93 | 106,092 |
| Capitals Starting With P | 0 | - | 4.88 | 77,211 |
| Capitals Starting With R | 0 | - | 4.87 | 80,994 |
| Capitals Starting With S | 0 | - | 4.89 | 84,829 |
| Capitals Starting With T | 0 | - | 4.84 | 75,314 |
| Capitals Starting With W | 0 | - | 4.89 | 90,627 |
| Capitals Starting With A | 0 | - | 4.97 | 126,576 |
| Capitals Starting With B | 0 | - | 4.89 | 117,320 |
| Capitals Starting With D | 0 | - | 4.93 | 95,409 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,046 |
| Olympic Host Countries | 0 | - | 4.98 | 198,913 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,833 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,605 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,705 |
| The Only European Country ... | 0 | - | 4.91 | 213,907 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,182 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,585 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,218 |
| Countries of Africa | 0 | - | 5.00 | 2,508,463 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,807 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,277 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,641 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,841 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,552 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,893 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,438 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,138 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,264 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,161 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,364 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,968 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,423 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,614 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,312 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,563 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,501 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,318 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,297 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,626 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,583 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,827 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,232 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,145 |
| Southernmost Major Cities | 0 | - | 4.44 | 51,112 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,586 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,025 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,323 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,380 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,214 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,175 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,856 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,709 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,356 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,226 |
| Former Capitals | 0 | - | 4.88 | 71,147 |
| Capital Cities Chain | 0 | - | 4.84 | 81,931 |
| Coldest World Capitals | 0 | - | 4.95 | 133,053 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,811 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,906 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,009 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,385 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,006 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,391 |
| Countries of the Middle East | 0 | - | 4.96 | 198,960 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,283 |
| Slavic Countries | 0 | - | 4.96 | 110,874 |
| African Island Countries | 0 | - | 4.96 | 100,804 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,504 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,494 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 45,048 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,142 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,142 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,940 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,739 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,508 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,147 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,753 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,243 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,644 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,727 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,790 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,162 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,180 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,307 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,595 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,294 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,438 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,269 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,514 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,204 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,001 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,028 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,880 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,014 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,622 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,831 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,419 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,852 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,945 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,615 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,013 |
| Ancient City to Country | 0 | - | 4.70 | 107,618 |
| Official Cities in the UK | 0 | - | 4.89 | 280,618 |
| City-States | 0 | - | 4.53 | 37,105 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,790 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,482 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,110 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,051 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,477 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,816 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,968 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,466 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,117 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,158 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 58,691 |
