| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,242 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,080 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,937 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,558 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,992 |
| Random European Capital to Country | 0 | - | 4.98 | 189,147 |
| Random European Country to Capital | 0 | - | 4.92 | 147,396 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,340 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,371 |
| Random African Capital to Country | 0 | - | 4.97 | 99,711 |
| Random African Country to Capital | 0 | - | 4.94 | 70,197 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,518 |
| Europe Capital to Country | 0 | - | 4.99 | 247,451 |
| Asia Capital to Country | 0 | - | 4.96 | 125,709 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,398 |
| European Capitals by Map | 0 | - | 4.99 | 136,151 |
| African Capitals by Map | 0 | - | 4.99 | 132,113 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,069 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,145 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,576 |
| European Coastal Capitals | 0 | - | 4.95 | 89,713 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,169 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,635 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,685 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,407 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,743 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,490 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,350 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,081 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,759 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,631 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,378 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,078 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,139 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,680 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,414 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,743 |
| Capitals of the Stans | 0 | - | 4.95 | 26,393 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,001 |
| Countries with Megacities | 0 | - | 4.99 | 246,544 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,923 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,801 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,373 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,761 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,699 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,373 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,889 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,618 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,572 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,559 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,351 |
| Countries by Capital City | 0 | - | 5.00 | 66,571 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,291 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,872 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,393 |
| Moved Capital Cities | 0 | - | 4.96 | 73,559 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,784 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,647 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,509 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,512 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,483 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,249 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,411 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,178 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,780 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,831 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,828 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,444 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,544 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,209 |
| North American Sports Cities | 0 | - | 4.83 | 170,855 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,906 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,696 |
| Name a City - European Countries | 0 | - | 4.92 | 64,344 |
| Cities by Former Name | 0 | - | 4.84 | 90,937 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,673 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,223 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,881 |
| World Capitals by Map | 0 | - | 5.00 | 283,087 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,639 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,469 |
| Random Country to Capital | 0 | - | 4.98 | 911,299 |
| Capitals Starting With H | 0 | - | 4.90 | 90,659 |
| Capitals Starting With K | 0 | - | 4.85 | 75,652 |
| Capitals Starting With L | 0 | - | 4.81 | 86,796 |
| Capitals Starting With M | 0 | - | 4.93 | 106,002 |
| Capitals Starting With P | 0 | - | 4.88 | 77,154 |
| Capitals Starting With R | 0 | - | 4.87 | 80,942 |
| Capitals Starting With S | 0 | - | 4.89 | 84,776 |
| Capitals Starting With T | 0 | - | 4.84 | 75,264 |
| Capitals Starting With W | 0 | - | 4.89 | 90,584 |
| Capitals Starting With A | 0 | - | 4.97 | 126,499 |
| Capitals Starting With B | 0 | - | 4.89 | 117,245 |
| Capitals Starting With D | 0 | - | 4.93 | 95,344 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,898 |
| Olympic Host Countries | 0 | - | 4.98 | 198,839 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,778 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,472 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,246 |
| The Only European Country ... | 0 | - | 4.91 | 213,714 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,040 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,457 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,180 |
| Countries of Africa | 0 | - | 5.00 | 2,506,591 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,790 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,246 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,605 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,796 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,509 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,873 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,368 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,938 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,154 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,115 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,264 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,861 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,359 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,543 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,256 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,501 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,406 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,242 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,221 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,569 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,530 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,769 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,167 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,140 |
| Southernmost Major Cities | 0 | - | 4.44 | 51,082 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,567 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,017 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,298 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,315 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,156 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,048 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,753 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,637 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,308 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,112 |
| Former Capitals | 0 | - | 4.88 | 71,128 |
| Capital Cities Chain | 0 | - | 4.84 | 81,887 |
| Coldest World Capitals | 0 | - | 4.95 | 133,027 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,763 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,798 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,956 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,308 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,422 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,231 |
| Countries of the Middle East | 0 | - | 4.96 | 198,838 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,216 |
| Slavic Countries | 0 | - | 4.96 | 110,820 |
| African Island Countries | 0 | - | 4.96 | 100,746 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,482 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,286 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,954 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,073 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,040 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,258 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,668 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,447 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,038 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,743 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,219 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,573 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,671 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,730 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,133 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,138 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,256 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,540 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,218 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,375 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,201 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,479 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,168 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,852 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,927 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,794 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,958 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,601 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,807 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,341 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,836 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,911 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,556 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 219,982 |
| Ancient City to Country | 0 | - | 4.70 | 107,593 |
| Official Cities in the UK | 0 | - | 4.89 | 280,414 |
| City-States | 0 | - | 4.53 | 37,088 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,771 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,475 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,080 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,037 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,458 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,764 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,956 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,462 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,089 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,153 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 58,672 |
