| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,239 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,078 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,927 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,544 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,992 |
| Random European Capital to Country | 0 | - | 4.98 | 189,146 |
| 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 | 101,370 |
| Random African Capital to Country | 0 | - | 4.97 | 99,710 |
| Random African Country to Capital | 0 | - | 4.94 | 70,196 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,435 |
| Europe Capital to Country | 0 | - | 4.99 | 247,448 |
| Asia Capital to Country | 0 | - | 4.96 | 125,706 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,397 |
| European Capitals by Map | 0 | - | 4.99 | 136,145 |
| African Capitals by Map | 0 | - | 4.99 | 132,112 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,065 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,143 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,575 |
| European Coastal Capitals | 0 | - | 4.95 | 89,711 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,169 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,634 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,684 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,406 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,740 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,485 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,326 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,076 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,753 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,631 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,375 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,077 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,138 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,680 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,413 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,741 |
| Capitals of the Stans | 0 | - | 4.95 | 26,391 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,000 |
| Countries with Megacities | 0 | - | 4.99 | 246,525 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,919 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,800 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,370 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,759 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,696 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,371 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,887 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,615 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,569 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,558 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,345 |
| Countries by Capital City | 0 | - | 5.00 | 66,570 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,287 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,872 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,391 |
| Moved Capital Cities | 0 | - | 4.96 | 73,558 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,782 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,646 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,506 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,493 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,481 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,244 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,404 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,176 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,779 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,828 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,826 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,442 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,542 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,207 |
| North American Sports Cities | 0 | - | 4.83 | 170,849 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,905 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,696 |
| Name a City - European Countries | 0 | - | 4.92 | 64,341 |
| Cities by Former Name | 0 | - | 4.84 | 90,935 |
| 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 | 67,879 |
| World Capitals by Map | 0 | - | 5.00 | 283,081 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,636 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,450 |
| Random Country to Capital | 0 | - | 4.98 | 911,264 |
| Capitals Starting With H | 0 | - | 4.90 | 90,645 |
| Capitals Starting With K | 0 | - | 4.85 | 75,650 |
| Capitals Starting With L | 0 | - | 4.81 | 86,792 |
| Capitals Starting With M | 0 | - | 4.93 | 105,997 |
| Capitals Starting With P | 0 | - | 4.88 | 77,154 |
| Capitals Starting With R | 0 | - | 4.87 | 80,940 |
| Capitals Starting With S | 0 | - | 4.89 | 84,774 |
| Capitals Starting With T | 0 | - | 4.84 | 75,263 |
| Capitals Starting With W | 0 | - | 4.89 | 90,583 |
| Capitals Starting With A | 0 | - | 4.97 | 126,495 |
| Capitals Starting With B | 0 | - | 4.89 | 117,239 |
| Capitals Starting With D | 0 | - | 4.93 | 95,342 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,892 |
| Olympic Host Countries | 0 | - | 4.98 | 198,836 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,778 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,468 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,241 |
| The Only European Country ... | 0 | - | 4.91 | 213,705 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,036 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,453 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,179 |
| Countries of Africa | 0 | - | 5.00 | 2,506,542 |
| 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 | 94,502 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,872 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,367 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,935 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,150 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,114 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,262 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,860 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,359 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,540 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,256 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,499 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,405 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,240 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,221 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,565 |
| 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 | 96,164 |
| 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 | 95,296 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,314 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,156 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,044 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,750 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,635 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,308 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,105 |
| Former Capitals | 0 | - | 4.88 | 71,128 |
| Capital Cities Chain | 0 | - | 4.84 | 81,882 |
| Coldest World Capitals | 0 | - | 4.95 | 133,027 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,757 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,793 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,956 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,307 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,414 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,228 |
| Countries of the Middle East | 0 | - | 4.96 | 198,831 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,214 |
| Slavic Countries | 0 | - | 4.96 | 110,817 |
| African Island Countries | 0 | - | 4.96 | 100,742 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,480 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,284 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,948 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,071 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,040 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,234 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,665 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,445 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,033 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,741 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,219 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,570 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,670 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,727 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,132 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,137 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,256 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,536 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,216 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,373 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,201 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,477 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,161 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,847 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,926 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,791 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,955 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,601 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,806 |
| 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 | 219,979 |
| Ancient City to Country | 0 | - | 4.70 | 107,592 |
| Official Cities in the UK | 0 | - | 4.89 | 280,408 |
| 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 | 48,078 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,037 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,457 |
| 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 | 51,086 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,153 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 58,672 |
