| Five Most Inland Capital Cities by Continent | 0 | - | 4.91 | 13,158 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,602 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,895 |
| Africa Capitals Quiz | 0 | - | 4.99 | 737,734 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,948 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,671 |
| Random European Capital to Country | 0 | - | 4.98 | 190,919 |
| Random European Country to Capital | 0 | - | 4.93 | 165,129 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,451 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,762 |
| Random African Capital to Country | 0 | - | 4.97 | 100,730 |
| Random African Country to Capital | 0 | - | 4.94 | 71,212 |
| World Capitals Quiz | 0 | - | 5.00 | 5,073,996 |
| Europe Capital to Country | 0 | - | 4.99 | 250,312 |
| Asia Capital to Country | 0 | - | 4.96 | 126,666 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,886 |
| European Capitals by Map | 0 | - | 4.99 | 139,180 |
| African Capitals by Map | 0 | - | 4.99 | 133,797 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,404 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,078 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,427 |
| European Coastal Capitals | 0 | - | 4.95 | 90,608 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,588 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,032 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,067 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,833 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,141 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,309 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,586,476 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,463 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,822 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,488 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,042 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,276 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,843 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,178 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,379 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,293 |
| Capitals of the Stans | 0 | - | 4.95 | 26,843 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,472 |
| Countries with Megacities | 0 | - | 4.99 | 263,445 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,308 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,255 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,605 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,291 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,134 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,104 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,252 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,404 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,495 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,228 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,001 |
| Countries by Capital City | 0 | - | 5.00 | 68,280 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,166 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,650 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,197 |
| Moved Capital Cities | 0 | - | 4.96 | 74,211 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,393 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,556 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,161 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,348 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,765 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,356 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,440 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,491 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,523 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,458 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,722 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,817 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,912 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,395 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,543 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,089 |
| North American Sports Cities | 0 | - | 4.83 | 172,384 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,318 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,396 |
| Name a City - European Countries | 0 | - | 4.90 | 65,391 |
| Name a Valid World City | 0 | - | 4.83 | 71,202 |
| Cities by Former Name | 0 | - | 4.83 | 91,576 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,397 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,657 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,212 |
| World Capitals by Map | 0 | - | 5.00 | 286,467 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,318 |
| Random Capital to Country | 0 | - | 4.99 | 2,591,489 |
| Random Country to Capital | 0 | - | 4.98 | 920,605 |
| Capitals Starting With H | 0 | - | 4.91 | 92,552 |
| Capitals Starting With K | 0 | - | 4.88 | 83,510 |
| Capitals Starting With L | 0 | - | 4.81 | 88,087 |
| Capitals Starting With M | 0 | - | 4.93 | 107,794 |
| Capitals Starting With P | 0 | - | 4.88 | 78,207 |
| Capitals Starting With R | 0 | - | 4.87 | 81,829 |
| Capitals Starting With S | 0 | - | 4.90 | 85,785 |
| Capitals Starting With T | 0 | - | 4.85 | 76,175 |
| Capitals Starting With W | 0 | - | 4.87 | 91,307 |
| Capitals Starting With A | 0 | - | 4.97 | 127,919 |
| Capitals Starting With B | 0 | - | 4.89 | 118,479 |
| Capitals Starting With D | 0 | - | 4.93 | 96,441 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,054 |
| Olympic Host Countries | 0 | - | 4.98 | 200,745 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,838 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,271 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 309,479 |
| The Only European Country ... | 0 | - | 4.91 | 216,663 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,285 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,153 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,656 |
| Countries of Africa | 0 | - | 5.00 | 2,537,360 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,000 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,831 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,998 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,714 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,166 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,138 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,456 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,812 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,634 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,609 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,446 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,900 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,160 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,318 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,890 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,963 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,002 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,291 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,199 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,755 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,253 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,544 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,254 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,242 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,391 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,867 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,142 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,559 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,687 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,977 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,048 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,104 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,892 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,800 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,206 |
| Former Capitals | 0 | - | 4.88 | 71,458 |
| Capital Cities Chain | 0 | - | 4.84 | 82,742 |
| Coldest World Capitals | 0 | - | 4.95 | 133,565 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,569 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,773 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,902 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,572 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,808 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,742 |
| Countries of the Middle East | 0 | - | 4.96 | 201,188 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,299 |
| Slavic Countries | 0 | - | 4.96 | 111,669 |
| African Island Countries | 0 | - | 4.96 | 101,640 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,886 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,234 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 47,044 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,971 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,127 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,348 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,905 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,519 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,533 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,946 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,594 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,999 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,678 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,746 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,613 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,235 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,216 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,584 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,250 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,161 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,003 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,270 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,045 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,904 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,860 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,339 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,839 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,818 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,435 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,283 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,224 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,420 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,743 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,970 |
| Ancient City to Country | 0 | - | 4.70 | 108,034 |
| Official Cities in the UK | 0 | - | 4.89 | 283,766 |
| City-States | 0 | - | 4.53 | 37,264 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,137 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,678 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,777 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,189 |
| Divided World City Name Puzzle #2 | 0 | - | 4.84 | 37,030 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,500 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,114 |
