| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,253 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,093 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,024 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,671 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,010 |
| Random European Capital to Country | 0 | - | 4.98 | 189,168 |
| Random European Country to Capital | 0 | - | 4.92 | 147,421 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,343 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,377 |
| Random African Capital to Country | 0 | - | 4.97 | 99,716 |
| Random African Country to Capital | 0 | - | 4.94 | 70,225 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,106 |
| Europe Capital to Country | 0 | - | 4.99 | 247,567 |
| Asia Capital to Country | 0 | - | 4.96 | 125,721 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,416 |
| European Capitals by Map | 0 | - | 4.99 | 136,204 |
| African Capitals by Map | 0 | - | 4.99 | 132,120 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,107 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,157 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,584 |
| European Coastal Capitals | 0 | - | 4.95 | 89,720 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,174 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,710 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,727 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,411 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,759 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,606 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,590 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,138 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,788 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,640 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,394 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,087 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,161 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,688 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,422 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,750 |
| Capitals of the Stans | 0 | - | 4.95 | 26,398 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,063 |
| Countries with Megacities | 0 | - | 4.99 | 246,647 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,988 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,848 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,416 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,783 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,719 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,380 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,906 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,629 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,583 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,579 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,390 |
| Countries by Capital City | 0 | - | 5.00 | 66,590 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,306 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,887 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,397 |
| Moved Capital Cities | 0 | - | 4.96 | 73,567 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,803 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,656 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,521 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,684 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,530 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,282 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,417 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,187 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,796 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,862 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,843 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,456 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,561 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,224 |
| North American Sports Cities | 0 | - | 4.83 | 170,864 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,908 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,707 |
| Name a City - European Countries | 0 | - | 4.92 | 64,359 |
| Cities by Former Name | 0 | - | 4.84 | 90,947 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,677 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,228 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,901 |
| World Capitals by Map | 0 | - | 5.00 | 283,121 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,645 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,617 |
| Random Country to Capital | 0 | - | 4.98 | 911,408 |
| Capitals Starting With H | 0 | - | 4.90 | 90,747 |
| Capitals Starting With K | 0 | - | 4.85 | 75,663 |
| Capitals Starting With L | 0 | - | 4.81 | 86,808 |
| Capitals Starting With M | 0 | - | 4.93 | 106,019 |
| Capitals Starting With P | 0 | - | 4.88 | 77,166 |
| Capitals Starting With R | 0 | - | 4.87 | 80,953 |
| Capitals Starting With S | 0 | - | 4.89 | 84,786 |
| Capitals Starting With T | 0 | - | 4.84 | 75,277 |
| Capitals Starting With W | 0 | - | 4.89 | 90,598 |
| Capitals Starting With A | 0 | - | 4.97 | 126,523 |
| Capitals Starting With B | 0 | - | 4.89 | 117,263 |
| Capitals Starting With D | 0 | - | 4.93 | 95,360 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,922 |
| Olympic Host Countries | 0 | - | 4.98 | 198,855 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,794 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,497 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,352 |
| The Only European Country ... | 0 | - | 4.91 | 213,753 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,072 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,480 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,190 |
| Countries of Africa | 0 | - | 5.00 | 2,507,005 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,793 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,257 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,612 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,805 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,516 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,875 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,380 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,981 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,177 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,125 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,281 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,884 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,368 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,556 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,275 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,512 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,425 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,261 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,241 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,585 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,544 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,782 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,190 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,142 |
| Southernmost Major Cities | 0 | - | 4.44 | 51,088 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,569 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,020 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,299 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,327 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,172 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,072 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,777 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,653 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,315 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,133 |
| Former Capitals | 0 | - | 4.88 | 71,130 |
| Capital Cities Chain | 0 | - | 4.84 | 81,898 |
| Coldest World Capitals | 0 | - | 4.95 | 133,035 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,775 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,836 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,972 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,320 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,514 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,263 |
| Countries of the Middle East | 0 | - | 4.96 | 198,860 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,225 |
| Slavic Countries | 0 | - | 4.96 | 110,830 |
| African Island Countries | 0 | - | 4.96 | 100,762 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,488 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,324 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,972 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,087 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,057 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,381 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,681 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,461 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,058 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,744 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,223 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,587 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,684 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,737 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,141 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,146 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,264 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,545 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,239 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,379 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,213 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,491 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,171 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,879 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,951 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,812 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,963 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,606 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,815 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,362 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,840 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,915 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,570 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 219,990 |
| Ancient City to Country | 0 | - | 4.70 | 107,596 |
| Official Cities in the UK | 0 | - | 4.89 | 280,452 |
| City-States | 0 | - | 4.53 | 37,091 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,775 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,477 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,085 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,040 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,462 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,782 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,957 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,464 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,095 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,153 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 58,673 |
