| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,438 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,212 |
| Africa Capitals Quiz | 0 | - | 4.99 | 731,302 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,862 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,160 |
| Random European Capital to Country | 0 | - | 4.98 | 189,394 |
| Random European Country to Capital | 0 | - | 4.92 | 147,599 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,466 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,544 |
| Random African Capital to Country | 0 | - | 4.97 | 99,800 |
| Random African Country to Capital | 0 | - | 4.94 | 70,309 |
| World Capitals Quiz | 0 | - | 5.00 | 5,037,419 |
| Europe Capital to Country | 0 | - | 4.99 | 248,200 |
| Asia Capital to Country | 0 | - | 4.96 | 125,865 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,682 |
| European Capitals by Map | 0 | - | 4.99 | 136,784 |
| African Capitals by Map | 0 | - | 4.99 | 132,360 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,376 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,338 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,747 |
| European Coastal Capitals | 0 | - | 4.95 | 89,895 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,238 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,311 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,124 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,469 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,021 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,044 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,771 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,301 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,766 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,522 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,286 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,258 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,779 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,603 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,841 |
| Capitals of the Stans | 0 | - | 4.95 | 26,482 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,664 |
| Countries with Megacities | 0 | - | 4.99 | 247,654 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,517 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,221 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,907 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,151 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,992 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,513 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,166 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,791 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,748 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,864 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,692 |
| Countries by Capital City | 0 | - | 5.00 | 66,888 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,455 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,017 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,492 |
| Moved Capital Cities | 0 | - | 4.96 | 73,686 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,150 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,741 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,752 |
| Countries by Sports in 60 Seconds | 0 | - | 4.91 | 141,854 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,532 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,013 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,807 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,592 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,248 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,040 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,305 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,054 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,570 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,837 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,424 |
| North American Sports Cities | 0 | - | 4.83 | 171,035 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,954 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,830 |
| Name a City - European Countries | 0 | - | 4.91 | 64,577 |
| Name a Valid World City | 0 | - | 4.83 | 70,268 |
| Cities by Former Name | 0 | - | 4.84 | 91,056 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,749 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,297 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,099 |
| World Capitals by Map | 0 | - | 5.00 | 283,848 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,765 |
| Random Capital to Country | 0 | - | 4.99 | 2,579,809 |
| Random Country to Capital | 0 | - | 4.98 | 912,639 |
| Capitals Starting With H | 0 | - | 4.90 | 91,406 |
| Capitals Starting With K | 0 | - | 4.85 | 75,783 |
| Capitals Starting With L | 0 | - | 4.81 | 86,944 |
| Capitals Starting With M | 0 | - | 4.93 | 106,248 |
| Capitals Starting With P | 0 | - | 4.88 | 77,282 |
| Capitals Starting With R | 0 | - | 4.87 | 81,062 |
| Capitals Starting With S | 0 | - | 4.89 | 84,912 |
| Capitals Starting With T | 0 | - | 4.84 | 75,380 |
| Capitals Starting With W | 0 | - | 4.89 | 90,702 |
| Capitals Starting With A | 0 | - | 4.97 | 126,687 |
| Capitals Starting With B | 0 | - | 4.89 | 117,411 |
| Capitals Starting With D | 0 | - | 4.93 | 95,499 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,280 |
| Olympic Host Countries | 0 | - | 4.98 | 199,054 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,925 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,780 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 304,316 |
| The Only European Country ... | 0 | - | 4.91 | 214,204 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,404 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,796 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,329 |
| Countries of Africa | 0 | - | 5.00 | 2,511,710 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,831 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,343 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,692 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,969 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,626 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,915 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,388 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,419 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,210 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,512 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,091 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,514 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,710 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,359 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,681 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,635 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,432 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,371 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,722 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,648 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,906 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,332 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,174 |
| Southernmost Major Cities | 0 | - | 4.48 | 56,131 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,635 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,039 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,348 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,468 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,296 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,343 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,046 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,813 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,398 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,380 |
| Former Capitals | 0 | - | 4.88 | 71,192 |
| Capital Cities Chain | 0 | - | 4.84 | 82,008 |
| Coldest World Capitals | 0 | - | 4.95 | 133,098 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,908 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,049 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,096 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,738 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,003 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,641 |
| Countries of the Middle East | 0 | - | 4.96 | 199,196 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,393 |
| Slavic Countries | 0 | - | 4.96 | 110,972 |
| African Island Countries | 0 | - | 4.96 | 100,896 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,553 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,791 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 45,196 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,252 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,266 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,013,380 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,908 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,623 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,316 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,911 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,791 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,831 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,910 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,212 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,263 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,417 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,665 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,404 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,517 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,360 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,594 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,335 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,181 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,178 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,010 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,081 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,647 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,878 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,534 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,898 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,010 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,696 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 220,181 |
| Ancient City to Country | 0 | - | 4.70 | 107,665 |
| Official Cities in the UK | 0 | - | 4.89 | 280,978 |
| City-States | 0 | - | 4.53 | 37,128 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,826 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,519 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,167 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,068 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,528 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,895 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,995 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,481 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,171 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,166 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 58,710 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,336 |
