| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,641 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,842 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,527 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,398 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,323 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,416 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,798 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,027 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,984 |
| Random European Capital to Country | 0 | - | 4.98 | 192,067 |
| Random European Country to Capital | 0 | - | 4.93 | 165,833 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,956 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,385 |
| Random African Capital to Country | 0 | - | 4.97 | 101,289 |
| Random African Country to Capital | 0 | - | 4.95 | 71,717 |
| World Capitals Quiz | 0 | - | 5.00 | 5,103,431 |
| Europe Capital to Country | 0 | - | 4.99 | 251,955 |
| Asia Capital to Country | 0 | - | 4.96 | 127,335 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,891 |
| European Capitals by Map | 0 | - | 4.99 | 141,954 |
| African Capitals by Map | 0 | - | 4.99 | 142,018 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,864 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,812 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,128 |
| European Coastal Capitals | 0 | - | 4.95 | 91,257 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,158 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,464 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,650 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,137 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,260 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,761 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,009 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,188 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,538 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,055 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,361 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,552 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,446 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,909 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,678 |
| Monarchies of Europe | 0 | - | 4.90 | 98,801 |
| Monarchies of Asia | 0 | - | 4.97 | 71,477 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,259 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,055 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,598,542 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,668 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,746 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,661 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,626 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,161 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,530 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,610 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,282 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,110 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,795 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,814 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,737 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,717 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,447 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,324 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,023 |
| Countries with Megacities | 0 | - | 4.99 | 266,866 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,737 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,044 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,054 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,169 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,217 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,284 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,944 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,167 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,164 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,071 |
| Countries by Capital City | 0 | - | 5.00 | 69,301 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,814 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,182 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,666 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,768 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,476 |
| Moved Capital Cities | 0 | - | 4.96 | 74,615 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,438 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,355 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 94,778 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,957 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,116 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,579 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,272 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,285 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,947 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,612 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,867 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,172 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,565 |
| North American Sports Cities | 0 | - | 4.83 | 173,089 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,548 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,926 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,391 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,910 |
| Cities by Former Name | 0 | - | 4.83 | 92,016 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,668 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,962 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,138 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,024 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,779 |
| World Capitals by Map | 0 | - | 5.00 | 289,206 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,790 |
| Random Capital to Country | 0 | - | 4.99 | 2,600,750 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,215 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,341 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,347 |
| Random Country to Capital | 0 | - | 4.98 | 927,391 |
| Capitals Starting With H | 0 | - | 4.91 | 93,303 |
| Capitals Starting With K | 0 | - | 4.89 | 84,376 |
| Capitals Starting With M | 0 | - | 4.94 | 109,124 |
| Capitals Starting With P | 0 | - | 4.88 | 78,975 |
| Capitals Starting With R | 0 | - | 4.88 | 82,481 |
| Capitals Starting With S | 0 | - | 4.90 | 86,545 |
| Capitals Starting With T | 0 | - | 4.85 | 76,812 |
| Capitals Starting With W | 0 | - | 4.87 | 91,721 |
| Capitals Starting With A | 0 | - | 4.97 | 129,058 |
| Capitals Starting With B | 0 | - | 4.89 | 119,459 |
| Capitals Starting With D | 0 | - | 4.94 | 97,171 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,604 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,295 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,644 |
| Olympic Host Countries | 0 | - | 4.98 | 201,884 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,786 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,999 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 313,538 |
| The Only European Country ... | 0 | - | 4.91 | 218,816 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,814 |
| Hindu Countries | 0 | - | 4.87 | 50,557 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,415 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,890 |
| Countries of Africa | 0 | - | 5.00 | 2,557,865 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,722 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,849 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,540 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,171 |
| Australia A-Z | 0 | - | 4.54 | 50,130 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,804 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,343 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,887 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,287 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,615 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,719 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,854 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,643 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,748 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,843 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,492 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,167 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,494 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,842 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,728 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,316 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,707 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,086 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,224 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,767 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,414 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,866 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,373 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,987 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,632 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,534 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,796 |
| Former Capitals | 0 | - | 4.88 | 71,658 |
| Capital Cities Chain | 0 | - | 4.84 | 83,318 |
| Coldest World Capitals | 0 | - | 4.95 | 134,133 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,094 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,194 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,516 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,802 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,118 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,579 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,607 |
| Countries of the Middle East | 0 | - | 4.96 | 202,573 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,121 |
| Slavic Countries | 0 | - | 4.96 | 112,319 |
| African Island Countries | 0 | - | 4.96 | 102,395 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,152 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,045 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,291 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 53,003 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,603 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,871 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,030,672 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,758 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,278 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,524 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,114 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,277 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,437 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,479 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,933 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,749 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,985 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,459 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,217 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,846 |
