| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,678 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 227,899 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,557 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,433 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,745 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,800 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,818 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,061 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,040 |
| Random European Capital to Country | 0 | - | 4.98 | 192,128 |
| Random European Country to Capital | 0 | - | 4.93 | 165,891 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,984 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,414 |
| Random African Capital to Country | 0 | - | 4.97 | 101,343 |
| Random African Country to Capital | 0 | - | 4.95 | 71,753 |
| World Capitals Quiz | 0 | - | 5.00 | 5,105,737 |
| Europe Capital to Country | 0 | - | 4.99 | 252,063 |
| Asia Capital to Country | 0 | - | 4.96 | 127,386 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,969 |
| European Capitals by Map | 0 | - | 4.99 | 142,081 |
| African Capitals by Map | 0 | - | 4.99 | 142,165 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,905 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,869 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,181 |
| European Coastal Capitals | 0 | - | 4.95 | 91,304 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,190 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,703 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,767 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,164 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,331 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,957 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,186 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,234 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,579 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,109 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,391 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,584 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,462 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,950 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,706 |
| Monarchies of Europe | 0 | - | 4.90 | 98,868 |
| Monarchies of Asia | 0 | - | 4.97 | 71,502 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,284 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,368 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,406 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,705 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,810 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,994 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,664 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,224 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,610 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,689 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,328 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,267 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,827 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,870 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,786 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,736 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,051 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,474 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,137 |
| Countries with Megacities | 0 | - | 4.99 | 267,083 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,829 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,126 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,147 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,232 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,295 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,344 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,969 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,196 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,213 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,133 |
| Countries by Capital City | 0 | - | 5.00 | 69,378 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,845 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,222 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,833 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,806 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,485 |
| Moved Capital Cities | 0 | - | 4.96 | 74,646 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,521 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,421 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,108 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,997 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,193 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,614 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,303 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,323 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,020 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,646 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,897 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,213 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,608 |
| North American Sports Cities | 0 | - | 4.82 | 173,144 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,556 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,991 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,422 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,945 |
| Cities by Former Name | 0 | - | 4.83 | 92,046 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,680 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,981 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,155 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,032 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,823 |
| World Capitals by Map | 0 | - | 5.00 | 289,326 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,822 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,440 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,259 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,367 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,397 |
| Random Country to Capital | 0 | - | 4.98 | 928,022 |
| Capitals Starting With H | 0 | - | 4.91 | 93,333 |
| Capitals Starting With K | 0 | - | 4.89 | 84,399 |
| Capitals Starting With M | 0 | - | 4.94 | 109,182 |
| Capitals Starting With P | 0 | - | 4.88 | 79,010 |
| Capitals Starting With R | 0 | - | 4.88 | 82,509 |
| Capitals Starting With S | 0 | - | 4.90 | 86,574 |
| Capitals Starting With T | 0 | - | 4.86 | 76,841 |
| Capitals Starting With W | 0 | - | 4.87 | 91,735 |
| Capitals Starting With A | 0 | - | 4.97 | 129,105 |
| Capitals Starting With B | 0 | - | 4.89 | 119,500 |
| Capitals Starting With D | 0 | - | 4.94 | 97,203 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,652 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,316 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,775 |
| Olympic Host Countries | 0 | - | 4.98 | 201,957 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,852 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,091 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 313,904 |
| The Only European Country ... | 0 | - | 4.91 | 218,982 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,923 |
| Hindu Countries | 0 | - | 4.87 | 50,574 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,494 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,916 |
| Countries of Africa | 0 | - | 5.00 | 2,559,530 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,733 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,987 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,569 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,196 |
| Australia A-Z | 0 | - | 4.54 | 50,139 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,010 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,395 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,905 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,349 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,668 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,750 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,890 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,685 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,805 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,885 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,520 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,194 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,512 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,856 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,762 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,319 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,725 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,110 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,228 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,776 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,457 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,914 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,470 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,055 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,677 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,575 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,837 |
| Former Capitals | 0 | - | 4.88 | 71,676 |
| Capital Cities Chain | 0 | - | 4.84 | 83,361 |
| Coldest World Capitals | 0 | - | 4.95 | 134,156 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,126 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,214 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,562 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,843 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,598 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,666 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,761 |
| Countries of the Middle East | 0 | - | 4.96 | 202,935 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,170 |
| Slavic Countries | 0 | - | 4.96 | 112,363 |
| African Island Countries | 0 | - | 4.96 | 102,438 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,171 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,118 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,399 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 53,126 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,655 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,922 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,403 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,811 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,313 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,598 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,163 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,351 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,500 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,512 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,952 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,785 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,047 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,712 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,259 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,911 |
