| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 226,877 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,318 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,563 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,483 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,440 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,038 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,767 |
| Random European Capital to Country | 0 | - | 4.98 | 191,175 |
| Random European Country to Capital | 0 | - | 4.93 | 165,352 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,574 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,922 |
| Random African Capital to Country | 0 | - | 4.97 | 100,854 |
| Random African Country to Capital | 0 | - | 4.94 | 71,353 |
| Every European Country Shape | 0 | - | 4.96 | 202,138 |
| Every Asian Country Shape | 0 | - | 4.95 | 87,955 |
| Every African Country Shape | 0 | - | 4.90 | 87,606 |
| Europe Capital to Country | 0 | - | 4.99 | 250,793 |
| Asia Capital to Country | 0 | - | 4.96 | 126,838 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,158 |
| European Capitals by Map | 0 | - | 4.99 | 139,865 |
| African Capitals by Map | 0 | - | 4.99 | 134,112 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,604 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,267 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,596 |
| European Coastal Capitals | 0 | - | 4.95 | 90,777 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,657 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,723 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,454 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,904 |
| World Capitals Quiz | 0 | - | 5.00 | 5,082,445 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,350 |
| Random European Flag to Country | 0 | - | 4.89 | 182,899 |
| Random African Flag to Country | 0 | - | 4.88 | 75,174 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,490 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,677 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,188 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,492 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,000 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,272 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,535 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,386 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,472 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,590,181 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.89 | 99,451 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.86 | 114,248 |
| Countries that Start with A - Shape Quiz | 0 | - | 4.93 | 34,682 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.94 | 82,927 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,458 |
| Flags of Countries that Border China | 0 | - | 4.94 | 99,706 |
| Flags of Countries That Border France | 0 | - | 4.88 | 123,352 |
| U.S. State Flags | 0 | - | 4.88 | 171,208 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,223 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,658 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,279 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 170,304 |
| Random African Countries on a Map | 0 | - | 4.99 | 296,772 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,734 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,202 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,967 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,910 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,845 |
| Countries with Megacities | 0 | - | 4.99 | 264,465 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,708 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,454 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,969 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,518 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,501 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,416 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,499 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,528 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,649 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,459 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,266 |
| Countries by Capital City | 0 | - | 5.00 | 68,595 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,349 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,790 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,026 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,725 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,374 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,583 |
| Moved Capital Cities | 0 | - | 4.96 | 74,325 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,653 |
| Countries that Start with B - Shape Quiz | 0 | - | 4.88 | 27,393 |
| Country Flag-Shape Picture Quiz #1 | 0 | - | 4.94 | 95,019 |
| Country Flag-Shape Picture Quiz #2 | 0 | - | 4.89 | 72,986 |
| Country Flag-Shape Picture Quiz #4 | 0 | - | 4.96 | 71,866 |
| Country Flag-Shape Picture Quiz #6 | 0 | - | 4.98 | 69,869 |
| Country Flag-Shape Picture Quiz #5 | 0 | - | 4.97 | 61,948 |
| Country Flag-Shape Picture Quiz #7 | 0 | - | 4.96 | 59,019 |
| Europe Flags Map Quiz | 0 | - | 4.97 | 158,714 |
| Fill the World Map by Country Flags | 0 | - | 4.99 | 83,861 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,039 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,917 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,067 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,898 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,285 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,179 |
| Shapes of Mediterranean Sea Countries | 0 | - | 4.80 | 55,932 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,924 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,207 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,457 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,902 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,153 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,123 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,543 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,720 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,206 |
| North American Sports Cities | 0 | - | 4.83 | 172,612 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,380 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,525 |
| Cities by Former Name | 0 | - | 4.83 | 91,698 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,468 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,740 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,369 |
| World Capitals by Map | 0 | - | 5.00 | 287,316 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,442 |
| Random Capital to Country | 0 | - | 4.99 | 2,594,156 |
| Random Country to Capital | 0 | - | 4.98 | 922,468 |
| Capitals Starting With H | 0 | - | 4.91 | 92,701 |
| Capitals Starting With K | 0 | - | 4.88 | 83,745 |
| Capitals Starting With L | 0 | - | 4.81 | 88,230 |
| Capitals Starting With M | 0 | - | 4.93 | 108,028 |
| Capitals Starting With P | 0 | - | 4.88 | 78,329 |
| Capitals Starting With R | 0 | - | 4.87 | 81,965 |
| Capitals Starting With S | 0 | - | 4.90 | 85,935 |
| Capitals Starting With T | 0 | - | 4.84 | 76,290 |
| Capitals Starting With W | 0 | - | 4.87 | 91,385 |
| Capitals Starting With A | 0 | - | 4.97 | 128,259 |
| Capitals Starting With B | 0 | - | 4.89 | 118,680 |
| Capitals Starting With D | 0 | - | 4.93 | 96,607 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,848 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,483 |
| Olympic Host Countries | 0 | - | 4.98 | 201,071 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,063 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,620 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 310,570 |
| The Only European Country ... | 0 | - | 4.91 | 217,289 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,721 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,511 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,728 |
| Eastern Africa Map Quiz | 0 | - | 4.98 | 79,137 |
| Countries of Africa | 0 | - | 5.00 | 2,543,581 |
| Africa Flags Map Quiz | 0 | - | 4.95 | 36,546 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,526 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,371 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,847 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,693 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,696 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,121 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,313 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,470 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,168 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,201 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,483 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,293 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,897 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,329 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,634 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,397 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,612 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 110,916 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,152 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,451 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,348 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 131,060 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,920 |
| Former Capitals | 0 | - | 4.88 | 71,511 |
| Capital Cities Chain | 0 | - | 4.83 | 82,914 |
| Coldest World Capitals | 0 | - | 4.95 | 133,643 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,738 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,909 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,084 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,199 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,440 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,276 |
| Countries of the Middle East | 0 | - | 4.96 | 201,594 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,521 |
| Slavic Countries | 0 | - | 4.96 | 111,851 |
| African Island Countries | 0 | - | 4.96 | 101,831 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,949 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,575 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 47,376 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,162 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,327 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,406 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,183 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,741 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,781 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,586 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,275 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,881 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,974 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,698 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,369 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,395 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,763 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,440 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,340 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,197 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,408 |
