| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 228,167 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,803 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,871 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,162 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,042 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,586 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,170 |
| Random European Capital to Country | 0 | - | 4.98 | 192,367 |
| Random European Country to Capital | 0 | - | 4.93 | 166,091 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,094 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,598 |
| Random African Capital to Country | 0 | - | 4.97 | 101,497 |
| Random African Country to Capital | 0 | - | 4.94 | 71,899 |
| Every European Country Shape | 0 | - | 4.96 | 203,277 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,730 |
| Every African Country Shape | 0 | - | 4.90 | 88,633 |
| Europe Capital to Country | 0 | - | 4.99 | 252,615 |
| Asia Capital to Country | 0 | - | 4.96 | 127,702 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,310 |
| European Capitals by Map | 0 | - | 4.99 | 142,577 |
| African Capitals by Map | 0 | - | 4.99 | 142,621 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,127 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,143 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,406 |
| European Coastal Capitals | 0 | - | 4.95 | 91,508 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,273 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,355 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,611 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,258 |
| World Capitals Quiz | 0 | - | 5.00 | 5,114,640 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,671 |
| Random European Flag to Country | 0 | - | 4.90 | 184,483 |
| Random African Flag to Country | 0 | - | 4.87 | 75,743 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,678 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,377 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,730 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,346 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,502 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,673 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,072 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,827 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,726 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,530 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.89 | 99,832 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.86 | 114,763 |
| Countries that Start with A - Shape Quiz | 0 | - | 4.93 | 35,238 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.94 | 83,295 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,988 |
| Flags of Countries that Border China | 0 | - | 4.94 | 100,244 |
| Flags of Countries That Border France | 0 | - | 4.89 | 123,924 |
| U.S. State Flags | 0 | - | 4.89 | 173,491 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,804 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,993 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,700 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 171,201 |
| Random African Countries on a Map | 0 | - | 4.99 | 298,376 |
| Random American Countries on a Map | 0 | - | 4.96 | 100,529 |
| Random European Countries on a Map | 0 | - | 4.97 | 285,381 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,230 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,030 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,536 |
| Countries with Megacities | 0 | - | 4.99 | 267,937 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,188 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,352 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,511 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,459 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,926 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,534 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,575 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,089 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,360 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,458 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,407 |
| Countries by Capital City | 0 | - | 5.00 | 69,651 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,179 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,369 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,497 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,603 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,973 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,942 |
| Moved Capital Cities | 0 | - | 4.96 | 74,742 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,810 |
| Countries that Start with B - Shape Quiz | 0 | - | 4.89 | 27,893 |
| Country Flag-Shape Picture Quiz #1 | 0 | - | 4.94 | 95,544 |
| Country Flag-Shape Picture Quiz #2 | 0 | - | 4.90 | 73,372 |
| Country Flag-Shape Picture Quiz #4 | 0 | - | 4.96 | 72,226 |
| Country Flag-Shape Picture Quiz #6 | 0 | - | 4.98 | 70,243 |
| Country Flag-Shape Picture Quiz #5 | 0 | - | 4.97 | 62,238 |
| Country Flag-Shape Picture Quiz #7 | 0 | - | 4.96 | 59,343 |
| Europe Flags Map Quiz | 0 | - | 4.97 | 159,838 |
| Fill the World Map by Country Flags | 0 | - | 4.99 | 84,431 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,207 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,332 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,444 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,573 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,842 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,383 |
| Shapes of Mediterranean Sea Countries | 0 | - | 4.80 | 56,125 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 128,493 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,720 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 218,247 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,479 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,545 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,832 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,006 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,378 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,739 |
| North American Sports Cities | 0 | - | 4.82 | 173,310 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,606 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,068 |
| Cities by Former Name | 0 | - | 4.83 | 92,196 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,988 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,050 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,980 |
| World Capitals by Map | 0 | - | 5.00 | 290,008 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,941 |
| Random Capital to Country | 0 | - | 4.99 | 2,604,438 |
| Random Country to Capital | 0 | - | 4.98 | 930,242 |
| Capitals Starting With H | 0 | - | 4.91 | 93,459 |
| Capitals Starting With K | 0 | - | 4.89 | 84,521 |
| Capitals Starting With L | 0 | - | 4.81 | 96,103 |
| Capitals Starting With M | 0 | - | 4.94 | 109,391 |
| Capitals Starting With P | 0 | - | 4.88 | 79,128 |
| Capitals Starting With R | 0 | - | 4.89 | 82,614 |
| Capitals Starting With S | 0 | - | 4.90 | 86,703 |
| Capitals Starting With T | 0 | - | 4.86 | 76,951 |
| Capitals Starting With W | 0 | - | 4.87 | 91,800 |
| Capitals Starting With A | 0 | - | 4.97 | 129,291 |
| Capitals Starting With B | 0 | - | 4.89 | 119,661 |
| Capitals Starting With D | 0 | - | 4.94 | 97,324 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,382 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,256 |
| Olympic Host Countries | 0 | - | 4.98 | 202,242 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,260 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,502 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 315,166 |
| The Only European Country ... | 0 | - | 4.91 | 219,609 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,366 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,844 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,994 |
| Countries of Africa | 0 | - | 5.00 | 2,564,919 |
| Africa Flags Map Quiz | 0 | - | 4.94 | 36,934 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,768 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,672 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,634 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,978 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,590 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,874 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,906 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,063 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,887 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,044 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,026 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,621 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,285 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,577 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,932 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,877 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,835 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,692 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,079 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,826 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,369 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,834 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,704 |
| Former Capitals | 0 | - | 4.88 | 71,733 |
| Capital Cities Chain | 0 | - | 4.84 | 83,533 |
| Solve the Secret Capital City | 0 | - | 4.80 | 164,745 |
| Coldest World Capitals | 0 | - | 4.95 | 134,297 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,262 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,352 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,738 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,996 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,281 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,294 |
| Countries of the Middle East | 0 | - | 4.96 | 203,284 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,377 |
| Slavic Countries | 0 | - | 4.96 | 112,517 |
| African Island Countries | 0 | - | 4.96 | 102,747 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,248 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,757 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,673 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,831 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,327 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,402 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 128,033 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,493 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,978 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,387 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,179 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,789 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,732 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,084 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,981 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,541 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,070 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,710 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,083 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,329 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 47,604 |
