| Which City in Europe? | 0 | - | 4.83 | 107,979 |
| Which City in Canada? | 0 | - | 4.83 | 57,398 |
| World Capitals by a Single Clue #2 | 0 | - | 4.46 | 54,139 |
| World Capitals by a Single Clue #4 | 0 | - | 4.42 | 45,660 |
| World Capitals by a Single Clue #1 | 0 | - | 4.52 | 56,397 |
| European Cities by Clue | 0 | - | 4.70 | 89,209 |
| Random Capital to Country | 0 | - | 4.99 | 2,603,662 |
| Random Country to Capital | 0 | - | 4.98 | 929,717 |
| Which City in Africa? | 0 | - | 4.77 | 58,031 |
| Which City in Asia? | 0 | - | 4.52 | 51,615 |
| Which City in Latin America? | 0 | - | 4.63 | 47,171 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,851 |
| Capital Cities Chain | 0 | - | 4.84 | 83,492 |
| Solve the Secret Capital City | 0 | - | 4.81 | 164,691 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,695 |
| World Capitals by a Single Clue #3 | 0 | - | 4.35 | 46,373 |
| Asian Cities by Clue | 0 | - | 4.70 | 25,854 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,456 |
| World Capitals Quiz | 0 | - | 5.00 | 5,112,338 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 228,080 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,237 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,752 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,764 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,440 |
| Random World Capitals on a Map | 0 | - | 4.93 | 135,987 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,501 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,983 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,628 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,905 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,218 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,916 |
| Name a Valid African Country | 0 | - | 4.98 | 155,208 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,068 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,397 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,758 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,156 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 76,156 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,231 |
| Random European Capital to Country | 0 | - | 4.98 | 192,314 |
| Random European Country to Capital | 0 | - | 4.93 | 166,036 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,077 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,539 |
| Random African Capital to Country | 0 | - | 4.97 | 101,445 |
| Random African Country to Capital | 0 | - | 4.94 | 71,855 |
| Which City in the United States? | 0 | - | 4.21 | 57,212 |
| Which City in the Middle East? | 0 | - | 4.47 | 67,336 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,224 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,714 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,883 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,441 |
| Countries with Megacities | 0 | - | 4.99 | 267,717 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,094 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,303 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,428 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,409 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,475 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,523 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,072 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,315 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,403 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,339 |
| Countries by Capital City | 0 | - | 5.00 | 69,576 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,106 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,332 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,309 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,931 |
| Moved Capital Cities | 0 | - | 4.96 | 74,717 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,725 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,840 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,717 |
| Resort Towns by Country | 0 | - | 4.30 | 40,097 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,873 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,751 |
| Countries of Africa | 0 | - | 5.00 | 2,563,598 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,551 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,440 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,482 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,792 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,980 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,341 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,704 |
| North American Sports Cities | 0 | - | 4.82 | 173,265 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,595 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,029 |
| Name a City - European Countries | 0 | - | 4.89 | 66,349 |
| Cities by Former Name | 0 | - | 4.83 | 92,166 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,972 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,031 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,947 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,500 |
| World Capitals by Map | 0 | - | 5.00 | 289,833 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,912 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,319 |
| Capitals Starting With H | 0 | - | 4.91 | 93,422 |
| Capitals Starting With K | 0 | - | 4.88 | 84,488 |
| Capitals Starting With L | 0 | - | 4.81 | 96,055 |
| Capitals Starting With M | 0 | - | 4.94 | 109,329 |
| Capitals Starting With P | 0 | - | 4.88 | 79,104 |
| Capitals Starting With R | 0 | - | 4.88 | 82,588 |
| Capitals Starting With S | 0 | - | 4.90 | 86,673 |
| Capitals Starting With T | 0 | - | 4.86 | 76,926 |
| Capitals Starting With W | 0 | - | 4.87 | 91,781 |
| Capitals Starting With A | 0 | - | 4.97 | 129,248 |
| Capitals Starting With B | 0 | - | 4.89 | 119,621 |
| Capitals Starting With D | 0 | - | 4.94 | 97,299 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,131 |
| Olympic Host Countries | 0 | - | 4.98 | 202,168 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,207 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,420 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,801 |
| The Only European Country ... | 0 | - | 4.91 | 219,461 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,245 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,773 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,971 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,909 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,759 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,534 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,576 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,959 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,527 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,817 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,864 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,017 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,982 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,991 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,599 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,270 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,565 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,915 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,850 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,820 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,648 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,039 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,726 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,292 |
| Random European City to Country | 0 | - | 4.69 | 118,528 |
| Random Asian City to Country | 0 | - | 4.56 | 44,632 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,784 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,677 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,955 |
| Former Capitals | 0 | - | 4.88 | 71,719 |
| Europe Capital to Country | 0 | - | 4.99 | 252,497 |
| Asia Capital to Country | 0 | - | 4.96 | 127,669 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,227 |
| European Capitals by Map | 0 | - | 4.99 | 142,443 |
| African Capitals by Map | 0 | - | 4.99 | 142,520 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,503 |
| Coldest World Capitals | 0 | - | 4.95 | 134,248 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,098 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,088 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,344 |
| European Coastal Capitals | 0 | - | 4.95 | 91,461 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,257 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,186 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,135 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,231 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,235 |
| Word Scramble - National Capitals | 0 | - | 4.19 | 492,283 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,163 |
| Countries of the Middle East | 0 | - | 4.96 | 203,195 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,332 |
| Slavic Countries | 0 | - | 4.96 | 112,479 |
| Countries by Emojis | 0 | - | 4.99 | 242,773 |
| African Island Countries | 0 | - | 4.96 | 102,700 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,691 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,231 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,685 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,500 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,784 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,090 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,973 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,446 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,902 |
| Countries that Start with A | 0 | - | 4.98 | 2,177,867 |
| Countries that Start with B | 0 | - | 4.95 | 2,308,490 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,046 |
| Countries that Start with D | 0 | - | 4.96 | 717,520 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,324 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,864 |
| Countries that Start with H | 0 | - | 4.96 | 610,332 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,548 |
| Countries that Start with J | 0 | - | 4.98 | 607,723 |
| Countries that Start with K | 0 | - | 4.97 | 821,550 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,828 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,885 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,052 |
| Countries that Start with S | 0 | - | 4.98 | 1,764,525 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,680 |
| Countries that Start with U | 0 | - | 4.97 | 909,065 |
| Countries that Start with V | 0 | - | 4.98 | 612,440 |
| Countries that Start with F | 0 | - | 4.83 | 621,868 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,346 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,328 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,088 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,734 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,688 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,063 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,957 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,493 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,028 |
