| Which City in Europe? | 0 | - | 4.83 | 106,539 |
| Which City in Canada? | 0 | - | 4.82 | 56,604 |
| World Capitals by a Single Clue #2 | 0 | - | 4.46 | 53,291 |
| World Capitals by a Single Clue #4 | 0 | - | 4.41 | 38,189 |
| World Capitals by a Single Clue #1 | 0 | - | 4.51 | 55,396 |
| European Cities by Clue | 0 | - | 4.70 | 88,762 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,048 |
| Random Country to Capital | 0 | - | 4.98 | 910,402 |
| Which City in Africa? | 0 | - | 4.78 | 57,542 |
| Which City in Asia? | 0 | - | 4.51 | 51,079 |
| Which City in Latin America? | 0 | - | 4.63 | 46,817 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,490 |
| Capital Cities Chain | 0 | - | 4.84 | 81,795 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,854 |
| World Capitals by a Single Clue #3 | 0 | - | 4.35 | 45,739 |
| Asian Cities by Clue | 0 | - | 4.70 | 25,703 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,032 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,170 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,138 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,235 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,246 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,345 |
| Random World Capitals on a Map | 0 | - | 4.93 | 132,958 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,380 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,558 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,194 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,570 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,218 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,924 |
| Name a Valid African Country | 0 | - | 4.98 | 152,796 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,969 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,568,768 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,945 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 74,823 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,784 |
| Random European Capital to Country | 0 | - | 4.98 | 189,042 |
| Random European Country to Capital | 0 | - | 4.92 | 147,327 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,262 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,324 |
| Random African Capital to Country | 0 | - | 4.97 | 99,667 |
| Random African Country to Capital | 0 | - | 4.94 | 70,148 |
| Which City in the United States? | 0 | - | 4.21 | 56,627 |
| Which City in the Middle East? | 0 | - | 4.47 | 66,755 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,835 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,397 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 376,988 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,850 |
| Countries with Megacities | 0 | - | 4.99 | 246,142 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,767 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,726 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,231 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,661 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,563 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,804 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,558 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,506 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,473 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,202 |
| Countries by Capital City | 0 | - | 5.00 | 66,443 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,218 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,802 |
| World Capitals by Proximity | 0 | - | 4.91 | 327,918 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,329 |
| Moved Capital Cities | 0 | - | 4.96 | 73,504 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,364 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,369 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,754 |
| Resort Towns by Country | 0 | - | 4.30 | 39,909 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,304 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,745 |
| Countries of Africa | 0 | - | 5.00 | 2,504,025 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,025 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,714 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,661 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,741 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,390 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,477 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,142 |
| North American Sports Cities | 0 | - | 4.83 | 170,741 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,877 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,631 |
| Name a City - European Countries | 0 | - | 4.92 | 64,258 |
| Cities by Former Name | 0 | - | 4.84 | 90,859 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,631 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,183 |
| Solve the Secret Capital City | 0 | - | 4.80 | 162,261 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,760 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,321 |
| World Capitals by Map | 0 | - | 5.00 | 282,781 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,595 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,654 |
| Capitals Starting With H | 0 | - | 4.90 | 88,135 |
| Capitals Starting With K | 0 | - | 4.85 | 75,445 |
| Capitals Starting With M | 0 | - | 4.93 | 105,727 |
| Capitals Starting With P | 0 | - | 4.88 | 76,969 |
| Capitals Starting With R | 0 | - | 4.87 | 80,773 |
| Capitals Starting With S | 0 | - | 4.89 | 84,572 |
| Capitals Starting With T | 0 | - | 4.84 | 75,111 |
| Capitals Starting With W | 0 | - | 4.89 | 90,434 |
| Capitals Starting With A | 0 | - | 4.97 | 126,235 |
| Capitals Starting With B | 0 | - | 4.89 | 117,002 |
| Capitals Starting With D | 0 | - | 4.93 | 95,095 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,703 |
| Olympic Host Countries | 0 | - | 4.98 | 198,738 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,698 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,322 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 302,662 |
| The Only European Country ... | 0 | - | 4.91 | 213,455 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,811 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,302 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,150 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,286 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,664 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,027 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,081 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,147 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,742 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,275 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,459 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,286 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,135 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,174 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,497 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,476 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,709 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,086 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,256 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,235 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,078 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,843 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,636 |
| Random European City to Country | 0 | - | 4.69 | 116,213 |
| Random Asian City to Country | 0 | - | 4.56 | 44,376 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,481 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,262 |
| U.S. Cities With Spanish Names | 0 | - | 4.93 | 21,930 |
| Former Capitals | 0 | - | 4.88 | 71,074 |
| Europe Capital to Country | 0 | - | 4.99 | 247,263 |
| Asia Capital to Country | 0 | - | 4.96 | 125,604 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,270 |
| European Capitals by Map | 0 | - | 4.99 | 135,900 |
| African Capitals by Map | 0 | - | 4.99 | 132,037 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,742 |
| Coldest World Capitals | 0 | - | 4.95 | 132,979 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,950 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,062 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,519 |
| European Coastal Capitals | 0 | - | 4.95 | 89,628 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,141 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,333 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,511 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,368 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,680 |
| Word Scramble - National Capitals | 0 | - | 4.20 | 483,854 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,014 |
| Countries of the Middle East | 0 | - | 4.96 | 198,682 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,128 |
| Slavic Countries | 0 | - | 4.96 | 110,765 |
| Countries by Emojis | 0 | - | 4.99 | 235,773 |
| African Island Countries | 0 | - | 4.96 | 100,641 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,014 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,452 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,154 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,787 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 163,984 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,950 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,574 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,348 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,895 |
| Countries that Start with A | 0 | - | 4.98 | 2,144,468 |
| Countries that Start with B | 0 | - | 4.95 | 2,277,861 |
| Countries that Start with C | 0 | - | 4.96 | 1,808,638 |
| Countries that Start with D | 0 | - | 4.96 | 700,428 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,184 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,361 |
| Countries that Start with H | 0 | - | 4.96 | 596,997 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,114 |
| Countries that Start with J | 0 | - | 4.98 | 595,061 |
| Countries that Start with K | 0 | - | 4.96 | 808,557 |
| Countries that Start with L | 0 | - | 4.98 | 1,081,851 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,700 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,544 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,094 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,375 |
| Countries that Start with U | 0 | - | 4.97 | 898,987 |
| Countries that Start with V | 0 | - | 4.98 | 604,482 |
| Countries that Start with F | 0 | - | 4.83 | 611,413 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,157 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,638 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,458 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,571 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,665 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,102 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,064 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,181 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,452 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,141 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,313 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,125 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,413 |
