| Which City in Europe? | 0 | - | 4.83 | 106,595 |
| Which City in Canada? | 0 | - | 4.83 | 56,644 |
| World Capitals by a Single Clue #2 | 0 | - | 4.46 | 53,308 |
| World Capitals by a Single Clue #4 | 0 | - | 4.41 | 38,203 |
| World Capitals by a Single Clue #1 | 0 | - | 4.51 | 55,410 |
| European Cities by Clue | 0 | - | 4.70 | 88,793 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,463 |
| Random Country to Capital | 0 | - | 4.98 | 911,283 |
| Which City in Africa? | 0 | - | 4.78 | 57,560 |
| Which City in Asia? | 0 | - | 4.51 | 51,096 |
| Which City in Latin America? | 0 | - | 4.63 | 46,835 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,420 |
| Capital Cities Chain | 0 | - | 4.84 | 81,887 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,956 |
| World Capitals by a Single Clue #3 | 0 | - | 4.35 | 45,748 |
| Asian Cities by Clue | 0 | - | 4.70 | 25,711 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,080 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,490 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,241 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,316 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,308 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,469 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,128 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,492 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,626 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,210 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,582 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,604 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,016 |
| Name a Valid African Country | 0 | - | 4.98 | 152,899 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,488 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,344 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,992 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 74,887 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,914 |
| Random European Capital to Country | 0 | - | 4.98 | 189,146 |
| Random European Country to Capital | 0 | - | 4.92 | 147,396 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,340 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,371 |
| Random African Capital to Country | 0 | - | 4.97 | 99,711 |
| Random African Country to Capital | 0 | - | 4.94 | 70,197 |
| Which City in the United States? | 0 | - | 4.21 | 56,650 |
| Which City in the Middle East? | 0 | - | 4.47 | 66,785 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,506 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,481 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,000 |
| Countries with Megacities | 0 | - | 4.99 | 246,536 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,920 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,800 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,373 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,760 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,697 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,888 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,617 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,572 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,558 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,351 |
| Countries by Capital City | 0 | - | 5.00 | 66,571 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,291 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,872 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,249 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,392 |
| Moved Capital Cities | 0 | - | 4.96 | 73,559 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,508 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,509 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,859 |
| Resort Towns by Country | 0 | - | 4.30 | 39,917 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,933 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,552 |
| Countries of Africa | 0 | - | 5.00 | 2,506,583 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,079 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,779 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,829 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,827 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,444 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,543 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,208 |
| North American Sports Cities | 0 | - | 4.83 | 170,852 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,905 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,696 |
| Name a City - European Countries | 0 | - | 4.92 | 64,342 |
| Cities by Former Name | 0 | - | 4.84 | 90,937 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,673 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,223 |
| Solve the Secret Capital City | 0 | - | 4.80 | 162,582 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,880 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,333 |
| World Capitals by Map | 0 | - | 5.00 | 283,086 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,636 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,797 |
| Capitals Starting With H | 0 | - | 4.90 | 90,656 |
| Capitals Starting With K | 0 | - | 4.85 | 75,652 |
| Capitals Starting With L | 0 | - | 4.81 | 86,795 |
| Capitals Starting With M | 0 | - | 4.93 | 106,001 |
| Capitals Starting With P | 0 | - | 4.88 | 77,154 |
| Capitals Starting With R | 0 | - | 4.87 | 80,942 |
| Capitals Starting With S | 0 | - | 4.89 | 84,775 |
| Capitals Starting With T | 0 | - | 4.84 | 75,264 |
| Capitals Starting With W | 0 | - | 4.89 | 90,583 |
| Capitals Starting With A | 0 | - | 4.97 | 126,498 |
| Capitals Starting With B | 0 | - | 4.89 | 117,243 |
| Capitals Starting With D | 0 | - | 4.93 | 95,343 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,894 |
| Olympic Host Countries | 0 | - | 4.98 | 198,837 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,778 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,469 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,244 |
| The Only European Country ... | 0 | - | 4.91 | 213,711 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,039 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,457 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,180 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,249 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,937 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,153 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,114 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,264 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,861 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,359 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,541 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,405 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,241 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,221 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,569 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,530 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,769 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,166 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,298 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,315 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,156 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,045 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,753 |
| Random European City to Country | 0 | - | 4.69 | 116,285 |
| Random Asian City to Country | 0 | - | 4.56 | 44,386 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,636 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,308 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,109 |
| Former Capitals | 0 | - | 4.88 | 71,128 |
| Europe Capital to Country | 0 | - | 4.99 | 247,450 |
| Asia Capital to Country | 0 | - | 4.96 | 125,706 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,398 |
| European Capitals by Map | 0 | - | 4.99 | 136,149 |
| African Capitals by Map | 0 | - | 4.99 | 132,113 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,078 |
| Coldest World Capitals | 0 | - | 4.95 | 133,027 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,066 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,144 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,575 |
| European Coastal Capitals | 0 | - | 4.95 | 89,711 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,169 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,635 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,685 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,407 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,763 |
| Word Scramble - National Capitals | 0 | - | 4.20 | 484,238 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,229 |
| Countries of the Middle East | 0 | - | 4.96 | 198,836 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,215 |
| Slavic Countries | 0 | - | 4.96 | 110,819 |
| Countries by Emojis | 0 | - | 4.99 | 236,050 |
| African Island Countries | 0 | - | 4.96 | 100,743 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,080 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,482 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,284 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,950 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,073 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,040 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,667 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,447 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,036 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,055 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,210 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,785 |
| Countries that Start with D | 0 | - | 4.96 | 701,167 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,081 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,310 |
| Countries that Start with H | 0 | - | 4.96 | 597,632 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,926 |
| Countries that Start with J | 0 | - | 4.98 | 595,697 |
| Countries that Start with K | 0 | - | 4.97 | 809,126 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,548 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,411 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,247 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,077 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,968 |
| Countries that Start with U | 0 | - | 4.97 | 899,735 |
| Countries that Start with V | 0 | - | 4.98 | 604,905 |
| Countries that Start with F | 0 | - | 4.83 | 611,938 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,961 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,742 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,572 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,671 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,730 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,133 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,138 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,256 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,539 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,218 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,375 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,201 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,478 |
