| Which City in Europe? | 0 | - | 4.83 | 106,956 |
| Which City in Canada? | 0 | - | 4.82 | 56,827 |
| World Capitals by a Single Clue #2 | 0 | - | 4.46 | 53,376 |
| World Capitals by a Single Clue #4 | 0 | - | 4.41 | 38,253 |
| World Capitals by a Single Clue #1 | 0 | - | 4.51 | 55,489 |
| European Cities by Clue | 0 | - | 4.70 | 88,899 |
| Random Capital to Country | 0 | - | 4.99 | 2,582,886 |
| Random Country to Capital | 0 | - | 4.98 | 914,257 |
| Which City in Africa? | 0 | - | 4.77 | 57,678 |
| Which City in Asia? | 0 | - | 4.52 | 51,240 |
| Which City in Latin America? | 0 | - | 4.63 | 46,915 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,657 |
| Capital Cities Chain | 0 | - | 4.84 | 82,166 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,276 |
| World Capitals by a Single Clue #3 | 0 | - | 4.35 | 45,802 |
| Asian Cities by Clue | 0 | - | 4.70 | 25,738 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,280 |
| World Capitals Quiz | 0 | - | 5.00 | 5,046,190 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,689 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,701 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,661 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,976 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,667 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,856 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,880 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,300 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,647 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,254 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,380 |
| Name a Valid African Country | 0 | - | 4.98 | 153,316 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,752 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,313 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,576,176 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,251 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,076 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,366 |
| Random European Capital to Country | 0 | - | 4.98 | 189,666 |
| Random European Country to Capital | 0 | - | 4.92 | 147,771 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,603 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,709 |
| Random African Capital to Country | 0 | - | 4.97 | 99,949 |
| Random African Country to Capital | 0 | - | 4.94 | 70,435 |
| Which City in the United States? | 0 | - | 4.21 | 56,829 |
| Which City in the Middle East? | 0 | - | 4.47 | 66,963 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,376 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,905 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,590 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,084 |
| Countries with Megacities | 0 | - | 4.99 | 248,574 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,964 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,449 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,340 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,395 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,333 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,452 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,975 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,946 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,155 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,012 |
| Countries by Capital City | 0 | - | 5.00 | 67,284 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,633 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,171 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,441 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,620 |
| Moved Capital Cities | 0 | - | 4.96 | 73,818 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,059 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,038 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,187 |
| Resort Towns by Country | 0 | - | 4.30 | 39,955 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,828 |
| Asia Capitals Quiz | 0 | - | 4.98 | 688,422 |
| Random European Flag to Country | 0 | - | 4.89 | 181,413 |
| Random African Flag to Country | 0 | - | 4.88 | 74,441 |
| Countries of Africa | 0 | - | 5.00 | 2,517,998 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,361 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,220 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,742 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,238 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,029 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,027 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,576 |
| North American Sports Cities | 0 | - | 4.83 | 171,289 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,013 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,981 |
| Name a City - European Countries | 0 | - | 4.91 | 64,752 |
| Cities by Former Name | 0 | - | 4.84 | 91,199 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,178 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,397 |
| Solve the Secret Capital City | 0 | - | 4.80 | 163,080 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,379 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,359 |
| World Capitals by Map | 0 | - | 5.00 | 284,515 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,909 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,243 |
| Capitals Starting With H | 0 | - | 4.90 | 91,650 |
| Capitals Starting With K | 0 | - | 4.85 | 75,891 |
| Capitals Starting With L | 0 | - | 4.81 | 87,074 |
| Capitals Starting With M | 0 | - | 4.93 | 106,477 |
| Capitals Starting With P | 0 | - | 4.88 | 77,393 |
| Capitals Starting With R | 0 | - | 4.87 | 81,159 |
| Capitals Starting With S | 0 | - | 4.89 | 85,020 |
| Capitals Starting With T | 0 | - | 4.84 | 75,485 |
| Capitals Starting With W | 0 | - | 4.89 | 90,798 |
| Capitals Starting With A | 0 | - | 4.97 | 126,834 |
| Capitals Starting With B | 0 | - | 4.89 | 117,543 |
| Capitals Starting With D | 0 | - | 4.93 | 95,626 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,726 |
| Olympic Host Countries | 0 | - | 4.98 | 199,379 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,168 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,161 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 305,448 |
| The Only European Country ... | 0 | - | 4.91 | 214,866 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,878 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,149 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,420 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,016,101 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,012 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,689 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,297 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,755 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,280 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,674 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,849 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,563 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,877 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,606 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,484 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,849 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,731 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,977 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,472 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,412 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,968 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,470 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,748 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,322 |
| Random European City to Country | 0 | - | 4.69 | 116,882 |
| Random Asian City to Country | 0 | - | 4.56 | 44,428 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,008 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,502 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,594 |
| Former Capitals | 0 | - | 4.88 | 71,246 |
| Europe Capital to Country | 0 | - | 4.99 | 248,661 |
| Asia Capital to Country | 0 | - | 4.96 | 126,077 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,970 |
| European Capitals by Map | 0 | - | 4.99 | 137,431 |
| African Capitals by Map | 0 | - | 4.99 | 132,707 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,760 |
| Coldest World Capitals | 0 | - | 4.95 | 133,183 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,643 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,528 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,900 |
| European Coastal Capitals | 0 | - | 4.95 | 90,036 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,311 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,929 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,581 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,541 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,062 |
| Word Scramble - National Capitals | 0 | - | 4.19 | 485,640 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,158 |
| Countries of the Middle East | 0 | - | 4.96 | 199,673 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,629 |
| Slavic Countries | 0 | - | 4.96 | 111,156 |
| Countries by Emojis | 0 | - | 4.99 | 237,569 |
| African Island Countries | 0 | - | 4.96 | 101,075 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,367 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,636 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,157 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 45,518 |
| Random Asian Countries on a Map | 0 | - | 4.90 | 169,201 |
| Random African Countries on a Map | 0 | - | 4.99 | 294,487 |
| Random American Countries on a Map | 0 | - | 4.96 | 98,945 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,517 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,440 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,485 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,176 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,883 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,610 |
| Countries that Start with A | 0 | - | 4.98 | 2,152,290 |
| Countries that Start with B | 0 | - | 4.95 | 2,284,692 |
| Countries that Start with C | 0 | - | 4.96 | 1,814,185 |
| Countries that Start with D | 0 | - | 4.96 | 704,208 |
| Countries that Start with E | 0 | - | 4.95 | 1,370,682 |
| Countries that Start with G | 0 | - | 4.97 | 1,496,207 |
| Countries that Start with H | 0 | - | 4.96 | 600,164 |
| Countries that Start with I | 0 | - | 4.92 | 1,282,890 |
| Countries that Start with J | 0 | - | 4.98 | 598,187 |
| Countries that Start with K | 0 | - | 4.97 | 811,425 |
| Countries that Start with L | 0 | - | 4.98 | 1,085,401 |
| Countries that Start with N | 0 | - | 4.93 | 1,112,329 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,962 |
| Countries that Start with S | 0 | - | 4.98 | 1,747,954 |
| Countries that Start with T | 0 | - | 4.90 | 1,006,071 |
| Countries that Start with U | 0 | - | 4.97 | 901,448 |
| Countries that Start with V | 0 | - | 4.98 | 606,431 |
| Countries that Start with F | 0 | - | 4.83 | 613,994 |
| Countries that Start with M | 0 | - | 4.97 | 1,376,077 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,113 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,087 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,045 |
