| Which City in Europe? | 0 | - | 4.83 | 107,601 |
| Which City in Canada? | 0 | - | 4.83 | 57,157 |
| World Capitals by a Single Clue #2 | 0 | - | 4.46 | 54,048 |
| World Capitals by a Single Clue #4 | 0 | - | 4.42 | 45,507 |
| World Capitals by a Single Clue #1 | 0 | - | 4.52 | 56,302 |
| European Cities by Clue | 0 | - | 4.70 | 89,101 |
| Random Capital to Country | 0 | - | 4.99 | 2,595,269 |
| Random Country to Capital | 0 | - | 4.98 | 923,226 |
| Which City in Africa? | 0 | - | 4.77 | 57,889 |
| Which City in Asia? | 0 | - | 4.52 | 51,456 |
| Which City in Latin America? | 0 | - | 4.63 | 47,075 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,136 |
| Capital Cities Chain | 0 | - | 4.84 | 82,990 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,147 |
| World Capitals by a Single Clue #3 | 0 | - | 4.35 | 46,275 |
| Asian Cities by Clue | 0 | - | 4.70 | 25,810 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 48,993 |
| World Capitals Quiz | 0 | - | 5.00 | 5,085,852 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,003 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,600 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,304 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,375 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,464 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,930 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,799 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,536 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,498 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,805 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,440 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,266 |
| Name a Valid African Country | 0 | - | 4.98 | 154,409 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,103 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,915 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,591,610 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,819 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,673 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,525 |
| Random European Capital to Country | 0 | - | 4.98 | 191,515 |
| Random European Country to Capital | 0 | - | 4.93 | 165,435 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,639 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,029 |
| Random African Capital to Country | 0 | - | 4.97 | 100,933 |
| Random African Country to Capital | 0 | - | 4.94 | 71,415 |
| Which City in the United States? | 0 | - | 4.21 | 57,069 |
| Which City in the Middle East? | 0 | - | 4.47 | 67,193 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,427 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,871 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,134 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,015 |
| Countries with Megacities | 0 | - | 4.99 | 264,854 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,848 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,532 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,107 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,611 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,631 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,594 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,587 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,722 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,549 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,405 |
| Countries by Capital City | 0 | - | 5.00 | 68,696 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,407 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,850 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,288 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,446 |
| Moved Capital Cities | 0 | - | 4.96 | 74,378 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,757 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,869 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,096 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,547 |
| Resort Towns by Country | 0 | - | 4.30 | 40,042 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,068 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,049 |
| Random European Flag to Country | 0 | - | 4.89 | 183,031 |
| Random African Flag to Country | 0 | - | 4.88 | 75,245 |
| Countries of Africa | 0 | - | 5.00 | 2,546,177 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,100 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,979 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,295 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,216 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,604 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,779 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,255 |
| North American Sports Cities | 0 | - | 4.83 | 172,691 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,417 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,606 |
| Name a City - European Countries | 0 | - | 4.90 | 65,663 |
| Cities by Former Name | 0 | - | 4.83 | 91,754 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,505 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,774 |
| Solve the Secret Capital City | 0 | - | 4.80 | 163,814 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,436 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,452 |
| World Capitals by Map | 0 | - | 5.00 | 287,602 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,502 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,964 |
| Capitals Starting With H | 0 | - | 4.91 | 92,756 |
| Capitals Starting With K | 0 | - | 4.88 | 83,809 |
| Capitals Starting With L | 0 | - | 4.81 | 88,278 |
| Capitals Starting With M | 0 | - | 4.93 | 108,117 |
| Capitals Starting With P | 0 | - | 4.88 | 78,382 |
| Capitals Starting With R | 0 | - | 4.87 | 82,004 |
| Capitals Starting With S | 0 | - | 4.90 | 85,988 |
| Capitals Starting With T | 0 | - | 4.84 | 76,340 |
| Capitals Starting With W | 0 | - | 4.87 | 91,416 |
| Capitals Starting With A | 0 | - | 4.97 | 128,334 |
| Capitals Starting With B | 0 | - | 4.89 | 118,755 |
| Capitals Starting With D | 0 | - | 4.93 | 96,660 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,659 |
| Olympic Host Countries | 0 | - | 4.98 | 201,173 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,147 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,761 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 311,024 |
| The Only European Country ... | 0 | - | 4.91 | 217,518 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,877 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,651 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,748 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,263 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,563 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,593 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,910 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,721 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,780 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,196 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,362 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,523 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,005 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,281 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,544 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,320 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,943 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,355 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,656 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,434 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,636 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,014 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,306 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,574 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,437 |
| Random European City to Country | 0 | - | 4.69 | 117,937 |
| Random Asian City to Country | 0 | - | 4.56 | 44,563 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,164 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,025 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,446 |
| Former Capitals | 0 | - | 4.88 | 71,534 |
| Europe Capital to Country | 0 | - | 4.99 | 250,978 |
| Asia Capital to Country | 0 | - | 4.96 | 126,898 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,260 |
| European Capitals by Map | 0 | - | 4.99 | 140,091 |
| African Capitals by Map | 0 | - | 4.99 | 134,222 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,799 |
| Coldest World Capitals | 0 | - | 4.95 | 133,673 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,699 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,329 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,673 |
| European Coastal Capitals | 0 | - | 4.95 | 90,859 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,690 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,951 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,665 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,939 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,790 |
| Word Scramble - National Capitals | 0 | - | 4.19 | 489,525 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,494 |
| Countries of the Middle East | 0 | - | 4.96 | 201,768 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,616 |
| Slavic Countries | 0 | - | 4.96 | 111,931 |
| Countries by Emojis | 0 | - | 4.99 | 240,540 |
| African Island Countries | 0 | - | 4.96 | 101,907 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,146 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,976 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,698 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.82 | 50,050 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 170,418 |
| Random African Countries on a Map | 0 | - | 4.99 | 296,910 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,800 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,354 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,235 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,400 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,284 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,835 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,905 |
| Countries that Start with A | 0 | - | 4.98 | 2,167,406 |
| Countries that Start with B | 0 | - | 4.95 | 2,298,731 |
| Countries that Start with C | 0 | - | 4.96 | 1,825,535 |
| Countries that Start with D | 0 | - | 4.96 | 712,134 |
| Countries that Start with E | 0 | - | 4.95 | 1,380,121 |
| Countries that Start with G | 0 | - | 4.97 | 1,506,350 |
| Countries that Start with H | 0 | - | 4.96 | 606,513 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,614 |
| Countries that Start with J | 0 | - | 4.98 | 604,102 |
| Countries that Start with K | 0 | - | 4.97 | 817,659 |
| Countries that Start with L | 0 | - | 4.98 | 1,092,952 |
| Countries that Start with N | 0 | - | 4.93 | 1,120,022 |
| Countries that Start with P | 0 | - | 4.94 | 1,218,380 |
| Countries that Start with S | 0 | - | 4.98 | 1,757,993 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,541 |
| Countries that Start with U | 0 | - | 4.97 | 905,851 |
| Countries that Start with V | 0 | - | 4.98 | 610,297 |
| Countries that Start with F | 0 | - | 4.83 | 618,952 |
| Countries that Start with M | 0 | - | 4.97 | 1,384,179 |
