| Which City in Europe? | 0 | - | 4.84 | 97,494 |
| Which City in Canada? | 0 | - | 4.89 | 45,267 |
| World Capitals by a Single Clue #2 | 0 | - | 4.43 | 40,729 |
| World Capitals by a Single Clue #1 | 0 | - | 4.46 | 44,469 |
| European Cities by Clue | 0 | - | 4.72 | 85,038 |
| Random Capital to Country | 0 | - | 4.99 | 2,364,354 |
| Random Country to Capital | 0 | - | 4.98 | 803,860 |
| Which City in Africa? | 0 | - | 4.77 | 54,222 |
| Which City in Asia? | 0 | - | 4.45 | 39,971 |
| Which City in Latin America? | 0 | - | 4.57 | 38,472 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,187,787 |
| Capital Cities Chain | 0 | - | 4.86 | 71,511 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 78,841 |
| World Capitals by a Single Clue #3 | 0 | - | 4.30 | 33,969 |
| World Capitals by a Single Clue #4 | 0 | - | 4.38 | 35,322 |
| Asian Cities by Clue | 0 | - | 4.75 | 24,829 |
| Divided World City Name Puzzle #1 | 0 | - | 4.91 | 39,962 |
| World Capitals Quiz | 0 | - | 5.00 | 4,505,054 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.90 | 207,296 |
| Asian Countries with the Shortest Names | 0 | - | 4.98 | 121,778 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 100,989 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.89 | 114,951 |
| Random World Capitals on a Map | 0 | - | 4.92 | 114,221 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.87 | 68,123 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 80,008 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.48 | 43,747 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.53 | 37,602 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 189,474 |
| Name a Valid Asian Country | 0 | - | 4.98 | 92,547 |
| Name a Valid African Country | 0 | - | 4.98 | 124,451 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,385,479 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 76,768 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 66,528 |
| Name a World Capital A-Z | 0 | - | 4.99 | 141,238 |
| Random European Capital to Country | 0 | - | 4.97 | 152,996 |
| Random European Country to Capital | 0 | - | 4.92 | 135,163 |
| Random Asian Country to Capital | 0 | - | 4.94 | 85,752 |
| Random Asian Capital to Country | 0 | - | 4.97 | 89,324 |
| Random African Capital to Country | 0 | - | 4.97 | 79,721 |
| Random African Country to Capital | 0 | - | 4.94 | 61,946 |
| Which City in the United States? | 0 | - | 4.19 | 52,753 |
| Which City in the Middle East? | 0 | - | 4.48 | 50,961 |
| Category Elimination - European Countries #1 | 0 | - | 4.87 | 76,842 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,313,180 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,971 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,515 |
| Countries with Megacities | 0 | - | 4.99 | 197,809 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 172,030 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,240 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 95,869 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,213 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,551 |
| Global Cities on a World Map | 0 | - | 4.92 | 91,552 |
| Northernmost Capital Cities | 0 | - | 4.98 | 94,152 |
| Most Remote Capital Cities | 0 | - | 4.90 | 43,808 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 34,467 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 90,975 |
| Same Letter Country and Capital | 0 | - | 4.99 | 127,729 |
| Countries by Capital City | 0 | - | 4.99 | 49,578 |
| Capital Cities Based on First Two Letters | 0 | - | 4.84 | 66,017 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 105,173 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 73,083 |
| Moved Capital Cities | 0 | - | 4.94 | 52,341 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,938 |
| Countries that Beat the United States | 0 | - | 4.92 | 145,897 |
| Resort Towns by Country Quiz | 0 | - | 4.27 | 38,858 |
| Africa Capitals Quiz | 0 | - | 4.99 | 635,789 |
| Asia Capitals Quiz | 0 | - | 4.98 | 595,236 |
| Random European Flag to Country | 0 | - | 4.89 | 161,956 |
| Random African Flag to Country | 0 | - | 4.89 | 64,715 |
| Countries of Africa | 0 | - | 5.00 | 2,173,333 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 117,098 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,253 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,325 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,210 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 100,802 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 70,168 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,618 |
| Summer Olympic City Bids | 0 | - | 4.93 | 37,170 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.86 | 91,405 |
| Name a City - European Countries | 0 | - | 4.95 | 52,056 |
| Cities by Former Name | 0 | - | 4.86 | 71,492 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,579 |
| Nearest Capital City #1 | 0 | - | 4.82 | 52,501 |
| Solve the Secret Capital City | 0 | - | 4.77 | 139,132 |
| World Capitals by Proximity | 0 | - | 4.88 | 299,812 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 48,887 |
| World Capitals by Map | 0 | - | 5.00 | 242,406 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 50,370 |
| World Capitals By Letter - H | 0 | - | 4.85 | 71,324 |
| World Capitals By Letter - K | 0 | - | 4.82 | 65,987 |
| World Capitals By Letter - M | 0 | - | 4.90 | 86,079 |
| World Capitals By Letter - P | 0 | - | 4.85 | 67,161 |
| World Capitals By Letter - R | 0 | - | 4.88 | 72,361 |
| World Capitals By Letter - S | 0 | - | 4.89 | 74,623 |
| World Capitals By Letter - T | 0 | - | 4.81 | 66,512 |
| World Capitals By Letter - W | 0 | - | 4.88 | 82,302 |
| World Capitals By Letter - A | 0 | - | 4.96 | 104,791 |
| World Capitals By Letter - B | 0 | - | 4.84 | 97,005 |
| World Capitals By Letter - D | 0 | - | 4.91 | 79,213 |
| Countries That Use the Euro | 0 | - | 4.92 | 63,395 |
| Olympic Host Countries | 0 | - | 4.98 | 162,047 |
| 10 Easternmost Countries in Europe | 0 | - | 4.85 | 92,635 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 234,038 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,198 |
| The Only European Country ... | 0 | - | 4.94 | 179,022 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 195,549 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 86,686 |
| Countries of North America Quiz | 0 | - | 5.00 | 881,807 |
| Countries of Europe by Population | 0 | - | 4.98 | 127,401 |
| Most Populous Countries by Year | 0 | - | 4.81 | 93,941 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,823 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,823 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,543 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,681 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 70,473 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 205,546 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,730 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,705 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,234 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,737 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 67,015 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 87,078 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.91 | 89,838 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.94 | 80,466 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 193,635 |
| Most-Visited Cities in Europe | 0 | - | 4.92 | 56,748 |
| Random European City to Country | 0 | - | 4.72 | 106,447 |
| Random Asian City to Country | 0 | - | 4.52 | 33,720 |
| Cities with the Biggest Economies | 0 | - | 4.92 | 118,654 |
| Five Most Guessed Cities by Continent | 0 | - | 4.97 | 104,638 |
| Former Capitals Quiz | 0 | - | 4.81 | 58,057 |
| Europe Capital to Country | 0 | - | 4.99 | 220,261 |
| Asia Capital to Country | 0 | - | 4.96 | 105,804 |
| EU Capitals with No Hints | 0 | - | 4.96 | 124,956 |
| European Capitals by Map | 0 | - | 4.99 | 93,940 |
| African Capitals by Map | 0 | - | 4.99 | 110,943 |
| South America Capitals Quiz | 0 | - | 5.00 | 420,213 |
| Coldest World Capitals | 0 | - | 4.96 | 128,094 |
| Asian Capitals by Map | 0 | - | 4.98 | 47,249 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 79,060 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.95 | 72,204 |
| European Coastal Capitals | 0 | - | 4.95 | 77,286 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.90 | 46,637 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 228,685 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.91 | 194,093 |
| Capitals of Mediterranean Countries | 0 | - | 4.96 | 76,131 |
| Capital Cities with Spanish Names | 0 | - | 4.85 | 63,032 |
| Word Scramble - National Capitals | 0 | - | 4.20 | 420,913 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 19,605 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 186,840 |
| Countries of the Middle East | 0 | - | 4.96 | 173,964 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 74,935 |
| Slavic Countries | 0 | - | 4.96 | 100,706 |
| Countries by Emojis | 0 | - | 4.99 | 206,109 |
| African Island Countries | 0 | - | 4.96 | 89,480 |
| Countries With One Word And Two O's | 0 | - | 4.90 | 34,622 |
| Straight Shot to Antarctica | 0 | - | 4.90 | 37,408 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 49,820 |
| Random Asian Countries on a Map | 0 | - | 4.96 | 152,186 |
| Random African Countries on a Map | 0 | - | 4.98 | 249,741 |
| Random American Countries on a Map | 0 | - | 4.95 | 86,306 |
| Random European Countries on a Map | 0 | - | 4.98 | 260,279 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 143,903 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 145,408 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 111,179 |
| Asian Countries Ending in "IA" | 0 | - | 4.94 | 93,762 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 119,558 |
| Countries that Start with A | 0 | - | 4.98 | 1,947,426 |
| Countries that Start with B | 0 | - | 4.95 | 2,086,023 |
| Countries that Start with C | 0 | - | 4.96 | 1,650,025 |
| Countries that Start with D | 0 | - | 4.96 | 595,247 |
| Countries that Start with E | 0 | - | 4.95 | 1,234,744 |
| Countries that Start with G | 0 | - | 4.97 | 1,354,243 |
| Countries that Start with H | 0 | - | 4.95 | 507,643 |
| Countries that Start with I | 0 | - | 4.92 | 1,164,413 |
| Countries that Start with J | 0 | - | 4.98 | 510,751 |
| Countries that Start with K | 0 | - | 4.96 | 714,935 |
| Countries that Start with L | 0 | - | 4.98 | 973,868 |
| Countries that Start with N | 0 | - | 4.92 | 1,000,122 |
| Countries that Start with P | 0 | - | 4.95 | 1,102,710 |
| Countries that Start with S | 0 | - | 4.98 | 1,607,319 |
| Countries that Start with T | 0 | - | 4.89 | 911,990 |
| Countries that Start with U | 0 | - | 4.96 | 823,168 |
| Countries that Start with V | 0 | - | 4.98 | 551,196 |
| Countries that Start with F | 0 | - | 4.83 | 538,779 |
| Countries that Start with M | 0 | - | 4.97 | 1,256,347 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 127,098 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 197,898 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 160,701 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 125,794 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 107,119 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 132,398 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 138,553 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 104,813 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 131,024 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 88,834 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 96,711 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 201,325 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 143,202 |
