| Which City in Europe? | 0 | - | 4.83 | 106,562 |
| Which City in Canada? | 0 | - | 4.82 | 56,614 |
| World Capitals by a Single Clue #2 | 0 | - | 4.46 | 53,296 |
| World Capitals by a Single Clue #4 | 0 | - | 4.41 | 38,192 |
| World Capitals by a Single Clue #1 | 0 | - | 4.51 | 55,399 |
| European Cities by Clue | 0 | - | 4.70 | 88,772 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,539 |
| Random Country to Capital | 0 | - | 4.98 | 910,685 |
| Which City in Africa? | 0 | - | 4.78 | 57,550 |
| Which City in Asia? | 0 | - | 4.51 | 51,083 |
| Which City in Latin America? | 0 | - | 4.63 | 46,823 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,720 |
| Capital Cities Chain | 0 | - | 4.84 | 81,825 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,894 |
| World Capitals by a Single Clue #3 | 0 | - | 4.35 | 45,744 |
| Asian Cities by Clue | 0 | - | 4.70 | 25,707 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,053 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,577 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,159 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,260 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,275 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,371 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,020 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,412 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,578 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,201 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,575 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,363 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,953 |
| Name a Valid African Country | 0 | - | 4.98 | 152,835 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,169 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,377 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,963 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 74,845 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,829 |
| Random European Capital to Country | 0 | - | 4.98 | 189,081 |
| Random European Country to Capital | 0 | - | 4.92 | 147,351 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,298 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,335 |
| Random African Capital to Country | 0 | - | 4.97 | 99,678 |
| Random African Country to Capital | 0 | - | 4.94 | 70,161 |
| Which City in the United States? | 0 | - | 4.21 | 56,632 |
| Which City in the Middle East? | 0 | - | 4.47 | 66,763 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,876 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,765 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,232 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,896 |
| Countries with Megacities | 0 | - | 4.99 | 246,281 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,820 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,750 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,276 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,689 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,612 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,830 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,579 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,531 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,494 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,253 |
| Countries by Capital City | 0 | - | 5.00 | 66,486 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,239 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,820 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,022 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,352 |
| Moved Capital Cities | 0 | - | 4.96 | 73,526 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,422 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,408 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,798 |
| Resort Towns by Country | 0 | - | 4.30 | 39,911 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,513 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,974 |
| Countries of Africa | 0 | - | 5.00 | 2,505,048 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,043 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,740 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,734 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,776 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,410 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,505 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,169 |
| North American Sports Cities | 0 | - | 4.83 | 170,776 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,886 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,647 |
| Name a City - European Countries | 0 | - | 4.92 | 64,281 |
| Cities by Former Name | 0 | - | 4.84 | 90,884 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,643 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,196 |
| Solve the Secret Capital City | 0 | - | 4.80 | 162,370 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,805 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,323 |
| World Capitals by Map | 0 | - | 5.00 | 282,889 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,607 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,714 |
| Capitals Starting With H | 0 | - | 4.90 | 89,579 |
| Capitals Starting With K | 0 | - | 4.85 | 75,543 |
| Capitals Starting With M | 0 | - | 4.93 | 105,837 |
| Capitals Starting With P | 0 | - | 4.88 | 77,041 |
| Capitals Starting With R | 0 | - | 4.87 | 80,844 |
| Capitals Starting With S | 0 | - | 4.89 | 84,659 |
| Capitals Starting With T | 0 | - | 4.84 | 75,170 |
| Capitals Starting With W | 0 | - | 4.89 | 90,491 |
| Capitals Starting With A | 0 | - | 4.97 | 126,354 |
| Capitals Starting With B | 0 | - | 4.89 | 117,110 |
| Capitals Starting With D | 0 | - | 4.93 | 95,203 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,767 |
| Olympic Host Countries | 0 | - | 4.98 | 198,779 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,740 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,365 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 302,890 |
| The Only European Country ... | 0 | - | 4.91 | 213,547 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,876 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,350 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,161 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,636 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,761 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,083 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,091 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,184 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,776 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,306 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,483 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,333 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,181 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,193 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,530 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,495 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,731 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,123 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,268 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,256 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,104 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,912 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,671 |
| Random European City to Country | 0 | - | 4.69 | 116,234 |
| Random Asian City to Country | 0 | - | 4.56 | 44,379 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,526 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,276 |
| U.S. Cities With Spanish Names | 0 | - | 4.93 | 21,987 |
| Former Capitals | 0 | - | 4.88 | 71,093 |
| Europe Capital to Country | 0 | - | 4.99 | 247,325 |
| Asia Capital to Country | 0 | - | 4.96 | 125,641 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,323 |
| European Capitals by Map | 0 | - | 4.99 | 135,989 |
| African Capitals by Map | 0 | - | 4.99 | 132,071 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,888 |
| Coldest World Capitals | 0 | - | 4.95 | 132,991 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,985 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,083 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,536 |
| European Coastal Capitals | 0 | - | 4.95 | 89,667 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,149 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,449 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,570 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,385 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,706 |
| Word Scramble - National Capitals | 0 | - | 4.20 | 484,014 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,079 |
| Countries of the Middle East | 0 | - | 4.96 | 198,735 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,173 |
| Slavic Countries | 0 | - | 4.96 | 110,782 |
| Countries by Emojis | 0 | - | 4.99 | 235,876 |
| African Island Countries | 0 | - | 4.96 | 100,674 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,036 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,463 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,199 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,842 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,020 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 168,981 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,599 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,379 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 151,946 |
| Countries that Start with A | 0 | - | 4.98 | 2,145,015 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,309 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,036 |
| Countries that Start with D | 0 | - | 4.96 | 700,683 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,496 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,692 |
| Countries that Start with H | 0 | - | 4.96 | 597,207 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,383 |
| Countries that Start with J | 0 | - | 4.98 | 595,289 |
| Countries that Start with K | 0 | - | 4.96 | 808,736 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,093 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,967 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,785 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,424 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,569 |
| Countries that Start with U | 0 | - | 4.97 | 899,373 |
| Countries that Start with V | 0 | - | 4.98 | 604,633 |
| Countries that Start with F | 0 | - | 4.83 | 611,598 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,456 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,685 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,505 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,603 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,681 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,119 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,090 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,209 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,481 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,170 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,326 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,143 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,441 |
