| Which City in Europe? | 0 | - | 4.83 | 107,975 |
| Which City in Canada? | 0 | - | 4.83 | 57,396 |
| World Capitals by a Single Clue #2 | 0 | - | 4.46 | 54,138 |
| World Capitals by a Single Clue #4 | 0 | - | 4.42 | 45,660 |
| World Capitals by a Single Clue #1 | 0 | - | 4.52 | 56,394 |
| European Cities by Clue | 0 | - | 4.70 | 89,207 |
| Random Capital to Country | 0 | - | 4.99 | 2,603,505 |
| Random Country to Capital | 0 | - | 4.98 | 929,575 |
| Which City in Africa? | 0 | - | 4.77 | 58,029 |
| Which City in Asia? | 0 | - | 4.52 | 51,613 |
| Which City in Latin America? | 0 | - | 4.63 | 47,169 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,799 |
| Capital Cities Chain | 0 | - | 4.84 | 83,489 |
| Solve the Secret Capital City | 0 | - | 4.81 | 164,674 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,685 |
| World Capitals by a Single Clue #3 | 0 | - | 4.35 | 46,372 |
| Asian Cities by Clue | 0 | - | 4.70 | 25,852 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,448 |
| World Capitals Quiz | 0 | - | 5.00 | 5,111,995 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 228,070 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,233 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,743 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,758 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,425 |
| Random World Capitals on a Map | 0 | - | 4.93 | 135,983 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,492 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,976 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,627 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,905 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,178 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,913 |
| Name a Valid African Country | 0 | - | 4.98 | 155,191 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,059 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,347 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,615 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,150 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 76,153 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,217 |
| Random European Capital to Country | 0 | - | 4.98 | 192,302 |
| Random European Country to Capital | 0 | - | 4.93 | 166,023 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,073 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,537 |
| Random African Capital to Country | 0 | - | 4.97 | 101,439 |
| Random African Country to Capital | 0 | - | 4.94 | 71,851 |
| Which City in the United States? | 0 | - | 4.21 | 57,209 |
| Which City in the Middle East? | 0 | - | 4.47 | 67,331 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,215 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,619 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,861 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,429 |
| Countries with Megacities | 0 | - | 4.99 | 267,689 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,076 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,290 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,416 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,404 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,465 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,510 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,059 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,307 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,389 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,322 |
| Countries by Capital City | 0 | - | 5.00 | 69,564 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,094 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,324 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,285 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,924 |
| Moved Capital Cities | 0 | - | 4.96 | 74,712 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,712 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,835 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,714 |
| Resort Towns by Country | 0 | - | 4.30 | 40,096 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,851 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,698 |
| Countries of Africa | 0 | - | 5.00 | 2,563,392 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,545 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,437 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,462 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,788 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,973 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,334 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,695 |
| North American Sports Cities | 0 | - | 4.82 | 173,260 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,593 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,027 |
| Name a City - European Countries | 0 | - | 4.89 | 66,338 |
| Cities by Former Name | 0 | - | 4.83 | 92,161 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,969 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,026 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,941 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,498 |
| World Capitals by Map | 0 | - | 5.00 | 289,804 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,901 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,313 |
| Capitals Starting With H | 0 | - | 4.91 | 93,413 |
| Capitals Starting With K | 0 | - | 4.88 | 84,484 |
| Capitals Starting With L | 0 | - | 4.81 | 96,044 |
| Capitals Starting With M | 0 | - | 4.94 | 109,321 |
| Capitals Starting With P | 0 | - | 4.88 | 79,097 |
| Capitals Starting With R | 0 | - | 4.88 | 82,578 |
| Capitals Starting With S | 0 | - | 4.90 | 86,668 |
| Capitals Starting With T | 0 | - | 4.86 | 76,921 |
| Capitals Starting With W | 0 | - | 4.87 | 91,778 |
| Capitals Starting With A | 0 | - | 4.97 | 129,237 |
| Capitals Starting With B | 0 | - | 4.89 | 119,610 |
| Capitals Starting With D | 0 | - | 4.94 | 97,291 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,116 |
| Olympic Host Countries | 0 | - | 4.98 | 202,160 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,196 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,412 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,736 |
| The Only European Country ... | 0 | - | 4.91 | 219,439 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,231 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,761 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,970 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,804 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,755 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,512 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,562 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,956 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,516 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,805 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,859 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,007 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,972 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,986 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,596 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,268 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,563 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,913 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,846 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,817 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,630 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,032 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,712 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,279 |
| Random European City to Country | 0 | - | 4.69 | 118,521 |
| Random Asian City to Country | 0 | - | 4.56 | 44,629 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,779 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,667 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,945 |
| Former Capitals | 0 | - | 4.88 | 71,717 |
| Europe Capital to Country | 0 | - | 4.99 | 252,474 |
| Asia Capital to Country | 0 | - | 4.96 | 127,659 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,208 |
| European Capitals by Map | 0 | - | 4.99 | 142,425 |
| African Capitals by Map | 0 | - | 4.99 | 142,507 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,479 |
| Coldest World Capitals | 0 | - | 4.95 | 134,239 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,094 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,075 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,335 |
| European Coastal Capitals | 0 | - | 4.95 | 91,458 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,256 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,171 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,111 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,228 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,231 |
| Word Scramble - National Capitals | 0 | - | 4.19 | 492,260 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,147 |
| Countries of the Middle East | 0 | - | 4.96 | 203,178 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,326 |
| Slavic Countries | 0 | - | 4.96 | 112,473 |
| Countries by Emojis | 0 | - | 4.99 | 242,750 |
| African Island Countries | 0 | - | 4.96 | 102,692 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,684 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,225 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,678 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,480 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,780 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,079 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,962 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,434 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,892 |
| Countries that Start with A | 0 | - | 4.98 | 2,177,748 |
| Countries that Start with B | 0 | - | 4.95 | 2,308,368 |
| Countries that Start with C | 0 | - | 4.96 | 1,832,956 |
| Countries that Start with D | 0 | - | 4.96 | 717,453 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,255 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,798 |
| Countries that Start with H | 0 | - | 4.96 | 610,288 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,499 |
| Countries that Start with J | 0 | - | 4.98 | 607,684 |
| Countries that Start with K | 0 | - | 4.97 | 821,507 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,777 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,825 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,993 |
| Countries that Start with S | 0 | - | 4.98 | 1,764,440 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,638 |
| Countries that Start with U | 0 | - | 4.97 | 909,033 |
| Countries that Start with V | 0 | - | 4.98 | 612,420 |
| Countries that Start with F | 0 | - | 4.83 | 621,837 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,281 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,319 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,074 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,725 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,677 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,061 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,957 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,488 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,022 |
