| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,343 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,535 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,301 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,228 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,354 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,295 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,959 |
| Random European Capital to Country | 0 | - | 4.98 | 191,861 |
| Random European Country to Capital | 0 | - | 4.93 | 165,680 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,887 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,279 |
| Random African Capital to Country | 0 | - | 4.97 | 101,159 |
| Random African Country to Capital | 0 | - | 4.94 | 71,629 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,117 |
| Europe Capital to Country | 0 | - | 4.99 | 251,636 |
| Asia Capital to Country | 0 | - | 4.96 | 127,224 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,679 |
| European Capitals by Map | 0 | - | 4.99 | 141,498 |
| African Capitals by Map | 0 | - | 4.99 | 141,559 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,647 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,664 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,003 |
| European Coastal Capitals | 0 | - | 4.95 | 91,114 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,089 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,876 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,360 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,064 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,157 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,287 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,242 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,821 |
| World Capitals Quiz | 0 | - | 5.00 | 5,096,842 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,985 |
| Countries that Start with A | 0 | - | 4.98 | 2,172,004 |
| Countries that Start with B | 0 | - | 4.95 | 2,303,059 |
| Countries that Start with C | 0 | - | 4.96 | 1,828,803 |
| Countries that Start with D | 0 | - | 4.96 | 714,523 |
| Countries that Start with E | 0 | - | 4.95 | 1,382,854 |
| Countries that Start with G | 0 | - | 4.97 | 1,509,167 |
| Countries that Start with H | 0 | - | 4.96 | 608,213 |
| Countries that Start with I | 0 | - | 4.92 | 1,292,825 |
| Countries that Start with J | 0 | - | 4.98 | 605,681 |
| Countries that Start with K | 0 | - | 4.97 | 819,366 |
| Countries that Start with L | 0 | - | 4.98 | 1,095,084 |
| Countries that Start with N | 0 | - | 4.93 | 1,122,118 |
| Countries that Start with P | 0 | - | 4.94 | 1,220,393 |
| Countries that Start with S | 0 | - | 4.98 | 1,760,843 |
| Countries that Start with T | 0 | - | 4.90 | 1,013,560 |
| Countries that Start with U | 0 | - | 4.97 | 907,449 |
| Countries that Start with V | 0 | - | 4.98 | 611,246 |
| Countries that Start with F | 0 | - | 4.83 | 620,256 |
| Countries that Start with M | 0 | - | 4.97 | 1,386,432 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,575 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,013 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,428 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,875 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,269 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,474 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,799 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,593 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,887 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,044 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,584 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,003 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,622 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,467 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,458 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,749 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,575 |
| Name a Valid African Country | 0 | - | 4.98 | 154,803 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,721 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,857 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,600 |
| Countries with Megacities | 0 | - | 4.99 | 266,086 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,348 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,805 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,627 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,930 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,013 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,936 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,823 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,006 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,946 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,832 |
| Countries by Capital City | 0 | - | 5.00 | 69,110 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,678 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,072 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,181 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,202 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,646 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,730 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,436 |
| Moved Capital Cities | 0 | - | 4.96 | 74,544 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,919 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,444 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,134 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,292 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,116 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,501 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,253 |
| Which City in Europe? | 0 | - | 4.83 | 107,771 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,336 |
| Countries that Beat China | 0 | - | 4.85 | 116,521 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,397 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,153 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,679 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,482 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,759 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,030 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,441 |
| Resort Towns by Country | 0 | - | 4.30 | 40,068 |
| North American Sports Cities | 0 | - | 4.83 | 172,961 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,501 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,806 |
| Name a City - European Countries | 0 | - | 4.90 | 65,965 |
| Cities by Former Name | 0 | - | 4.83 | 91,915 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,610 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,892 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,649 |
| World Capitals by Map | 0 | - | 5.00 | 288,681 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,691 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,555 |
| Random Country to Capital | 0 | - | 4.98 | 925,690 |
| Capitals Starting With H | 0 | - | 4.91 | 92,995 |
| Capitals Starting With K | 0 | - | 4.88 | 84,042 |
| Capitals Starting With L | 0 | - | 4.81 | 90,913 |
| Capitals Starting With M | 0 | - | 4.93 | 108,549 |
| Capitals Starting With P | 0 | - | 4.88 | 78,638 |
| Capitals Starting With R | 0 | - | 4.88 | 82,200 |
| Capitals Starting With S | 0 | - | 4.90 | 86,220 |
| Capitals Starting With T | 0 | - | 4.85 | 76,529 |
| Capitals Starting With W | 0 | - | 4.87 | 91,538 |
| Capitals Starting With A | 0 | - | 4.97 | 128,661 |
| Capitals Starting With B | 0 | - | 4.89 | 119,070 |
| Capitals Starting With D | 0 | - | 4.93 | 96,878 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 149,765 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,292 |
| Olympic Host Countries | 0 | - | 4.98 | 201,603 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,630 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,748 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,508 |
| The Only European Country ... | 0 | - | 4.91 | 218,372 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,459 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,164 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,842 |
| Countries of Africa | 0 | - | 5.00 | 2,553,103 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,660 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,389 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,174 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,831 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,094 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,465 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,592 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,723 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,513 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,584 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,733 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,417 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,096 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,437 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,758 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,618 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,712 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,263 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,731 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,089 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,824 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,506 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,438 |
| Former Capitals | 0 | - | 4.88 | 71,618 |
| Capital Cities Chain | 0 | - | 4.84 | 83,203 |
| Coldest World Capitals | 0 | - | 4.95 | 134,075 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,980 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 201,692 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,389 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,644 |
| Which City in Canada? | 0 | - | 4.83 | 57,274 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,244 |
| Countries of the Middle East | 0 | - | 4.96 | 202,279 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,950 |
| Slavic Countries | 0 | - | 4.96 | 112,189 |
| African Island Countries | 0 | - | 4.96 | 102,254 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,081 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,081 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,601 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,462 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,707 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,029,004 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,574 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,116 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,327 |
| Countries that Start with R | 0 | - | 4.43 | 449,526 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,958 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,075 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,291 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,356 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,862 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,646 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,843 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,314 |
