| Name a Valid European Capital | 0 | - | 4.95 | 153,297 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,338 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,533 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,294 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,200 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,319 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,955 |
| Random European Capital to Country | 0 | - | 4.98 | 191,860 |
| Random European Country to Capital | 0 | - | 4.93 | 165,679 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,886 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,277 |
| Random African Capital to Country | 0 | - | 4.97 | 101,159 |
| Random African Country to Capital | 0 | - | 4.94 | 71,629 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,801 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,156 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,284 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,240 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,802 |
| Europe Capital to Country | 0 | - | 4.99 | 251,632 |
| Asia Capital to Country | 0 | - | 4.96 | 127,223 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,677 |
| European Capitals by Map | 0 | - | 4.99 | 141,495 |
| African Capitals by Map | 0 | - | 4.99 | 141,547 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,646 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,661 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,001 |
| European Coastal Capitals | 0 | - | 4.95 | 91,110 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,087 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,860 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,348 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,063 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,918 |
| World Capitals Quiz | 0 | - | 5.00 | 5,096,717 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,972 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,564 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,008 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,424 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,871 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,266 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,473 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,796 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,592 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,621 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,886 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,554 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,946 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,465 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,114 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,724 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,457 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,738 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,573 |
| Name a Valid African Country | 0 | - | 4.98 | 154,802 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,610 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,197 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,729 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,436 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,869 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,798 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,444 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,291 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 122,613 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,681 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,848 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,573 |
| Countries with Megacities | 0 | - | 4.99 | 266,069 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,340 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,796 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,604 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,921 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,007 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,934 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,817 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,004 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,944 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,828 |
| Countries by Capital City | 0 | - | 5.00 | 69,109 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,678 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,070 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,170 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,114 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,643 |
| Moved Capital Cities | 0 | - | 4.96 | 74,534 |
| 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 | 107,769 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,129 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,335 |
| Countries that Beat China | 0 | - | 4.85 | 116,518 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,393 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 116,220 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,612 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,149 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,674 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,480 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,757 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,020 |
| 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 | 172,960 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,501 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,804 |
| Name a City - European Countries | 0 | - | 4.90 | 65,963 |
| Cities by Former Name | 0 | - | 4.83 | 91,915 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,609 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,890 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,640 |
| World Capitals by Map | 0 | - | 5.00 | 288,670 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,691 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,521 |
| Random Country to Capital | 0 | - | 4.98 | 925,674 |
| Capitals Starting With H | 0 | - | 4.91 | 92,979 |
| Capitals Starting With K | 0 | - | 4.88 | 84,026 |
| Capitals Starting With L | 0 | - | 4.81 | 90,513 |
| Capitals Starting With M | 0 | - | 4.93 | 108,523 |
| Capitals Starting With P | 0 | - | 4.88 | 78,618 |
| Capitals Starting With R | 0 | - | 4.88 | 82,183 |
| Capitals Starting With S | 0 | - | 4.90 | 86,201 |
| Capitals Starting With T | 0 | - | 4.85 | 76,518 |
| Capitals Starting With W | 0 | - | 4.87 | 91,526 |
| Capitals Starting With A | 0 | - | 4.97 | 128,645 |
| Capitals Starting With B | 0 | - | 4.89 | 119,044 |
| Capitals Starting With D | 0 | - | 4.93 | 96,862 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 149,689 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,285 |
| Olympic Host Countries | 0 | - | 4.98 | 201,600 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,626 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,744 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 312,491 |
| The Only European Country ... | 0 | - | 4.91 | 218,360 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,454 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,161 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,840 |
| Countries of Africa | 0 | - | 5.00 | 2,553,029 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 201,691 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,642 |
| Which City in Canada? | 0 | - | 4.83 | 57,274 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,965 |
| Single Vowel Capitals | 0 | - | 4.82 | 14,659 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,381 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,170 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,831 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,085 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,461 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,591 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,720 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,103 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,508 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,579 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,732 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,414 |
| 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 | 73,754 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,615 |
| 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 | 46,728 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,083 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,820 |
| Random European City to Country | 0 | - | 4.69 | 118,267 |
| Random Asian City to Country | 0 | - | 4.56 | 44,590 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,502 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,432 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,644 |
| Former Capitals | 0 | - | 4.88 | 71,616 |
| Capital Cities Chain | 0 | - | 4.84 | 83,202 |
| Coldest World Capitals | 0 | - | 4.95 | 134,071 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,980 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,386 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,060 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,662 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,236 |
| Countries of the Middle East | 0 | - | 4.96 | 202,273 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,948 |
| Slavic Countries | 0 | - | 4.96 | 112,188 |
| African Island Countries | 0 | - | 4.96 | 102,250 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,081 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,074 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 52,593 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,461 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,705 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,573 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,112 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,323 |
| Countries that Start with A | 0 | - | 4.98 | 2,171,946 |
| Countries that Start with B | 0 | - | 4.95 | 2,303,011 |
| Countries that Start with C | 0 | - | 4.96 | 1,828,763 |
| Countries that Start with D | 0 | - | 4.96 | 714,505 |
| Countries that Start with E | 0 | - | 4.95 | 1,382,830 |
| Countries that Start with G | 0 | - | 4.97 | 1,509,137 |
| Countries that Start with H | 0 | - | 4.96 | 608,197 |
| Countries that Start with I | 0 | - | 4.92 | 1,292,804 |
| Countries that Start with J | 0 | - | 4.98 | 605,671 |
| Countries that Start with K | 0 | - | 4.97 | 819,351 |
| Countries that Start with L | 0 | - | 4.98 | 1,095,061 |
| Countries that Start with N | 0 | - | 4.93 | 1,122,095 |
| Countries that Start with P | 0 | - | 4.94 | 1,220,365 |
| Countries that Start with S | 0 | - | 4.98 | 1,760,814 |
| Countries that Start with T | 0 | - | 4.90 | 1,013,544 |
