| Name a Valid European Capital | 0 | - | 4.95 | 153,244 |
| Name a City - European Countries | 0 | - | 4.90 | 65,937 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,787 |
| Europe Capital to Country | 0 | - | 4.99 | 251,553 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,648 |
| European Capitals by Map | 0 | - | 4.99 | 141,385 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,634 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,977 |
| European Coastal Capitals | 0 | - | 4.95 | 91,083 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,286 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,217 |
| Which City in Europe? | 0 | - | 4.83 | 107,757 |
| Official Cities in the UK | 0 | - | 4.89 | 285,444 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,396 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,461 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,575 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,626 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,269 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,697 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,362 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,436 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,714 |
| Which City in California? | 0 | - | 4.56 | 32,130 |
| Random European City to Country | 0 | - | 4.69 | 118,254 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,027 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,023 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,113 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,246 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,319 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 65,017 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,245 |
| Asia Capital to Country | 0 | - | 4.96 | 127,183 |
| African Capitals by Map | 0 | - | 4.99 | 141,401 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,584 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,069 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,736 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,053 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,425 |
| European Cities by Clue | 0 | - | 4.70 | 89,134 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,450 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,954 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,897 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,862 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,457 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,973 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,823 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,243 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,769 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,589 |
| Which City in Canada? | 0 | - | 4.83 | 57,267 |
| Which City in Texas? | 0 | - | 4.45 | 25,141 |
| Which City in Florida? | 0 | - | 4.61 | 11,018 |
| Cities in European History #1 | 0 | - | 4.63 | 134,431 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,423 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,851 |
| Random Asian City to Country | 0 | - | 4.56 | 44,585 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,328 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,588 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,316 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,855 |
| World Capitals Quiz | 0 | - | 5.00 | 5,095,473 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,444 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 201,665 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,434 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,583 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,558 |
| Capitals of the Stans | 0 | - | 4.95 | 27,057 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,624 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,696,028 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,555 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 48,766 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 49,029 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,707 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,528 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,131 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,443 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,948 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,901 |
| Random European Capital to Country | 0 | - | 4.98 | 191,828 |
| Random European Country to Capital | 0 | - | 4.93 | 165,661 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,874 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,259 |
| Random African Capital to Country | 0 | - | 4.97 | 101,141 |
| Random African Country to Capital | 0 | - | 4.94 | 71,610 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,983 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.43 | 54,848 |
| Which City in Germany? | 0 | - | 4.50 | 137,097 |
| Which City in Italy? | 0 | - | 4.68 | 90,438 |
| Which City in France? | 0 | - | 4.67 | 73,297 |
| Which City in Spain? | 0 | - | 4.50 | 50,070 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,764 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,990 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,156 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,725 |
| Random U.S. City to State | 0 | - | 4.45 | 76,747 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,186 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,391 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,074 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,110 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,483 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 148,941 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,250 |
| Boroughs of London | 0 | - | 4.63 | 88,340 |
| London Geography | 0 | - | 4.47 | 59,811 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,366 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,218 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,072 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,007 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,133 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,712 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,273 |
| North American Sports Cities | 0 | - | 4.83 | 172,938 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,490 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,980 |
| 20 Northernmost English Cities | 0 | - | 4.49 | 23,879 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,468 |
| 10 Westernmost Major Cities in Europe | 0 | - | 4.40 | 23,889 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,788 |
| Name a Valid World City | 0 | - | 4.84 | 71,733 |
| Cities by Former Name | 0 | - | 4.83 | 91,896 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,596 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,901 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,797 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,875 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,982 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,914 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,790 |
| Countries by Capital City | 0 | - | 5.00 | 69,074 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,641 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,051 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,627 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,619 |
| Moved Capital Cities | 0 | - | 4.96 | 74,521 |
| World Capitals by Map | 0 | - | 5.00 | 288,563 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,670 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,220 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,447 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,741 |
| Random Country to Capital | 0 | - | 4.98 | 925,434 |
| Capitals Starting With H | 0 | - | 4.91 | 92,911 |
| Capitals Starting With K | 0 | - | 4.88 | 83,966 |
| Capitals Starting With L | 0 | - | 4.81 | 88,421 |
| Capitals Starting With M | 0 | - | 4.93 | 108,394 |
| Capitals Starting With P | 0 | - | 4.88 | 78,538 |
| Capitals Starting With R | 0 | - | 4.87 | 82,135 |
| Capitals Starting With S | 0 | - | 4.90 | 86,128 |
| Capitals Starting With T | 0 | - | 4.85 | 76,465 |
| Capitals Starting With W | 0 | - | 4.87 | 91,488 |
| Capitals Starting With A | 0 | - | 4.97 | 128,551 |
| Capitals Starting With B | 0 | - | 4.89 | 118,946 |
| Capitals Starting With D | 0 | - | 4.93 | 96,814 |
| US States and State Capitals | 0 | - | 4.99 | 164,587 |
| Which City in Africa? | 0 | - | 4.77 | 57,941 |
| Which City in the Middle East? | 0 | - | 4.47 | 67,249 |
| Which City in Asia? | 0 | - | 4.52 | 51,515 |
| Which City in Latin America? | 0 | - | 4.63 | 47,122 |
| Which City in Australia? | 0 | - | 4.67 | 34,520 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,228 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,690 |
| The Only European Country ... | 0 | - | 4.91 | 218,280 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,109 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,674 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,381 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,662 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,696 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,658 |
| North America Cities by Map | 0 | - | 4.41 | 47,898 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,934 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,187 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,705 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,035 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,483 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,412 |
| Former Capitals | 0 | - | 4.88 | 71,605 |
| Capital Cities Chain | 0 | - | 4.84 | 83,178 |
| Coldest World Capitals | 0 | - | 4.95 | 134,062 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,958 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,353 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 68,487 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,658 |
| Asian Cities by Clue | 0 | - | 4.70 | 25,826 |
| Geography of Rome | 0 | - | 4.51 | 16,695 |
| Paris City Trivia | 0 | - | 4.31 | 35,594 |
| Venice Trivia | 0 | - | 4.45 | 10,481 |
| Milan Trivia | 0 | - | 4.56 | 15,201 |
| Berlin City Trivia | 0 | - | 4.67 | 13,289 |
| Amsterdam Trivia | 0 | - | 4.46 | 15,835 |
| Rome City Trivia | 0 | - | 4.49 | 20,713 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,165 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,910 |
| Slavic Countries | 0 | - | 4.96 | 112,160 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,047 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,264 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,812 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,593 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,627 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,864 |
| Counties of England | 0 | - | 4.97 | 801,088 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,707 |
| U.S. States with Shortest Maximum Distances to the Ocean | 0 | - | 4.66 | 21,264 |
