| Name a Valid European Capital | 0 | - | 4.95 | 150,784 |
| Name a City - European Countries | 0 | - | 4.92 | 64,344 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,753 |
| Europe Capital to Country | 0 | - | 4.99 | 247,451 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,398 |
| European Capitals by Map | 0 | - | 4.99 | 136,151 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,145 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,576 |
| European Coastal Capitals | 0 | - | 4.95 | 89,713 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,685 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,797 |
| Which City in Europe? | 0 | - | 4.83 | 106,595 |
| Official Cities in the UK | 0 | - | 4.89 | 280,415 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,379 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,680 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,744 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,317 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,155 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,837 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,647 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,178 |
| Which City in California? | 0 | - | 4.56 | 31,876 |
| European Capitals by Airport Code | 0 | - | 4.92 | 35,401 |
| Random European City to Country | 0 | - | 4.69 | 116,285 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,938 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,563 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,246 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,605 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,938 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,809 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,315 |
| Asia Capital to Country | 0 | - | 4.96 | 125,709 |
| African Capitals by Map | 0 | - | 4.99 | 132,113 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,078 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,169 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,635 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,407 |
| Word Scramble - European Capitals | 0 | - | 4.72 | 93,750 |
| European Cities by Clue | 0 | - | 4.70 | 88,793 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,422 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,853 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,082 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,759 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,631 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,078 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,139 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,414 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,168 |
| Which City in Canada? | 0 | - | 4.83 | 56,645 |
| Which City in Texas? | 0 | - | 4.45 | 24,969 |
| Which City in Florida? | 0 | - | 4.61 | 10,922 |
| Cities in European History #1 | 0 | - | 4.63 | 133,069 |
| European Cities by Map #2 | 0 | - | 4.48 | 47,186 |
| European Cities by Map #1 | 0 | - | 4.64 | 55,555 |
| Random Asian City to Country | 0 | - | 4.56 | 44,386 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,161 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,296 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,709 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,764 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,543 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,373 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,199 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,151 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,611 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,171 |
| Capitals of the Stans | 0 | - | 4.95 | 26,393 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,319 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,186 |
| European Cities with the Biggest Economies | 0 | - | 4.62 | 38,172 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 47,612 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 48,231 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,301 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,353 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,411 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,146 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,993 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,222 |
| Random European Capital to Country | 0 | - | 4.98 | 189,148 |
| Random European Country to Capital | 0 | - | 4.92 | 147,396 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,340 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,371 |
| Random African Capital to Country | 0 | - | 4.97 | 99,711 |
| Random African Country to Capital | 0 | - | 4.94 | 70,197 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,733 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,557 |
| Which City in Germany? | 0 | - | 4.50 | 134,955 |
| Which City in Italy? | 0 | - | 4.55 | 78,139 |
| Which City in France? | 0 | - | 4.64 | 72,389 |
| Which City in Spain? | 0 | - | 4.50 | 49,426 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,934 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,976 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,593 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,870 |
| Random U.S. City to State | 0 | - | 4.45 | 75,295 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,043 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,004 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,250 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,790 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,510 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,308 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,873 |
| Boroughs of London | 0 | - | 4.63 | 87,013 |
| London Geography | 0 | - | 4.47 | 59,449 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,859 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,442 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,330 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,849 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,327 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,646 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,084 |
| North American Sports Cities | 0 | - | 4.83 | 170,855 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,906 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 77,356 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,700 |
| 20 Northernmost English Cities | 0 | - | 4.49 | 23,776 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,275 |
| 10 Westernmost Major Cities in Europe | 0 | - | 4.40 | 23,613 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,696 |
| Name a City - Asian Countries | 0 | - | 4.41 | 19,373 |
| Name a Valid World City | 0 | - | 4.83 | 70,086 |
| Cities by Former Name | 0 | - | 4.84 | 90,938 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,673 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,889 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,619 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,223 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,572 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,559 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,351 |
| Countries by Capital City | 0 | - | 5.00 | 66,573 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,292 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,872 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,393 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,881 |
| Moved Capital Cities | 0 | - | 4.96 | 73,560 |
| World Capitals by Map | 0 | - | 5.00 | 283,087 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,640 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,471 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,353 |
| Random Country to Capital | 0 | - | 4.98 | 911,301 |
| Capitals Starting With H | 0 | - | 4.90 | 90,661 |
| Capitals Starting With K | 0 | - | 4.85 | 75,652 |
| Capitals Starting With L | 0 | - | 4.81 | 86,796 |
| Capitals Starting With M | 0 | - | 4.93 | 106,003 |
| Capitals Starting With P | 0 | - | 4.88 | 77,154 |
| Capitals Starting With R | 0 | - | 4.87 | 80,942 |
| Capitals Starting With S | 0 | - | 4.89 | 84,776 |
| Capitals Starting With T | 0 | - | 4.84 | 75,264 |
| Capitals Starting With W | 0 | - | 4.89 | 90,584 |
| Capitals Starting With A | 0 | - | 4.97 | 126,499 |
| Capitals Starting With B | 0 | - | 4.89 | 117,245 |
| Capitals Starting With D | 0 | - | 4.93 | 95,344 |
| US States and State Capitals | 0 | - | 4.99 | 158,380 |
| Which City in Africa? | 0 | - | 4.78 | 57,560 |
| Which City in the Middle East? | 0 | - | 4.47 | 66,785 |
| Which City in Asia? | 0 | - | 4.51 | 51,096 |
| Which City in Latin America? | 0 | - | 4.63 | 46,835 |
| Which City in Australia? | 0 | - | 4.67 | 34,216 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,899 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,474 |
| The Only European Country ... | 0 | - | 4.91 | 213,715 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,457 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,225 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,836 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,455 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,298 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,130 |
| North America Cities by Map | 0 | - | 4.41 | 47,606 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,800 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,009 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,156 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,050 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,637 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,308 |
| Former Capitals | 0 | - | 4.88 | 71,129 |
| Capital Cities Chain | 0 | - | 4.84 | 81,889 |
| Coldest World Capitals | 0 | - | 4.95 | 133,028 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,764 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,956 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 64,830 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,324 |
| Asian Cities by Clue | 0 | - | 4.70 | 25,711 |
| Geography of Rome | 0 | - | 4.51 | 16,625 |
| Paris City Trivia | 0 | - | 4.31 | 35,461 |
| Venice Trivia | 0 | - | 4.45 | 10,418 |
| Milan Trivia | 0 | - | 4.56 | 15,114 |
| Berlin City Trivia | 0 | - | 4.67 | 13,072 |
| Amsterdam Trivia | 0 | - | 4.46 | 15,752 |
| Rome City Trivia | 0 | - | 4.49 | 20,581 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,232 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,216 |
| Slavic Countries | 0 | - | 4.96 | 110,820 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,286 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,672 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,256 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,447 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,154 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,057 |
| Counties of England | 0 | - | 4.97 | 788,910 |
| Major U.S. Rivers with State Names | 0 | - | 4.49 | 39,355 |
| U.S. States with Shortest Maximum Distances to the Ocean | 0 | - | 4.66 | 20,619 |
