| New York City A-Z | 0 | - | 4.18 | 32,228 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,319 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,324 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,828 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,119 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,845 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,681,358 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,667 |
| Asia Capitals Quiz | 0 | - | 4.98 | 688,211 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,316 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,330 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,486 |
| Name a City - European Countries | 0 | - | 4.91 | 64,731 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,758 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,963 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 38,951 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,096 |
| Which City in California? | 0 | - | 4.56 | 31,948 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,944 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,281 |
| Europe Capital to Country | 0 | - | 4.99 | 248,609 |
| Asia Capital to Country | 0 | - | 4.96 | 126,059 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,936 |
| European Capitals by Map | 0 | - | 4.99 | 137,369 |
| African Capitals by Map | 0 | - | 4.99 | 132,638 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,616 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,501 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,881 |
| European Coastal Capitals | 0 | - | 4.95 | 90,022 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,303 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,854 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,546 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,530 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,971 |
| Official Cities in the UK | 0 | - | 4.89 | 281,576 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,728 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,022 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,263 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,280 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,610 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,370 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,666 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,871 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,895 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,625 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,473 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,418 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,863 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,857 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,736 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,934 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,519 |
| Which City in Texas? | 0 | - | 4.45 | 25,015 |
| Which City in Florida? | 0 | - | 4.61 | 10,951 |
| California A-Z | 0 | - | 4.49 | 28,735 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,222 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,519 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 145,808 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,014 |
| World Capitals Quiz | 0 | - | 5.00 | 5,045,080 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,635 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,948 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,454 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,829 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,501 |
| US States and State Capitals | 0 | - | 4.99 | 159,694 |
| Capitals of the Stans | 0 | - | 4.95 | 26,565 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,097 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,500 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 150,025 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,703 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,265 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,908 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,417 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,575,746 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,797 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,217 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,241 |
| Random European Capital to Country | 0 | - | 4.98 | 189,643 |
| Random European Country to Capital | 0 | - | 4.92 | 147,743 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,589 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,692 |
| Random African Capital to Country | 0 | - | 4.97 | 99,919 |
| Random African Country to Capital | 0 | - | 4.94 | 70,402 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,632 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,090 |
| Melbourne Suburbs | 0 | - | 4.84 | 52,162 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,727 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,943 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,713 |
| European Capitals by Airport Code | 0 | - | 4.92 | 35,699 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,796 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 173,479 |
| Random U.S. City to State | 0 | - | 4.45 | 75,556 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,082 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,362 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,874 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,831 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,411 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,759 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,135 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,714 |
| Which City in Europe? | 0 | - | 4.83 | 106,937 |
| Chicago A-Z | 0 | - | 4.25 | 15,477 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,612 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,291 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,487 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,658 |
| Find the City #1 | 0 | - | 4.97 | 42,408 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,426 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,959 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,932 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,131 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,985 |
| Countries by Capital City | 0 | - | 5.00 | 67,245 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,619 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,150 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,603 |
| Moved Capital Cities | 0 | - | 4.96 | 73,800 |
| Random Capital to Country | 0 | - | 4.99 | 2,582,472 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 74,831 |
| Random Country to Capital | 0 | - | 4.98 | 914,015 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,662 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,951 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,697 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,578 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,549 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,108 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,827 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,813 |
| Which City in Canada? | 0 | - | 4.82 | 56,820 |
| Boroughs of New York City | 0 | - | 4.47 | 84,264 |
| Washington D.C. Trivia | 0 | - | 4.44 | 38,897 |
| Rome A-Z | 0 | - | 4.39 | 24,435 |
| Paris A-Z | 0 | - | 4.16 | 17,407 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,723 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,874 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,239 |
| Australia A-Z | 0 | - | 4.54 | 49,851 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,706 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,348 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,950 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 36,025 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,957 |
| North American Sports Cities | 0 | - | 4.83 | 171,248 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,010 |
| Cities in European History #1 | 0 | - | 4.63 | 133,443 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,406 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,244 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,619 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,261 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,830 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,048 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,449 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,700 |
| ALL California Cities | 0 | - | 4.37 | 42,911 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,250 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,980 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,965 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,375 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,491 |
| Name a Valid World City | 0 | - | 4.83 | 70,434 |
| Cities by Former Name | 0 | - | 4.84 | 91,181 |
| Former Capitals | 0 | - | 4.88 | 71,236 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,171 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,385 |
| Capital Cities Chain | 0 | - | 4.84 | 82,139 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,101 |
| Coldest World Capitals | 0 | - | 4.95 | 133,170 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,348 |
| World Capitals by Map | 0 | - | 5.00 | 284,434 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,886 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,038 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,245 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 65,599 |
| Capitals Starting With H | 0 | - | 4.90 | 91,626 |
| Capitals Starting With K | 0 | - | 4.85 | 75,875 |
| Capitals Starting With L | 0 | - | 4.81 | 87,055 |
| Capitals Starting With M | 0 | - | 4.93 | 106,441 |
| Capitals Starting With P | 0 | - | 4.88 | 77,375 |
| Capitals Starting With R | 0 | - | 4.87 | 81,146 |
| Capitals Starting With S | 0 | - | 4.89 | 85,000 |
| Capitals Starting With T | 0 | - | 4.84 | 75,466 |
| Capitals Starting With W | 0 | - | 4.89 | 90,786 |
| Capitals Starting With A | 0 | - | 4.97 | 126,814 |
| Capitals Starting With B | 0 | - | 4.89 | 117,526 |
| Capitals Starting With D | 0 | - | 4.93 | 95,611 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,964 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,833 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,393 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,888 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,359 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,642 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,062 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,309 |
| India A-Z | 0 | - | 4.42 | 33,991 |
| Italy A-Z | 0 | - | 4.49 | 57,934 |
| China A-Z | 0 | - | 4.55 | 66,899 |
| Germany A-Z | 0 | - | 4.56 | 62,421 |
| Scotland A-Z | 0 | - | 4.73 | 41,113 |
