| New York City A-Z | 0 | - | 4.18 | 32,315 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,168 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,903 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,040 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,901 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,233 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,691,378 |
| Africa Capitals Quiz | 0 | - | 4.99 | 738,730 |
| Asia Capitals Quiz | 0 | - | 4.98 | 693,931 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,559 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,298 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,514 |
| Name a City - European Countries | 0 | - | 4.90 | 65,495 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,240 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,159 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,068 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,210 |
| Which City in California? | 0 | - | 4.56 | 32,051 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,838 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,255 |
| Europe Capital to Country | 0 | - | 4.99 | 250,593 |
| Asia Capital to Country | 0 | - | 4.96 | 126,754 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,044 |
| European Capitals by Map | 0 | - | 4.99 | 139,615 |
| African Capitals by Map | 0 | - | 4.99 | 134,041 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,546 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,190 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,531 |
| European Coastal Capitals | 0 | - | 4.95 | 90,708 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,630 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,407 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,267 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,878 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,749 |
| Official Cities in the UK | 0 | - | 4.89 | 284,187 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,436 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,880 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,461 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,095 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,809 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,985 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,231 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,574 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,126 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,417 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,922 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,238 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,210 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,474 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,350 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 89,161 |
| Which City in Texas? | 0 | - | 4.45 | 25,105 |
| Which City in Florida? | 0 | - | 4.61 | 10,996 |
| California A-Z | 0 | - | 4.49 | 28,799 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,269 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 148,672 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,592 |
| World Capitals Quiz | 0 | - | 5.00 | 5,079,239 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,186 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,226 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,550 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,636 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,125 |
| US States and State Capitals | 0 | - | 4.99 | 163,013 |
| Capitals of the Stans | 0 | - | 4.95 | 26,877 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,381 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,603 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,721 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,983 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,465 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,127 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,460 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,588,743 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,612 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,366 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,729 |
| Random European Capital to Country | 0 | - | 4.98 | 191,061 |
| Random European Country to Capital | 0 | - | 4.93 | 165,275 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,534 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,850 |
| Random African Capital to Country | 0 | - | 4.97 | 100,797 |
| Random African Country to Capital | 0 | - | 4.94 | 71,322 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,756 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,248 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,416 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,792 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,136 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,000 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,297 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,836 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,060 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,844 |
| Random U.S. City to State | 0 | - | 4.45 | 76,375 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,294 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,779 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,024 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,927 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,892 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,038 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,842 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,861 |
| Which City in Europe? | 0 | - | 4.83 | 107,482 |
| Chicago A-Z | 0 | - | 4.25 | 15,520 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,001 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,790 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,330 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,573 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,779 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,413 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,487 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,598 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,354 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,173 |
| Countries by Capital City | 0 | - | 5.00 | 68,474 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,267 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,744 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,310 |
| Moved Capital Cities | 0 | - | 4.96 | 74,282 |
| Random Capital to Country | 0 | - | 4.99 | 2,593,069 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,607 |
| Random Country to Capital | 0 | - | 4.98 | 921,704 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 114,072 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,065 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,790 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,702 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,619 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,216 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,887 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,271 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,346 |
| Which City in Canada? | 0 | - | 4.83 | 57,112 |
| Boroughs of New York City | 0 | - | 4.47 | 84,662 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,035 |
| Rome A-Z | 0 | - | 4.39 | 24,492 |
| Paris A-Z | 0 | - | 4.16 | 17,453 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,253 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,340 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,986 |
| Australia A-Z | 0 | - | 4.54 | 50,003 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,929 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,971 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,161 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,264 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,099 |
| North American Sports Cities | 0 | - | 4.83 | 172,524 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,363 |
| Cities in European History #1 | 0 | - | 4.63 | 134,115 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,592 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,367 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,777 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,538 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,890 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,136 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,081 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,287 |
| ALL California Cities | 0 | - | 4.37 | 43,083 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,446 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,998 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,469 |
| Cities in Squares on a Map - Europe | 0 | - | 4.70 | 53,930 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,884 |
| Name a Valid World City | 0 | - | 4.83 | 71,350 |
| Cities by Former Name | 0 | - | 4.83 | 91,637 |
| Former Capitals | 0 | - | 4.88 | 71,493 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,439 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,713 |
| Capital Cities Chain | 0 | - | 4.83 | 82,841 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,509 |
| Coldest World Capitals | 0 | - | 4.95 | 133,608 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,310 |
| World Capitals by Map | 0 | - | 5.00 | 287,098 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,397 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,671 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,010 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 67,545 |
| Capitals Starting With H | 0 | - | 4.91 | 92,655 |
| Capitals Starting With K | 0 | - | 4.88 | 83,680 |
| Capitals Starting With L | 0 | - | 4.81 | 88,184 |
| Capitals Starting With M | 0 | - | 4.93 | 107,956 |
| Capitals Starting With P | 0 | - | 4.88 | 78,286 |
| Capitals Starting With R | 0 | - | 4.87 | 81,924 |
| Capitals Starting With S | 0 | - | 4.90 | 85,888 |
| Capitals Starting With T | 0 | - | 4.85 | 76,242 |
| Capitals Starting With W | 0 | - | 4.87 | 91,357 |
| Capitals Starting With A | 0 | - | 4.97 | 128,189 |
| Capitals Starting With B | 0 | - | 4.89 | 118,617 |
| Capitals Starting With D | 0 | - | 4.93 | 96,548 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,102 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,966 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,568 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 33,986 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,406 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.43 | 54,788 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,444 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,386 |
| India A-Z | 0 | - | 4.42 | 34,154 |
| Italy A-Z | 0 | - | 4.49 | 58,368 |
| China A-Z | 0 | - | 4.55 | 67,307 |
| Germany A-Z | 0 | - | 4.56 | 62,652 |
| Scotland A-Z | 0 | - | 4.73 | 41,315 |
