| New York City A-Z | 0 | - | 4.18 | 32,350 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,628 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,103 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,472 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,226 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,400 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,695,031 |
| Africa Capitals Quiz | 0 | - | 4.99 | 741,352 |
| Asia Capitals Quiz | 0 | - | 4.98 | 696,373 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,682 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,663 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,533 |
| Name a City - European Countries | 0 | - | 4.90 | 65,861 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,432 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,231 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,103 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,245 |
| Which City in California? | 0 | - | 4.56 | 32,113 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,152 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,671 |
| Europe Capital to Country | 0 | - | 4.99 | 251,374 |
| Asia Capital to Country | 0 | - | 4.96 | 127,095 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,518 |
| European Capitals by Map | 0 | - | 4.99 | 141,100 |
| African Capitals by Map | 0 | - | 4.99 | 140,749 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,444 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,548 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,906 |
| European Coastal Capitals | 0 | - | 4.95 | 91,013 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,026 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,469 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,040 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,011 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 145,122 |
| Official Cities in the UK | 0 | - | 4.89 | 285,161 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,868 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,092 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,520 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,273 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,965 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,488 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,151 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,902 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,339 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,714 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,192 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,407 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,340 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,716 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,520 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,479 |
| Which City in Texas? | 0 | - | 4.45 | 25,133 |
| Which City in Florida? | 0 | - | 4.61 | 11,010 |
| California A-Z | 0 | - | 4.49 | 28,820 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,610 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,043 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,813 |
| World Capitals Quiz | 0 | - | 5.00 | 5,092,029 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,388 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,718 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,091 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,993 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,381 |
| US States and State Capitals | 0 | - | 4.99 | 164,250 |
| Capitals of the Stans | 0 | - | 4.95 | 27,029 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,483 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,650 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,540 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,108 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,532 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,227 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,477 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,594,153 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,987 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,431 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,903 |
| Random European Capital to Country | 0 | - | 4.98 | 191,737 |
| Random European Country to Capital | 0 | - | 4.93 | 165,600 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,841 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,197 |
| Random African Capital to Country | 0 | - | 4.97 | 101,090 |
| Random African Country to Capital | 0 | - | 4.94 | 71,553 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,807 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,303 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,885 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,821 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,205 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.83 | 56,130 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,563 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,163 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,975 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,885 |
| Random U.S. City to State | 0 | - | 4.45 | 76,681 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,373 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,769 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,091 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,982 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,083 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,199 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,154 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,919 |
| Which City in Europe? | 0 | - | 4.83 | 107,709 |
| Chicago A-Z | 0 | - | 4.25 | 15,534 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,227 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,861 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,860 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,596 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,831 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,812 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,733 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,926 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,822 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,661 |
| Countries by Capital City | 0 | - | 5.00 | 68,946 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,563 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,981 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,570 |
| Moved Capital Cities | 0 | - | 4.96 | 74,471 |
| Random Capital to Country | 0 | - | 4.99 | 2,597,044 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,711 |
| Random Country to Capital | 0 | - | 4.98 | 924,632 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 114,215 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,098 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,830 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,742 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,642 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,264 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,911 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,286 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,570 |
| Which City in Canada? | 0 | - | 4.83 | 57,231 |
| Boroughs of New York City | 0 | - | 4.47 | 84,829 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,085 |
| Rome A-Z | 0 | - | 4.40 | 24,519 |
| Paris A-Z | 0 | - | 4.16 | 17,472 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,476 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,535 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,300 |
| Australia A-Z | 0 | - | 4.54 | 50,077 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,018 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,215 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,091 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,335 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,170 |
| North American Sports Cities | 0 | - | 4.83 | 172,848 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,461 |
| Cities in European History #1 | 0 | - | 4.63 | 134,372 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,670 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,411 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,835 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,633 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,926 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,179 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,620 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,890 |
| ALL California Cities | 0 | - | 4.37 | 43,169 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,481 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,421 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,732 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,274 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,344 |
| Name a Valid World City | 0 | - | 4.84 | 71,644 |
| Cities by Former Name | 0 | - | 4.83 | 91,852 |
| Former Capitals | 0 | - | 4.88 | 71,581 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,568 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,848 |
| Capital Cities Chain | 0 | - | 4.84 | 83,112 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,647 |
| Coldest World Capitals | 0 | - | 4.95 | 134,021 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,565 |
| World Capitals by Map | 0 | - | 5.00 | 288,290 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,634 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,904 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,259 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 68,311 |
| Capitals Starting With H | 0 | - | 4.91 | 92,859 |
| Capitals Starting With K | 0 | - | 4.88 | 83,911 |
| Capitals Starting With L | 0 | - | 4.81 | 88,380 |
| Capitals Starting With M | 0 | - | 4.93 | 108,314 |
| Capitals Starting With P | 0 | - | 4.88 | 78,495 |
| Capitals Starting With R | 0 | - | 4.87 | 82,096 |
| Capitals Starting With S | 0 | - | 4.90 | 86,084 |
| Capitals Starting With T | 0 | - | 4.85 | 76,426 |
| Capitals Starting With W | 0 | - | 4.87 | 91,470 |
| Capitals Starting With A | 0 | - | 4.97 | 128,473 |
| Capitals Starting With B | 0 | - | 4.89 | 118,884 |
| Capitals Starting With D | 0 | - | 4.93 | 96,768 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,142 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,024 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,618 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,016 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,421 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.43 | 54,835 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,162 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,748 |
| India A-Z | 0 | - | 4.42 | 34,216 |
| Italy A-Z | 0 | - | 4.49 | 58,558 |
| China A-Z | 0 | - | 4.55 | 67,465 |
| Germany A-Z | 0 | - | 4.56 | 62,757 |
| Scotland A-Z | 0 | - | 4.73 | 41,384 |
