| New York City A-Z | 0 | - | 4.18 | 32,236 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,420 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,394 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,996 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,226 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,901 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,682,770 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,513 |
| Asia Capitals Quiz | 0 | - | 4.98 | 688,911 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,346 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,444 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,490 |
| Name a City - European Countries | 0 | - | 4.91 | 64,814 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,820 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,986 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 38,964 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,110 |
| Which City in California? | 0 | - | 4.56 | 31,965 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,067 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,421 |
| Europe Capital to Country | 0 | - | 4.99 | 248,846 |
| Asia Capital to Country | 0 | - | 4.96 | 126,150 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,104 |
| European Capitals by Map | 0 | - | 4.99 | 137,671 |
| African Capitals by Map | 0 | - | 4.99 | 132,800 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,707 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,576 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,947 |
| European Coastal Capitals | 0 | - | 4.95 | 90,091 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,349 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,181 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,742 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,581 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,055 |
| Official Cities in the UK | 0 | - | 4.89 | 282,047 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,742 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,069 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,329 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,307 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,663 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,434 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,108 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,141 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,965 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,687 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,561 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,486 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 81,914 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,890 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,810 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,979 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,599 |
| Which City in Texas? | 0 | - | 4.45 | 25,030 |
| Which City in Florida? | 0 | - | 4.61 | 10,954 |
| California A-Z | 0 | - | 4.49 | 28,744 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,324 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,619 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,081 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,086 |
| World Capitals Quiz | 0 | - | 5.00 | 5,049,676 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,718 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,082 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,615 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,928 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,604 |
| US States and State Capitals | 0 | - | 4.99 | 160,160 |
| Capitals of the Stans | 0 | - | 4.95 | 26,596 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,141 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,513 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 150,105 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,750 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,287 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,939 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,424 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,514 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,884 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,233 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,285 |
| Random European Capital to Country | 0 | - | 4.98 | 189,745 |
| Random European Country to Capital | 0 | - | 4.92 | 147,840 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,661 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,767 |
| Random African Capital to Country | 0 | - | 4.97 | 100,009 |
| Random African Country to Capital | 0 | - | 4.94 | 70,540 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,648 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,119 |
| Melbourne Suburbs | 0 | - | 4.84 | 52,302 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,741 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,964 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,758 |
| European Capitals by Airport Code | 0 | - | 4.93 | 35,782 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,001 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 173,824 |
| Random U.S. City to State | 0 | - | 4.45 | 75,648 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,103 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,677 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,905 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,845 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,490 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,795 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,199 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,726 |
| Which City in Europe? | 0 | - | 4.83 | 106,988 |
| Chicago A-Z | 0 | - | 4.25 | 15,484 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,640 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,439 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,501 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,672 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,556 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,037 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,036 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,290 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,145 |
| Countries by Capital City | 0 | - | 5.00 | 67,443 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,724 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,232 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,684 |
| Moved Capital Cities | 0 | - | 4.96 | 73,871 |
| Random Capital to Country | 0 | - | 4.99 | 2,584,000 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,096 |
| Random Country to Capital | 0 | - | 4.98 | 914,846 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,714 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,966 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,711 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,593 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,561 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,119 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,838 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,221 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,888 |
| Which City in Canada? | 0 | - | 4.82 | 56,846 |
| Boroughs of New York City | 0 | - | 4.47 | 84,321 |
| Washington D.C. Trivia | 0 | - | 4.45 | 38,926 |
| Rome A-Z | 0 | - | 4.39 | 24,438 |
| Paris A-Z | 0 | - | 4.16 | 17,415 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,775 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 107,935 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,331 |
| Australia A-Z | 0 | - | 4.54 | 49,872 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,746 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,411 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,226 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,052 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,975 |
| North American Sports Cities | 0 | - | 4.83 | 171,360 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,032 |
| Cities in European History #1 | 0 | - | 4.63 | 133,533 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,424 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,257 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,638 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,311 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,836 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,066 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,530 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,868 |
| ALL California Cities | 0 | - | 4.37 | 42,929 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,315 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,084 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,021 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,442 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,534 |
| Name a Valid World City | 0 | - | 4.83 | 70,581 |
| Cities by Former Name | 0 | - | 4.84 | 91,245 |
| Former Capitals | 0 | - | 4.88 | 71,274 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,206 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,441 |
| Capital Cities Chain | 0 | - | 4.84 | 82,245 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,155 |
| Coldest World Capitals | 0 | - | 4.95 | 133,207 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,477 |
| World Capitals by Map | 0 | - | 5.00 | 284,740 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,957 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,120 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,362 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 65,825 |
| Capitals Starting With H | 0 | - | 4.90 | 91,703 |
| Capitals Starting With K | 0 | - | 4.85 | 75,925 |
| Capitals Starting With L | 0 | - | 4.81 | 87,129 |
| Capitals Starting With M | 0 | - | 4.93 | 106,565 |
| Capitals Starting With P | 0 | - | 4.88 | 77,431 |
| Capitals Starting With R | 0 | - | 4.87 | 81,217 |
| Capitals Starting With S | 0 | - | 4.89 | 85,058 |
| Capitals Starting With T | 0 | - | 4.84 | 75,544 |
| Capitals Starting With W | 0 | - | 4.87 | 90,841 |
| Capitals Starting With A | 0 | - | 4.97 | 126,903 |
| Capitals Starting With B | 0 | - | 4.89 | 117,600 |
| Capitals Starting With D | 0 | - | 4.93 | 95,682 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,978 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,849 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,428 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,902 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,366 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,658 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,259 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,480 |
| India A-Z | 0 | - | 4.42 | 34,017 |
| Italy A-Z | 0 | - | 4.49 | 57,997 |
| China A-Z | 0 | - | 4.55 | 66,960 |
| Germany A-Z | 0 | - | 4.56 | 62,457 |
| Scotland A-Z | 0 | - | 4.73 | 41,141 |
