| New York City A-Z | 0 | - | 4.18 | 32,197 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 105,034 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,121 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,459 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,816 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,699 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,678,279 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,598 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,273 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,216 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,042 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,471 |
| Name a City - European Countries | 0 | - | 4.92 | 64,480 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,567 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,899 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 38,919 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,072 |
| Which City in California? | 0 | - | 4.56 | 31,908 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,401 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,909 |
| Europe Capital to Country | 0 | - | 4.99 | 248,039 |
| Asia Capital to Country | 0 | - | 4.96 | 125,808 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,553 |
| European Capitals by Map | 0 | - | 4.99 | 136,462 |
| African Capitals by Map | 0 | - | 4.99 | 132,253 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,251 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,266 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,680 |
| European Coastal Capitals | 0 | - | 4.95 | 89,830 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,208 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,974 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,964 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,442 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,422 |
| Official Cities in the UK | 0 | - | 4.89 | 280,731 |
| U.S. Cities A-Z by Clue | 0 | - | 4.36 | 39,680 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,708 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,123 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,225 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,489 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,234 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,488 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,019 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,702 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,455 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,174 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,215 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,747 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,737 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,518 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,807 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,264 |
| Which City in Texas? | 0 | - | 4.45 | 24,983 |
| Which City in Florida? | 0 | - | 4.61 | 10,935 |
| California A-Z | 0 | - | 4.49 | 28,713 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 77,703 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,275 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 145,082 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,836 |
| World Capitals Quiz | 0 | - | 5.00 | 5,033,673 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,435 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,580 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,990 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,569 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,287 |
| US States and State Capitals | 0 | - | 4.99 | 158,727 |
| Capitals of the Stans | 0 | - | 4.95 | 26,443 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,743 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,464 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 149,757 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,614 |
| European Cities with the Biggest Economies | 0 | - | 4.62 | 38,196 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,820 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,389 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,816 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,517 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,165 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,120 |
| Random European Capital to Country | 0 | - | 4.98 | 189,313 |
| Random European Country to Capital | 0 | - | 4.92 | 147,534 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,437 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,496 |
| Random African Capital to Country | 0 | - | 4.97 | 99,756 |
| Random African Country to Capital | 0 | - | 4.94 | 70,275 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,595 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,037 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,833 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,708 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,896 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,630 |
| European Capitals by Airport Code | 0 | - | 4.92 | 35,493 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,472 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,603 |
| Random U.S. City to State | 0 | - | 4.45 | 75,401 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,029 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,580 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,807 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,786 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,298 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,656 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,886 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,670 |
| Which City in Europe? | 0 | - | 4.83 | 106,746 |
| Chicago A-Z | 0 | - | 4.25 | 15,458 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,558 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,845 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,466 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,611 |
| Find the City #1 | 0 | - | 4.97 | 42,148 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,014 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,689 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,639 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,696 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,515 |
| Countries by Capital City | 0 | - | 5.00 | 66,736 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,377 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,944 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,438 |
| Moved Capital Cities | 0 | - | 4.96 | 73,622 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,685 |
| Random Country to Capital | 0 | - | 4.98 | 912,057 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,534 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,921 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,663 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,533 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,533 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,067 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,808 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,542 |
| Which City in Canada? | 0 | - | 4.82 | 56,717 |
| Boroughs of New York City | 0 | - | 4.47 | 84,130 |
| Washington D.C. Trivia | 0 | - | 4.44 | 38,760 |
| Rome A-Z | 0 | - | 4.39 | 24,408 |
| Paris A-Z | 0 | - | 4.16 | 17,382 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,451 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,714 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,973 |
| Australia A-Z | 0 | - | 4.54 | 49,792 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,623 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,147 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,208 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,947 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,897 |
| North American Sports Cities | 0 | - | 4.83 | 170,961 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,929 |
| Cities in European History #1 | 0 | - | 4.63 | 133,198 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,329 |
| European Cities by Map #2 | 0 | - | 4.48 | 47,203 |
| European Cities by Map #1 | 0 | - | 4.64 | 55,573 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,173 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,813 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,020 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,244 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,222 |
| ALL California Cities | 0 | - | 4.37 | 42,829 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 44,686 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,740 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,777 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,213 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,370 |
| Name a Valid World City | 0 | - | 4.83 | 70,190 |
| Cities by Former Name | 0 | - | 4.84 | 91,012 |
| Former Capitals | 0 | - | 4.88 | 71,155 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,707 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,262 |
| Capital Cities Chain | 0 | - | 4.84 | 81,954 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 245,876 |
| Coldest World Capitals | 0 | - | 4.95 | 133,067 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,008 |
| World Capitals by Map | 0 | - | 5.00 | 283,344 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,700 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,832 |
| All First Level Subdivision Capitals | 0 | - | 4.84 | 14,983 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,030 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 65,015 |
| Capitals Starting With H | 0 | - | 4.90 | 91,204 |
| Capitals Starting With K | 0 | - | 4.85 | 75,726 |
| Capitals Starting With L | 0 | - | 4.81 | 86,888 |
| Capitals Starting With M | 0 | - | 4.93 | 106,150 |
| Capitals Starting With P | 0 | - | 4.88 | 77,238 |
| Capitals Starting With R | 0 | - | 4.87 | 81,014 |
| Capitals Starting With S | 0 | - | 4.89 | 84,852 |
| Capitals Starting With T | 0 | - | 4.84 | 75,336 |
| Capitals Starting With W | 0 | - | 4.89 | 90,652 |
| Capitals Starting With A | 0 | - | 4.97 | 126,603 |
| Capitals Starting With B | 0 | - | 4.89 | 117,350 |
| Capitals Starting With D | 0 | - | 4.93 | 95,438 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,932 |
| U.S. State Capital Etymology | 0 | - | 4.50 | 36,798 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,347 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,857 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,341 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,592 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,533 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,972 |
| India A-Z | 0 | - | 4.42 | 33,927 |
| Italy A-Z | 0 | - | 4.49 | 57,751 |
| China A-Z | 0 | - | 4.55 | 66,749 |
| Germany A-Z | 0 | - | 4.56 | 62,332 |
| Scotland A-Z | 0 | - | 4.73 | 41,057 |
