| New York City A-Z | 0 | - | 4.18 | 32,339 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,493 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,053 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,329 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,132 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,351 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,694,102 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,655 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,527 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,654 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,580 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,531 |
| Name a City - European Countries | 0 | - | 4.90 | 65,773 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,362 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,211 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,092 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,233 |
| Which City in California? | 0 | - | 4.56 | 32,096 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,076 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,544 |
| Europe Capital to Country | 0 | - | 4.99 | 251,142 |
| Asia Capital to Country | 0 | - | 4.96 | 126,969 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,374 |
| European Capitals by Map | 0 | - | 4.99 | 140,535 |
| African Capitals by Map | 0 | - | 4.99 | 138,117 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,004 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,404 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,746 |
| European Coastal Capitals | 0 | - | 4.95 | 90,922 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,748 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,176 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,845 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,970 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 145,000 |
| Official Cities in the UK | 0 | - | 4.89 | 284,884 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,830 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,037 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,501 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,236 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,914 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,115 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,882 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,804 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,273 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,631 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,101 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,362 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,287 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,634 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,470 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,340 |
| Which City in Texas? | 0 | - | 4.45 | 25,125 |
| Which City in Florida? | 0 | - | 4.61 | 11,005 |
| California A-Z | 0 | - | 4.49 | 28,813 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,514 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,736 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,752 |
| World Capitals Quiz | 0 | - | 5.00 | 5,088,458 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,334 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,590 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,951 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,894 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,297 |
| US States and State Capitals | 0 | - | 4.99 | 163,808 |
| Capitals of the Stans | 0 | - | 4.95 | 26,973 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,453 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,637 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,977 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,066 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,511 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,192 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,473 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,592,707 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,896 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,413 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,858 |
| Random European Capital to Country | 0 | - | 4.98 | 191,593 |
| Random European Country to Capital | 0 | - | 4.93 | 165,495 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,772 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,100 |
| Random African Capital to Country | 0 | - | 4.97 | 100,992 |
| Random African Country to Capital | 0 | - | 4.94 | 71,473 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,787 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,289 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,738 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,810 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,179 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,093 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,495 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,054 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,705 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,876 |
| Random U.S. City to State | 0 | - | 4.45 | 76,639 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,352 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,485 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,064 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,968 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,001 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,152 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,045 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,898 |
| Which City in Europe? | 0 | - | 4.83 | 107,653 |
| Chicago A-Z | 0 | - | 4.25 | 15,528 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,164 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,844 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,713 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,590 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,817 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,666 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,636 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,780 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,640 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,485 |
| Countries by Capital City | 0 | - | 5.00 | 68,775 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,456 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,893 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,488 |
| Moved Capital Cities | 0 | - | 4.96 | 74,407 |
| Random Capital to Country | 0 | - | 4.99 | 2,596,047 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,673 |
| Random Country to Capital | 0 | - | 4.98 | 923,789 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 114,182 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,085 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,820 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,733 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,636 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,253 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,906 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,286 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,514 |
| Which City in Canada? | 0 | - | 4.83 | 57,187 |
| Boroughs of New York City | 0 | - | 4.47 | 84,774 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,063 |
| Rome A-Z | 0 | - | 4.40 | 24,509 |
| Paris A-Z | 0 | - | 4.16 | 17,465 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,416 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,478 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,217 |
| Australia A-Z | 0 | - | 4.54 | 50,055 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,991 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,139 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,806 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,317 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,154 |
| North American Sports Cities | 0 | - | 4.83 | 172,742 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,434 |
| Cities in European History #1 | 0 | - | 4.63 | 134,287 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,654 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,395 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,817 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,603 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,915 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,173 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,473 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,708 |
| ALL California Cities | 0 | - | 4.37 | 43,136 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,475 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,346 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,658 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,168 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,236 |
| Name a Valid World City | 0 | - | 4.83 | 71,564 |
| Cities by Former Name | 0 | - | 4.83 | 91,794 |
| Former Capitals | 0 | - | 4.88 | 71,554 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,526 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,809 |
| Capital Cities Chain | 0 | - | 4.84 | 83,041 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,603 |
| Coldest World Capitals | 0 | - | 4.95 | 133,729 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,491 |
| World Capitals by Map | 0 | - | 5.00 | 287,857 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,555 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,832 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,184 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 68,084 |
| Capitals Starting With H | 0 | - | 4.91 | 92,801 |
| Capitals Starting With K | 0 | - | 4.88 | 83,855 |
| Capitals Starting With L | 0 | - | 4.81 | 88,317 |
| Capitals Starting With M | 0 | - | 4.93 | 108,188 |
| Capitals Starting With P | 0 | - | 4.88 | 78,429 |
| Capitals Starting With R | 0 | - | 4.87 | 82,046 |
| Capitals Starting With S | 0 | - | 4.90 | 86,031 |
| Capitals Starting With T | 0 | - | 4.84 | 76,376 |
| Capitals Starting With W | 0 | - | 4.87 | 91,433 |
| Capitals Starting With A | 0 | - | 4.97 | 128,392 |
| Capitals Starting With B | 0 | - | 4.88 | 118,806 |
| Capitals Starting With D | 0 | - | 4.93 | 96,704 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,128 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,006 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,603 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,011 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,418 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.43 | 54,823 |
| Countries with the Most Christians | 0 | - | 4.93 | 143,747 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,634 |
| India A-Z | 0 | - | 4.42 | 34,198 |
| Italy A-Z | 0 | - | 4.49 | 58,502 |
| China A-Z | 0 | - | 4.55 | 67,412 |
| Germany A-Z | 0 | - | 4.56 | 62,725 |
| Scotland A-Z | 0 | - | 4.73 | 41,356 |
