| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,593 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,259 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,278 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,732 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,056 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,643 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,439 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,716 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,943 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,898 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,995 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,338 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,817 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,255 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,839 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,737 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,300 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,561 |
| Name a City - European Countries | 0 | - | 4.92 | 64,691 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,718 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 173,261 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,085 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 149,967 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,687 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,893 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,014 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,867 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,214 |
| Random U.S. City to State | 0 | - | 4.45 | 75,516 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,063 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,414 |
| Europe Capital to Country | 0 | - | 4.99 | 248,491 |
| Asia Capital to Country | 0 | - | 4.96 | 125,997 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,861 |
| European Capitals by Map | 0 | - | 4.99 | 137,195 |
| African Capitals by Map | 0 | - | 4.99 | 132,541 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,546 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,463 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,846 |
| European Coastal Capitals | 0 | - | 4.95 | 89,981 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,288 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,722 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,419 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,504 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,242 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 37,002 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,086 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,921 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,684 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,642 |
| Official Cities in the UK | 0 | - | 4.89 | 281,408 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,238 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,581 |
| World Capitals Quiz | 0 | - | 5.00 | 5,042,868 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,735 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,862 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,592 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,399 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,370 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,840 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,828 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,708 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,907 |
| Which City in Canada? | 0 | - | 4.82 | 56,802 |
| US States Quiz | 0 | - | 5.00 | 16,746,860 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,470 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,312 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,216 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 145,664 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,638 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,971 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,074 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,851 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,344 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,745 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,628 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,942 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,681 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,564 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,355 |
| Boroughs of New York City | 0 | - | 4.47 | 84,244 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,864 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,685 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,291 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,041 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,420 |
| States of Mexico | 0 | - | 4.95 | 174,071 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,762 |
| Capitals of the Stans | 0 | - | 4.95 | 26,541 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,608 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,546 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,668 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,903 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,048 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,837 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,713 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,247 |
| South American Cities on the Map | 0 | - | 4.56 | 35,281 |
| ALL California Cities | 0 | - | 4.37 | 42,899 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,240 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,574,946 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,203 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,213 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,283 |
| Random European Capital to Country | 0 | - | 4.98 | 189,560 |
| Random European Country to Capital | 0 | - | 4.92 | 147,716 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,551 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,645 |
| Random African Capital to Country | 0 | - | 4.97 | 99,891 |
| Random African Country to Capital | 0 | - | 4.94 | 70,384 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,956 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,824 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,392 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,883 |
| Melbourne Suburbs | 0 | - | 4.84 | 52,094 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 80,483 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,779 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,088 |
| Canada Country Quiz | 0 | - | 4.55 | 131,928 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,770 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 329,069 |
| Pixelated United States Map | 0 | - | 4.89 | 93,683 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,077 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,689 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,714 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,073 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,307 |
| U.S. States By Population | 0 | - | 4.92 | 152,621 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,695 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,040 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,785 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,889 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,104 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,558 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,194 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,355 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,932 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,891 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,078 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,921 |
| Countries by Capital City | 0 | - | 5.00 | 67,164 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,574 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,111 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,169 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,858 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,572 |
| Moved Capital Cities | 0 | - | 4.96 | 73,777 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,392 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,740 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,098 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 74,514 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 128,948 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,064 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,140 |
| Which City in Europe? | 0 | - | 4.83 | 106,908 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,661 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,909 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,255 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,888 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,077 |
| US States with an Empty Map | 0 | - | 5.00 | 620,338 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,078 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,896 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,289 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,882 |
| American TV Show Settings | 0 | - | 4.35 | 30,606 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,820 |
| Random Capital to Country | 0 | - | 4.99 | 2,581,654 |
| Random Country to Capital | 0 | - | 4.98 | 913,564 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,573 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,178 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.48 | 26,021 |
| Cities by Wikipedia Descriptions #1 | 0 | - | 4.52 | 55,283 |
| Cities by Wikipedia Descriptions #3 | 0 | - | 4.58 | 47,635 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,141 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,248 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,345 |
| O Canada Lyrics | 0 | - | 4.47 | 50,843 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,196 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,309 |
| North American Sports Cities | 0 | - | 4.83 | 171,184 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,995 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,154 |
| Cities in European History #1 | 0 | - | 4.63 | 133,397 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,236 |
| European Cities by Map #1 | 0 | - | 4.64 | 55,608 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,827 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,043 |
| California Cities starting with SAN or SANTA | 0 | - | 4.33 | 18,462 |
| Word Scramble - U.S. Cities | 0 | - | 4.13 | 19,675 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,930 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,342 |
| U.S. City Name Etymologies | 0 | - | 4.15 | 21,488 |
| Name a Valid World City | 0 | - | 4.83 | 70,381 |
| Cities by Former Name | 0 | - | 4.84 | 91,152 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,148 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,363 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,283 |
| World Capitals by Map | 0 | - | 5.00 | 284,272 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,853 |
