| New York City A-Z | 0 | - | 4.18 | 32,221 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,273 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,725 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,052 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,811 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,571 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,296 |
| Which City in California? | 0 | - | 4.56 | 31,943 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,254 |
| Name a City - European Countries | 0 | - | 4.92 | 64,685 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,212 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,769 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,711 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,943 |
| California A-Z | 0 | - | 4.49 | 28,732 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,853 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,204 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,336 |
| Europe Capital to Country | 0 | - | 4.99 | 248,466 |
| Asia Capital to Country | 0 | - | 4.96 | 125,987 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,847 |
| European Capitals by Map | 0 | - | 4.99 | 137,162 |
| African Capitals by Map | 0 | - | 4.99 | 132,529 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,397 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,532 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,457 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,836 |
| European Coastal Capitals | 0 | - | 4.95 | 89,970 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,284 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,673 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,383 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,500 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,893 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,445 |
| Official Cities in the UK | 0 | - | 4.89 | 281,365 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,269 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,715 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,847 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,589 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,392 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,363 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,832 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,707 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,901 |
| US States and State Capitals | 0 | - | 4.99 | 159,478 |
| Random U.S. States on a Map | 0 | - | 4.96 | 622,821 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,495 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,460 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 145,630 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,962 |
| World Capitals Quiz | 0 | - | 5.00 | 5,042,506 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,586 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,323 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,624 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,080 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,459 |
| Chicago A-Z | 0 | - | 4.25 | 15,469 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,807 |
| Capitals of the Stans | 0 | - | 4.95 | 26,525 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,715 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 173,242 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,081 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 149,960 |
| ALL California Cities | 0 | - | 4.37 | 42,897 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,685 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,233 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,890 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,574,790 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,730 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,857 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,200 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,210 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,388 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,735 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,077 |
| Random European Capital to Country | 0 | - | 4.98 | 189,546 |
| Random European Country to Capital | 0 | - | 4.92 | 147,709 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,548 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,641 |
| Random African Capital to Country | 0 | - | 4.97 | 99,887 |
| Random African Country to Capital | 0 | - | 4.94 | 70,371 |
| Melbourne Suburbs | 0 | - | 4.84 | 52,078 |
| Which City in New York State? | 0 | - | 4.60 | 15,895 |
| Which City in Europe? | 0 | - | 4.83 | 106,902 |
| Which City in Texas? | 0 | - | 4.45 | 25,004 |
| Which City in Florida? | 0 | - | 4.61 | 10,947 |
| European Capitals by Airport Code | 0 | - | 4.92 | 35,653 |
| British Places A-Z | 0 | - | 4.29 | 79,685 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,603 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,185 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,483 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,990 |
| Random U.S. City to State | 0 | - | 4.45 | 75,515 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,638 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,063 |
| Find the City #1 | 0 | - | 4.97 | 42,345 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,342 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,926 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,887 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,065 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,905 |
| Countries by Capital City | 0 | - | 5.00 | 67,151 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,569 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,107 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,150 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,567 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,816 |
| Moved Capital Cities | 0 | - | 4.96 | 73,770 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 74,443 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,624 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,941 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,680 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,563 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,543 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,090 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,823 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 38,946 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,092 |
| 20 Chinese Cities Everyone Should Know | 0 | - | 4.81 | 39,228 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,773 |
| Which City in Canada? | 0 | - | 4.82 | 56,798 |
| Boroughs of New York City | 0 | - | 4.47 | 84,240 |
| Washington D.C. Trivia | 0 | - | 4.44 | 38,874 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,719 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,529 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 153,190 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 42,022 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 126,825 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,840 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,182 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,683 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,298 |
| North American Sports Cities | 0 | - | 4.83 | 171,180 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,991 |
| Cities in European History #1 | 0 | - | 4.63 | 133,381 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,235 |
| European Cities by Map #1 | 0 | - | 4.64 | 55,607 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,825 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,042 |
| California Cities starting with SAN or SANTA | 0 | - | 4.33 | 18,461 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,213 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,924 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,338 |
| Name a Valid World City | 0 | - | 4.83 | 70,373 |
| Cities by Former Name | 0 | - | 4.84 | 91,147 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,145 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,360 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,072 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,269 |
| World Capitals by Map | 0 | - | 5.00 | 284,232 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,844 |
| Random Capital to Country | 0 | - | 4.99 | 2,581,532 |
| Random Country to Capital | 0 | - | 4.98 | 913,501 |
| Capitals Starting With H | 0 | - | 4.90 | 91,573 |
| Capitals Starting With K | 0 | - | 4.85 | 75,844 |
| Capitals Starting With L | 0 | - | 4.81 | 87,018 |
| Capitals Starting With M | 0 | - | 4.93 | 106,384 |
| Capitals Starting With P | 0 | - | 4.88 | 77,347 |
| Capitals Starting With R | 0 | - | 4.87 | 81,119 |
| Capitals Starting With S | 0 | - | 4.89 | 84,971 |
| Capitals Starting With T | 0 | - | 4.84 | 75,440 |
| Capitals Starting With W | 0 | - | 4.89 | 90,758 |
| Capitals Starting With A | 0 | - | 4.97 | 126,770 |
| Capitals Starting With B | 0 | - | 4.89 | 117,491 |
| Capitals Starting With D | 0 | - | 4.93 | 95,573 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,956 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,822 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,392 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,882 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,354 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,630 |
| Scotland A-Z | 0 | - | 4.73 | 41,102 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,083 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,934 |
| California... or Florida? | 0 | - | 4.60 | 51,100 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,766 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,409 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,348 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,202 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,174 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,931 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,539 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,717 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,387 |
| Westernmost Cities in the U.S. | 0 | - | 4.36 | 16,419 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,378 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,242 |
| South American Cities on the Map | 0 | - | 4.56 | 35,278 |
| North America Cities by Map | 0 | - | 4.41 | 47,668 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,403 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,558 |
| Random European City to Country | 0 | - | 4.69 | 116,815 |
| Random Asian City to Country | 0 | - | 4.56 | 44,419 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,920 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,235 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 47,820 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 48,495 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,464 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,581 |
| Every City in Arizona on a Map | 0 | - | 4.48 | 9,227 |
