| Which City in Texas? | 0 | - | 4.45 | 24,531 |
| Which City in California? | 0 | - | 4.55 | 31,387 |
| Which City in Florida? | 0 | - | 4.61 | 10,730 |
| Random State Capital to U.S. State | 0 | - | 4.81 | 83,924 |
| Most-Visited U.S. Cities | 0 | - | 4.88 | 85,685 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 76,411 |
| Name a Valid European Capital | 0 | - | 4.95 | 144,814 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,631,671 |
| Random European Capital to Country | 0 | - | 4.97 | 183,471 |
| Random European Country to Capital | 0 | - | 4.93 | 143,393 |
| Random Asian Country to Capital | 0 | - | 4.92 | 91,985 |
| Random Asian Capital to Country | 0 | - | 4.97 | 97,220 |
| Random African Capital to Country | 0 | - | 4.97 | 87,345 |
| Random African Country to Capital | 0 | - | 4.94 | 67,466 |
| Random U.S. State Capitals on a Map | 0 | - | 4.91 | 99,625 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 100,231 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 68,781 |
| Name a City - European Countries | 0 | - | 4.93 | 60,543 |
| Africa Capitals Quiz | 0 | - | 4.99 | 699,550 |
| Asia Capitals Quiz | 0 | - | 4.98 | 657,574 |
| Random African Capitals on a Map | 0 | - | 4.95 | 52,572 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 49,099 |
| Random European Capitals on a Map | 0 | - | 4.98 | 129,965 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 91,835 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.89 | 46,684 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 104,293 |
| Most-Visited Cities in Europe | 0 | - | 4.89 | 68,323 |
| Europe Capital to Country | 0 | - | 4.99 | 238,930 |
| Asia Capital to Country | 0 | - | 4.96 | 122,338 |
| EU Capitals with No Hints | 0 | - | 4.96 | 138,306 |
| European Capitals by Map | 0 | - | 4.99 | 126,013 |
| African Capitals by Map | 0 | - | 4.99 | 125,576 |
| South America Capitals Quiz | 0 | - | 5.00 | 461,144 |
| Asian Capitals by Map | 0 | - | 4.98 | 56,781 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.87 | 87,350 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 80,178 |
| European Coastal Capitals | 0 | - | 4.95 | 85,756 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.90 | 50,597 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 254,173 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 212,949 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 79,778 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 137,057 |
| 20 Chinese Cities Everyone Should Know | 0 | - | 4.81 | 37,341 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 91,210 |
| Official Cities in the UK | 0 | - | 4.89 | 267,858 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 33,177 |
| North America Capitals Quiz | 0 | - | 4.99 | 206,114 |
| African Capitals - Map Quiz | 0 | - | 4.95 | 58,568 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 90,629 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 114,120 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 84,023 |
| European Capitals Furthest from the Sea | 0 | - | 4.90 | 71,237 |
| Asian Capitals - Map Quiz | 0 | - | 4.94 | 57,780 |
| European Capitals Ending in N | 0 | - | 4.92 | 78,640 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 145,501 |
| Random U.S. States on a Map | 0 | - | 4.96 | 595,886 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.41 | 35,866 |
| British Cities with the Most Tourists | 0 | - | 4.81 | 64,829 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 133,644 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.91 | 22,969 |
| World Capitals Quiz | 0 | - | 5.00 | 4,858,693 |
| Capitals of Canadian Provinces | 0 | - | 4.87 | 84,758 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 78,590 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.77 | 53,515 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 126,584 |
| Capitals of the Stans | 0 | - | 4.96 | 24,938 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 184,748 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 161,687 |
| U.S. City Nicknames | 0 | - | 4.25 | 102,373 |
| U.S Cities by African-American Population | 0 | - | 4.41 | 93,327 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 146,278 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 39,269 |
| Cities on Route 66 on a Map | 0 | - | 4.51 | 31,744 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,507,992 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 124,911 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 39,986 |
| Most Guessed European Capitals | 0 | - | 4.89 | 99,793 |
| Word Scramble - European Capitals | 0 | - | 4.75 | 91,742 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 81,061 |
| Name a Valid Asian Capital | 0 | - | 4.52 | 59,407 |
| Which City in Europe? | 0 | - | 4.82 | 104,214 |
| New York City A-Z | 0 | - | 4.18 | 31,598 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 485,118 |
| European Capitals by Airport Code | 0 | - | 4.90 | 32,049 |
| Word Scramble - U.K. Cities | 0 | - | 4.56 | 64,367 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 47,507 |
| Global Cities on a World Map | 0 | - | 4.95 | 104,929 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.29 | 32,986 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.54 | 135,252 |
| Random U.S. City to State | 0 | - | 4.44 | 71,603 |
| Cities in the Dallas Metro Area on a Map | 0 | - | 4.59 | 7,704 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.41 | 39,046 |
| Find the City #1 | 0 | - | 4.97 | 39,584 |
| Northernmost Capital Cities | 0 | - | 4.98 | 103,667 |
| Most Remote Capital Cities | 0 | - | 4.91 | 49,492 |
| Capital Cities: Ports and Saints | 0 | - | 4.95 | 40,938 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 101,971 |
| Same Letter Country and Capital | 0 | - | 4.99 | 140,090 |
| Countries by Capital City | 0 | - | 5.00 | 60,584 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 72,815 |
| Capitals of the Largest Countries by Area | 0 | - | 4.95 | 110,820 |
| World Capitals by Proximity | 0 | - | 4.90 | 316,426 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 80,087 |
| Moved Capital Cities | 0 | - | 4.95 | 71,240 |
| World Capitals with a Unique First Letter | 0 | - | 4.81 | 61,060 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 111,605 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 61,198 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,336 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.56 | 35,143 |
| US State Capitals - One Minute Sprint | 0 | - | 4.02 | 176,844 |
| Which City in Canada? | 0 | - | 4.81 | 55,363 |
| Boroughs of New York City | 0 | - | 4.46 | 81,777 |
| Washington D.C. Trivia | 0 | - | 4.41 | 32,556 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,250 |
| Chicago A-Z | 0 | - | 4.25 | 15,207 |
| Dallas City Trivia | 0 | - | 4.46 | 6,579 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 199,877 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 91,769 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 123,515 |
| Summer Olympic City Bids | 0 | - | 4.92 | 39,938 |
| Important Cities in European History | 0 | - | 4.56 | 114,205 |
| European Cities by Map #2 | 0 | - | 4.48 | 46,619 |
| European Cities by Map #1 | 0 | - | 4.68 | 54,800 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,375 |
| Mediterranean Cities by Map | 0 | - | 4.50 | 50,540 |
| Important Places in U.S. History | 0 | - | 4.25 | 37,116 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.87 | 98,444 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 50,622 |
| Random Cities Near Paris on a Map | 0 | - | 4.54 | 38,082 |
| Cities by Former Name | 0 | - | 4.84 | 88,554 |
| Capitals in their Native Languages | 0 | - | 4.94 | 130,654 |
| Nearest Capital City #1 | 0 | - | 4.83 | 55,341 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.36 | 243,422 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 51,917 |
| World Capitals by Map | 0 | - | 5.00 | 269,698 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.96 | 54,871 |
| Random Capital to Country | 0 | - | 4.99 | 2,516,592 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 196,882 |
| Random Country to Capital | 0 | - | 4.98 | 874,694 |
| World Capitals By Letter - H | 0 | - | 4.86 | 75,953 |
| World Capitals By Letter - K | 0 | - | 4.82 | 70,526 |
| World Capitals By Letter - M | 0 | - | 4.92 | 96,280 |
| World Capitals By Letter - P | 0 | - | 4.85 | 71,912 |
| World Capitals By Letter - R | 0 | - | 4.85 | 76,548 |
| World Capitals By Letter - S | 0 | - | 4.89 | 79,400 |
| World Capitals By Letter - T | 0 | - | 4.82 | 70,687 |
| World Capitals By Letter - W | 0 | - | 4.88 | 86,528 |
| World Capitals By Letter - A | 0 | - | 4.96 | 112,442 |
| World Capitals By Letter - B | 0 | - | 4.85 | 103,576 |
| World Capitals By Letter - D | 0 | - | 4.92 | 84,288 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.57 | 33,908 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.61 | 50,139 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,076 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.62 | 33,391 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,039 |
| Which City in Germany? | 0 | - | 4.49 | 130,974 |
| Which City in Italy? | 0 | - | 4.54 | 76,721 |
| Which City in France? | 0 | - | 4.62 | 70,926 |
| Which City in Spain? | 0 | - | 4.50 | 48,626 |
| Which City in Australia? | 0 | - | 4.64 | 33,545 |
| Fifty US States in One Minute | 0 | - | 4.55 | 3,448,148 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 210,660 |
| Category Elimination - U.S. States #2 | 0 | - | 4.81 | 126,227 |
| Countries of Europe by Population | 0 | - | 4.98 | 167,472 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 222,364 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 174,998 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 171,659 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 99,869 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 105,464 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.90 | 93,474 |
| Westernmost Cities in the U.S. | 0 | - | 4.36 | 16,179 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 45,634 |
| U.S. Cities Chain | 0 | - | 4.21 | 33,440 |
| South American Cities on the Map | 0 | - | 4.57 | 34,590 |
| North America Cities by Map | 0 | - | 4.41 | 46,931 |
| 10 Westernmost Major Cities in Europe | 0 | - | 4.41 | 23,016 |
| Most Guessed Cities by Country #3 | 0 | - | 4.88 | 41,901 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 203,918 |
| ALL California Cities | 0 | - | 4.35 | 41,661 |
| Random European City to Country | 0 | - | 4.74 | 113,337 |
| Random Asian City to Country | 0 | - | 4.55 | 43,938 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 125,940 |
| European Cities with the Biggest Economies | 0 | - | 4.58 | 37,303 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 45,589 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.64 | 44,691 |
| German Cities with the Most Tourists | 0 | - | 4.63 | 31,746 |
| Name a City - U.S. States | 0 | - | 4.39 | 25,926 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 110,344 |
| Divided World City Name Puzzle #2 | 0 | - | 4.82 | 34,340 |
| Every City in Arizona on a Map | 0 | - | 4.45 | 8,464 |
| Every City in Colorado on a Map | 0 | - | 4.46 | 12,090 |
| Every City in Washington State on a Map | 0 | - | 4.51 | 12,305 |
| Every City in Alabama on a Map | 0 | - | 4.69 | 7,516 |
| Every City in Michigan on a Map | 0 | - | 4.44 | 8,425 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 83,632 |
| Cities By Wikipedia Word Clouds A-Z | 0 | - | 4.81 | 31,379 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.41 | 12,138 |
| Richest Metro Areas in the U.S. | 0 | - | 4.40 | 38,234 |
| Former Capitals Quiz | 0 | - | 4.87 | 69,704 |
| Capital Cities Chain | 0 | - | 4.86 | 78,061 |
