| Which City in California? | 0 | - | 4.56 | 31,872 |
| Which City in Texas? | 0 | - | 4.45 | 24,966 |
| Which City in Florida? | 0 | - | 4.61 | 10,922 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,154 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,242 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,675 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,769 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,980 |
| Random European Capital to Country | 0 | - | 4.98 | 189,135 |
| Random European Country to Capital | 0 | - | 4.92 | 147,386 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,325 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,360 |
| Random African Capital to Country | 0 | - | 4.97 | 99,701 |
| Random African Country to Capital | 0 | - | 4.94 | 70,189 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,144 |
| New York City A-Z | 0 | - | 4.18 | 32,186 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,838 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,017 |
| Name a City - European Countries | 0 | - | 4.92 | 64,332 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,882 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,433 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,233 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,592 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,784 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,485 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,864 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,305 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,739 |
| Europe Capital to Country | 0 | - | 4.99 | 247,425 |
| Asia Capital to Country | 0 | - | 4.96 | 125,690 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,386 |
| European Capitals by Map | 0 | - | 4.99 | 136,121 |
| African Capitals by Map | 0 | - | 4.99 | 132,102 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,052 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,057 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,124 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,570 |
| European Coastal Capitals | 0 | - | 4.95 | 89,703 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,163 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,612 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,663 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,402 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,292 |
| 20 Chinese Cities Everyone Should Know | 0 | - | 4.81 | 38,971 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,311 |
| Official Cities in the UK | 0 | - | 4.89 | 280,371 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,202 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,742 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,611 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,372 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,068 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,130 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,675 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,408 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,736 |
| US States and State Capitals | 0 | - | 4.99 | 158,327 |
| Boroughs of New York City | 0 | - | 4.47 | 84,074 |
| Random U.S. States on a Map | 0 | - | 4.96 | 621,150 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,455 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,146 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,810 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,758 |
| World Capitals Quiz | 0 | - | 5.00 | 5,028,926 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,356 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,639 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,320 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,656 |
| Capitals of the Stans | 0 | - | 4.95 | 26,386 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,336 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,247 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,454 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,700 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 149,658 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,578 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,784 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,177 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,382 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,788 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,170 |
| Word Scramble - European Capitals | 0 | - | 4.72 | 93,743 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,988 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,214 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,706 |
| Which City in Europe? | 0 | - | 4.83 | 106,589 |
| New York City Trivia #1 | 0 | - | 4.08 | 35,614 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,557 |
| European Capitals by Airport Code | 0 | - | 4.92 | 35,390 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,809 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,534 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,680 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,453 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,637 |
| Random U.S. City to State | 0 | - | 4.45 | 75,272 |
| Name a City - U.S. States | 0 | - | 4.41 | 26,529 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 39,998 |
| Find the City #1 | 0 | - | 4.97 | 42,069 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,167 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,880 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,611 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,561 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,547 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,333 |
| Countries by Capital City | 0 | - | 5.00 | 66,556 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,280 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,864 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,201 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,381 |
| Moved Capital Cities | 0 | - | 4.96 | 73,552 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,496 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,189 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,897 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,648 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,512 |
| US State Capitals - One Minute Sprint | 0 | - | 4.06 | 182,532 |
| Which City in Canada? | 0 | - | 4.82 | 56,637 |
| Washington D.C. Trivia | 0 | - | 4.44 | 38,562 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,462 |
| Chicago A-Z | 0 | - | 4.25 | 15,453 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,580 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,588 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,070 |
| North American Sports Cities | 0 | - | 4.83 | 170,838 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,903 |
| Cities in European History #1 | 0 | - | 4.63 | 133,055 |
| European Cities by Map #2 | 0 | - | 4.48 | 47,186 |
| European Cities by Map #1 | 0 | - | 4.64 | 55,554 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,797 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,009 |
| Cities in U.S. History #1 | 0 | - | 4.25 | 41,606 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,681 |
| Cities in Squares on a Map - Europe | 0 | - | 4.73 | 53,153 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,298 |
| Name a Valid World City | 0 | - | 4.83 | 70,070 |
| Cities by Former Name | 0 | - | 4.84 | 90,924 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,670 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,219 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 245,787 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,867 |
| World Capitals by Map | 0 | - | 5.00 | 283,040 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,627 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,252 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,189 |
| Random Country to Capital | 0 | - | 4.98 | 911,167 |
| Capitals Starting With H | 0 | - | 4.90 | 90,518 |
| Capitals Starting With K | 0 | - | 4.85 | 75,638 |
| Capitals Starting With L | 0 | - | 4.81 | 86,774 |
| Capitals Starting With M | 0 | - | 4.93 | 105,974 |
| Capitals Starting With P | 0 | - | 4.88 | 77,139 |
| Capitals Starting With R | 0 | - | 4.87 | 80,926 |
| Capitals Starting With S | 0 | - | 4.89 | 84,756 |
| Capitals Starting With T | 0 | - | 4.84 | 75,252 |
| Capitals Starting With W | 0 | - | 4.89 | 90,572 |
| Capitals Starting With A | 0 | - | 4.97 | 126,479 |
| Capitals Starting With B | 0 | - | 4.89 | 117,224 |
| Capitals Starting With D | 0 | - | 4.93 | 95,325 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,578 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,018 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,916 |
| U.S. State Capital Etymology | 0 | - | 4.50 | 36,782 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,837 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,336 |
| Which City in Germany? | 0 | - | 4.50 | 134,948 |
| Which City in Italy? | 0 | - | 4.55 | 78,139 |
| Which City in France? | 0 | - | 4.64 | 72,377 |
| Which City in Spain? | 0 | - | 4.50 | 49,425 |
| Which City in Australia? | 0 | - | 4.67 | 34,215 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,517,448 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,344 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,399 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,907 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,828 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,911 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,774 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,945 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,795 |
| U.S. Cities A-Z by Clue | 0 | - | 4.36 | 39,649 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,290 |
| Westernmost Cities in the U.S. | 0 | - | 4.36 | 16,397 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,314 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,124 |
| South American Cities on the Map | 0 | - | 4.57 | 35,238 |
| North America Cities by Map | 0 | - | 4.41 | 47,603 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,151 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,007 |
| ALL California Cities | 0 | - | 4.36 | 42,807 |
| Random European City to Country | 0 | - | 4.69 | 116,280 |
| Random Asian City to Country | 0 | - | 4.56 | 44,385 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,616 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,167 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,077 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 47,605 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 48,203 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,300 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,454 |
| Every City in Arizona on a Map | 0 | - | 4.47 | 9,169 |
| Every City in Colorado on a Map | 0 | - | 4.48 | 13,007 |
| Every City in Washington State on a Map | 0 | - | 4.54 | 13,592 |
| Every City in Alabama on a Map | 0 | - | 4.71 | 8,346 |
| Every City in Michigan on a Map | 0 | - | 4.48 | 9,257 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 86,610 |
