| South America Capitals Quiz | 0 | - | 5.00 | 480,046 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,108 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,001 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,357 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,846 |
| Europe Capital to Country | 0 | - | 4.99 | 249,340 |
| Asia Capital to Country | 0 | - | 4.96 | 126,354 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,432 |
| European Capitals by Map | 0 | - | 4.99 | 138,294 |
| African Capitals by Map | 0 | - | 4.99 | 133,093 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,928 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,776 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,142 |
| European Coastal Capitals | 0 | - | 4.95 | 90,285 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,434 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,805 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,293 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,681 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,785 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,160 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,831 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,887 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,625 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,029 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,988 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,108 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,962 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,041 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,369 |
| Capitals of the Stans | 0 | - | 4.95 | 26,683 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,324 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,419 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,908 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 81,002 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,567 |
| Name a City - European Countries | 0 | - | 4.91 | 65,091 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,413 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,471 |
| Random European Capital to Country | 0 | - | 4.98 | 190,475 |
| Random European Country to Capital | 0 | - | 4.93 | 163,958 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,031 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,156 |
| Random African Capital to Country | 0 | - | 4.97 | 100,354 |
| Random African Country to Capital | 0 | - | 4.94 | 70,954 |
| European Capitals by Airport Code | 0 | - | 4.93 | 35,971 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,685,244 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,655 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,554 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,937 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,585 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,864 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,390 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,291 |
| South American Cities on the Map | 0 | - | 4.56 | 35,352 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,709 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 66,303 |
| World Capitals Quiz | 0 | - | 5.00 | 5,058,289 |
| Official Cities in the UK | 0 | - | 4.89 | 282,712 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,238 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,047 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,814 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,993 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,736 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,630 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,762 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 69,847 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,686 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,580,941 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,276 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,787 |
| States of Brazil | 0 | - | 4.97 | 87,417 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,522 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,217 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 150,307 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,833 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,002 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,281 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,033 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,519 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,019 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,764 |
| Melbourne Suburbs | 0 | - | 4.84 | 52,628 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,593 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,222 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,475 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,711 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,172 |
| Random U.S. City to State | 0 | - | 4.45 | 75,961 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,176 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,555 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,813 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,174 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,198 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,823 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,426 |
| Countries by Capital City | 0 | - | 5.00 | 67,756 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,881 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,379 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,316 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,874 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,126 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,873 |
| Moved Capital Cities | 0 | - | 4.96 | 73,980 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,911 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,321 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 129,176 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,102 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,161 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,885 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,474 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,937 |
| Which City in Europe? | 0 | - | 4.83 | 107,107 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,392 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,471 |
| North American Sports Cities | 0 | - | 4.83 | 171,628 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,115 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,172 |
| Name a Valid World City | 0 | - | 4.83 | 70,826 |
| Cities by Former Name | 0 | - | 4.84 | 91,361 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,284 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,523 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,756 |
| World Capitals by Map | 0 | - | 5.00 | 285,281 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,084 |
| Random Capital to Country | 0 | - | 4.99 | 2,586,514 |
| Random Country to Capital | 0 | - | 4.98 | 916,925 |
| Capitals Starting With H | 0 | - | 4.90 | 91,868 |
| Capitals Starting With K | 0 | - | 4.85 | 76,045 |
| Capitals Starting With L | 0 | - | 4.81 | 87,275 |
| Capitals Starting With M | 0 | - | 4.93 | 106,790 |
| Capitals Starting With P | 0 | - | 4.88 | 77,557 |
| Capitals Starting With R | 0 | - | 4.87 | 81,321 |
| Capitals Starting With S | 0 | - | 4.89 | 85,189 |
| Capitals Starting With T | 0 | - | 4.84 | 75,662 |
| Capitals Starting With W | 0 | - | 4.87 | 90,941 |
| Capitals Starting With A | 0 | - | 4.97 | 127,111 |
| Capitals Starting With B | 0 | - | 4.89 | 117,767 |
| Capitals Starting With D | 0 | - | 4.93 | 95,834 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,611 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,215 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,041 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,771 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,786 |
| Cities in European History #1 | 0 | - | 4.63 | 133,697 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,288 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,682 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,855 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,361 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,092 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,366 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,598 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,548 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,712 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,399 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,377 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,013 |
| Which City in Canada? | 0 | - | 4.82 | 56,925 |
| Boroughs of New York City | 0 | - | 4.47 | 84,433 |
| Which South American Country? | 0 | - | 4.69 | 51,873 |
| Flags of North and South America | 0 | - | 4.99 | 371,346 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,810 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,518 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,546 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,475 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,377 |
| North America Cities by Map | 0 | - | 4.41 | 47,741 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,695 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,278 |
| ALL California Cities | 0 | - | 4.37 | 42,971 |
| Random European City to Country | 0 | - | 4.69 | 117,383 |
| Random Asian City to Country | 0 | - | 4.56 | 44,455 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,530 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,629 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,883 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,438 |
| Former Capitals | 0 | - | 4.88 | 71,343 |
| Capital Cities Chain | 0 | - | 4.84 | 82,388 |
| Coldest World Capitals | 0 | - | 4.95 | 133,395 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,300 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,567 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,675 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,177 |
| US States and State Capitals | 0 | - | 4.99 | 160,875 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,183 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,276 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,797 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,515 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,113 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,634 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,216 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,224 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,772 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,101 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,463 |
| Southeast Asian Cities by Map | 0 | - | 4.63 | 26,666 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,344 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,555 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 48,122 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 48,700 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,825 |
