| Most Guessed U.S. Cities | 0 | - | 4.90 | 93,353 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 62,907 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 75,607 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 64,827 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 62,447 |
| New York City A-Z | 0 | - | 4.18 | 30,724 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,551,103 |
| Africa Capitals Quiz | 0 | - | 4.99 | 651,394 |
| Asia Capitals Quiz | 0 | - | 4.98 | 608,462 |
| Most Guessed European Capitals | 0 | - | 4.89 | 97,204 |
| Name a World Capital A-Z | 0 | - | 4.99 | 143,707 |
| Los Angeles A-Z | 0 | - | 4.16 | 8,900 |
| Name a City - European Countries | 0 | - | 4.95 | 53,934 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 81,119 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.88 | 44,937 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.49 | 32,169 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 96,259 |
| Most-Visited Cities in Europe | 0 | - | 4.92 | 59,214 |
| Europe Capital to Country | 0 | - | 4.99 | 224,021 |
| Asia Capital to Country | 0 | - | 4.96 | 107,423 |
| EU Capitals with No Hints | 0 | - | 4.96 | 127,471 |
| European Capitals by Map | 0 | - | 4.99 | 98,417 |
| African Capitals by Map | 0 | - | 4.99 | 114,269 |
| Asian Capitals by Map | 0 | - | 4.98 | 49,279 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.89 | 80,745 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.95 | 74,097 |
| European Coastal Capitals | 0 | - | 4.96 | 79,095 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.90 | 47,600 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 234,760 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.90 | 197,894 |
| Capitals of Mediterranean Countries | 0 | - | 4.96 | 76,852 |
| U.S. State Capitals Map Quiz | 0 | - | 4.92 | 128,052 |
| Official Cities in the UK | 0 | - | 4.87 | 237,707 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.57 | 131,849 |
| Divided World City Name Puzzle #1 | 0 | - | 4.90 | 41,136 |
| Random Cities Near Chicago on a Map | 0 | - | 4.51 | 31,751 |
| Every City in Arizona on a Map | 0 | - | 4.94 | 4,260 |
| South America Capitals Quiz | 0 | - | 5.00 | 434,399 |
| North America Capitals Quiz | 0 | - | 4.99 | 191,050 |
| African Capitals - Map Quiz | 0 | - | 4.95 | 53,637 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 85,658 |
| European Capitals - Map Quiz | 0 | - | 4.98 | 107,550 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 79,290 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 67,821 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 89,591 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 52,797 |
| European Capitals Ending in N | 0 | - | 4.92 | 74,979 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 76,640 |
| Name a Valid U.S. State Capital | 0 | - | 4.82 | 50,308 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.51 | 30,685 |
| Which City in Texas? | 0 | - | 4.43 | 23,709 |
| Which City in California? | 0 | - | 4.54 | 30,361 |
| Which City in Florida? | 0 | - | 4.60 | 10,354 |
| California A-Z | 0 | - | 4.48 | 27,968 |
| European Cities A-Z | 0 | - | 4.25 | 70,962 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 57,509 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 98,651 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.96 | 12,648 |
| World Capitals Quiz | 0 | - | 5.00 | 4,586,612 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 80,151 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.89 | 117,132 |
| Name a Valid European Capital | 0 | - | 4.94 | 128,596 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.87 | 69,631 |
| Random U.S. State Capitals on a Map | 0 | - | 4.94 | 93,477 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 124,863 |
| Capitals of the Stans | 0 | - | 4.95 | 21,997 |
| U.S Cities by African-American Population | 0 | - | 4.41 | 83,712 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 139,380 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.72 | 37,116 |
| European Cities with the Biggest Economies | 0 | - | 4.58 | 35,825 |
| Divided World City Name Puzzle #2 | 0 | - | 4.92 | 30,513 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,411,671 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 117,958 |
| European Capitals with the Least Sunshine | 0 | - | 4.48 | 48,115 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 77,571 |
| Random European Capital to Country | 0 | - | 4.97 | 155,306 |
| Random European Country to Capital | 0 | - | 4.93 | 137,215 |
| Random Asian Country to Capital | 0 | - | 4.93 | 87,090 |
| Random Asian Capital to Country | 0 | - | 4.97 | 91,109 |
| Random African Capital to Country | 0 | - | 4.97 | 81,243 |
| Random African Country to Capital | 0 | - | 4.94 | 63,425 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.69 | 32,164 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 44,417 |
| Melbourne Suburbs | 0 | - | 4.81 | 39,187 |
| Hong Kong A-Z | 0 | - | 4.52 | 13,824 |
| Rust Belt Cities Map Quiz | 0 | - | 4.56 | 32,677 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.84 | 51,672 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 175,436 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 152,176 |
| U.S. Cities A-Z | 0 | - | 4.21 | 30,848 |
| Random U.S. City to State | 0 | - | 4.44 | 66,981 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 38,538 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 63,992 |
| Random African Capitals on a Map | 0 | - | 4.95 | 49,440 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 46,185 |
| Random European Capitals on a Map | 0 | - | 4.98 | 123,477 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.57 | 40,859 |
| Which City in Europe? | 0 | - | 4.85 | 99,004 |
| Chicago A-Z | 0 | - | 4.20 | 10,354 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.39 | 35,044 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.37 | 40,398 |
| Global Cities on a World Map | 0 | - | 4.92 | 93,055 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.28 | 32,174 |
| Northernmost Capital Cities | 0 | - | 4.98 | 96,214 |
| Most Remote Capital Cities | 0 | - | 4.90 | 45,019 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,753 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 93,474 |
| Same Letter Country and Capital | 0 | - | 4.99 | 130,506 |
| Countries by Capital City | 0 | - | 4.99 | 51,766 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 67,361 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 106,309 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 74,620 |
| Moved Capital Cities | 0 | - | 4.96 | 68,041 |
| Random Capital to Country | 0 | - | 4.99 | 2,400,510 |
| Random Country to Capital | 0 | - | 4.98 | 816,692 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 107,747 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 37,497 |
| Snowiest U.S. State Capitals | 0 | - | 4.43 | 27,426 |
| Hottest U.S. State Capitals | 0 | - | 4.82 | 25,535 |
| Coldest U.S. State Capitals | 0 | - | 4.58 | 19,194 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 83,434 |
| Which City in Canada? | 0 | - | 4.90 | 46,050 |
| Boroughs of New York City | 0 | - | 4.45 | 78,111 |
| Rome A-Z | 0 | - | 4.36 | 15,092 |
| Paris A-Z | 0 | - | 4.15 | 16,499 |
| Countries Closest to United States A-Z | 0 | - | 4.84 | 108,774 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 101,240 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 179,638 |
| Australia A-Z | 0 | - | 4.48 | 38,883 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 89,425 |
| European Capitals by Airport Code | 0 | - | 4.89 | 26,762 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 118,264 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,897 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,586 |
| Summer Olympic City Bids | 0 | - | 4.93 | 37,707 |
| Important Cities in European History | 0 | - | 4.55 | 110,926 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.91 | 90,664 |
| European Cities by Map #2 | 0 | - | 4.48 | 44,807 |
| European Cities by Map #1 | 0 | - | 4.66 | 52,275 |
| Asian Cities by Map #1 | 0 | - | 4.49 | 39,170 |
| Mediterranean Cities by Map | 0 | - | 4.49 | 49,569 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 196,149 |
| ALL California Cities | 0 | - | 4.36 | 39,769 |
| Important Places in U.S. History | 0 | - | 4.23 | 36,567 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 119,905 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.86 | 92,804 |
| Cities in Squares on a Map - Europe | 0 | - | 4.75 | 47,082 |
| Five Most Guessed Cities by Continent | 0 | - | 4.97 | 105,937 |
| Cities on Route 66 on a Map | 0 | - | 4.52 | 29,775 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.39 | 37,631 |
| Cities by Former Name | 0 | - | 4.84 | 84,368 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.40 | 11,726 |
| Richest Metro Areas in the U.S. | 0 | - | 4.35 | 27,342 |
| Former Capitals Quiz | 0 | - | 4.82 | 58,721 |
| Capitals in their Native Languages | 0 | - | 4.94 | 128,218 |
| Nearest Capital City #1 | 0 | - | 4.82 | 52,992 |
| Capital Cities Chain | 0 | - | 4.87 | 72,685 |
| World Capitals by Proximity | 0 | - | 4.89 | 304,175 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.37 | 236,108 |
| Coldest World Capitals | 0 | - | 4.96 | 128,836 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 49,385 |
| World Capitals by Map | 0 | - | 5.00 | 248,474 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 51,143 |
| Capital Cities with Spanish Names | 0 | - | 4.85 | 63,731 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 80,327 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 44,501 |
| World Capitals By Letter - H | 0 | - | 4.85 | 72,232 |
| World Capitals By Letter - K | 0 | - | 4.82 | 66,894 |
| World Capitals By Letter - M | 0 | - | 4.89 | 87,297 |
| World Capitals By Letter - P | 0 | - | 4.85 | 68,131 |
| World Capitals By Letter - R | 0 | - | 4.88 | 73,193 |
| World Capitals By Letter - S | 0 | - | 4.89 | 75,590 |
| World Capitals By Letter - T | 0 | - | 4.82 | 67,358 |
| World Capitals By Letter - W | 0 | - | 4.88 | 83,214 |
| World Capitals By Letter - A | 0 | - | 4.96 | 106,525 |
| World Capitals By Letter - B | 0 | - | 4.84 | 98,266 |
| World Capitals By Letter - D | 0 | - | 4.91 | 80,332 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 34,867 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.65 | 32,558 |
| U.S. Suburbs Quiz | 0 | - | 4.45 | 17,676 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.42 | 51,719 |
| Countries with the Most Christians | 0 | - | 4.93 | 124,764 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 74,968 |
| Italy A-Z | 0 | - | 4.45 | 41,251 |
| China A-Z | 0 | - | 4.58 | 61,457 |
| Germany A-Z | 0 | - | 4.55 | 58,642 |
| Japan A-Z | 0 | - | 4.50 | 39,212 |
| Scotland A-Z | 0 | - | 4.75 | 38,359 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 210,092 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 164,526 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 160,949 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 92,922 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 91,074 |
| Biggest World Cities A-Z | 0 | - | 4.58 | 206,395 |
| U.S. City Nicknames | 0 | - | 4.23 | 100,332 |
| Westernmost Cities in the U.S. | 0 | - | 4.37 | 15,777 |
| UK Cities and Towns by Map | 0 | - | 4.54 | 44,305 |
| South American Cities on the Map | 0 | - | 4.55 | 33,512 |
| Random European City to Country | 0 | - | 4.71 | 108,598 |
| Random Asian City to Country | 0 | - | 4.53 | 42,832 |
