| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,709 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,057 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,682 |
| Asia Capital to Country | 0 | - | 4.96 | 126,402 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,987 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,475 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,883 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,659 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,003 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,143 |
| Which City in Australia? | 0 | - | 4.67 | 34,366 |
| Capitals of the Stans | 0 | - | 4.95 | 26,702 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,985 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,021 |
| Which City in Germany? | 0 | - | 4.50 | 136,045 |
| Which City in Italy? | 0 | - | 4.67 | 89,931 |
| Which City in France? | 0 | - | 4.64 | 72,939 |
| Which City in Spain? | 0 | - | 4.50 | 49,865 |
| Random Asian City to Country | 0 | - | 4.56 | 44,456 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,411 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,426 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,599 |
| Name a City - European Countries | 0 | - | 4.90 | 65,134 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,950 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,611 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,435 |
| Which City in Europe? | 0 | - | 4.83 | 107,126 |
| Which City in the Middle East? | 0 | - | 4.47 | 67,050 |
| Which City in California? | 0 | - | 4.56 | 31,991 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,339 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,758 |
| Europe Capital to Country | 0 | - | 4.99 | 249,444 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,497 |
| European Capitals by Map | 0 | - | 4.99 | 138,412 |
| African Capitals by Map | 0 | - | 4.99 | 133,198 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,824 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,187 |
| European Coastal Capitals | 0 | - | 4.95 | 90,323 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,992 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,417 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,708 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,532 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,413 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,563 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,171 |
| Official Cities in the UK | 0 | - | 4.89 | 282,862 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,859 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,229 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,924 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,209 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,854 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,939 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,876 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,045 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,045 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,144 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,788 |
| Which City in Asia? | 0 | - | 4.52 | 51,305 |
| Which City in Canada? | 0 | - | 4.82 | 56,932 |
| Which City in Texas? | 0 | - | 4.45 | 25,051 |
| Which City in Florida? | 0 | - | 4.61 | 10,977 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,994 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 69,881 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,830 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,406 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,475 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,294 |
| World Capitals Quiz | 0 | - | 5.00 | 5,060,514 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,865 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,811 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,931 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 123,483 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,704 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,685,893 |
| Random European City to Country | 0 | - | 4.69 | 117,419 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,353 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,581,769 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,162 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,284 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,055 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,509 |
| Random European Capital to Country | 0 | - | 4.98 | 190,547 |
| Random European Country to Capital | 0 | - | 4.93 | 164,321 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,121 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,531 |
| Random African Capital to Country | 0 | - | 4.97 | 100,428 |
| Random African Country to Capital | 0 | - | 4.94 | 70,993 |
| Melbourne Suburbs | 0 | - | 4.85 | 52,698 |
| Asian Cities by Clue | 0 | - | 4.70 | 25,766 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,703 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,012 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,916 |
| Southeast Asian Cities by Map | 0 | - | 4.63 | 26,671 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,706 |
| Random U.S. City to State | 0 | - | 4.45 | 76,012 |
| Name a City - Asian Countries | 0 | - | 4.38 | 19,490 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,191 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,588 |
| World Capitals Closest to Jerusalem | 0 | - | 4.47 | 44,897 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,472 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,136 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,929 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,995 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,053 |
| European Cities by Clue | 0 | - | 4.70 | 88,993 |
| Hindu Countries | 0 | - | 4.86 | 49,968 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,209 |
| Countries that Beat China | 0 | - | 4.86 | 115,445 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,658 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,209 |
| Asia Map Quiz | 0 | - | 4.99 | 913,996 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,074 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,777 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,717 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,876 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,204 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,225 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,875 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,507 |
| Countries by Capital City | 0 | - | 5.00 | 67,837 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,921 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,422 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,910 |
| Moved Capital Cities | 0 | - | 4.96 | 74,008 |
| Random Capital to Country | 0 | - | 4.99 | 2,587,183 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,361 |
| Random Country to Capital | 0 | - | 4.98 | 917,427 |
| Asian Capital Superlatives - Top 2 | 0 | - | 4.37 | 28,054 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,551 |
| Which City in Africa? | 0 | - | 4.77 | 57,746 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,763 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,800 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,970 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,520 |
| Countries that Beat Egypt | 0 | - | 4.88 | 56,864 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,589 |
| Flags of Asia Quiz | 0 | - | 4.99 | 611,039 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,650 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,951 |
| North American Sports Cities | 0 | - | 4.83 | 171,710 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,201 |
| Cities in European History #1 | 0 | - | 4.63 | 133,751 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,494 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,298 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,689 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,395 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,099 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,734 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,444 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,627 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,202 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,617 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,660 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,467 |
| Tokyo City Trivia | 0 | - | 4.58 | 18,181 |
| Name a Valid World City | 0 | - | 4.83 | 70,883 |
| Cities by Former Name | 0 | - | 4.83 | 91,398 |
| Former Capitals | 0 | - | 4.88 | 71,354 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,578 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,303 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,545 |
| Capital Cities Chain | 0 | - | 4.84 | 82,428 |
| Coldest World Capitals | 0 | - | 4.95 | 133,426 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,823 |
| World Capitals by Map | 0 | - | 5.00 | 285,409 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,115 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,342 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,753 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,610 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 66,464 |
| Capitals Starting With H | 0 | - | 4.90 | 91,902 |
| Capitals Starting With K | 0 | - | 4.85 | 76,076 |
| Capitals Starting With L | 0 | - | 4.81 | 87,304 |
| Capitals Starting With M | 0 | - | 4.93 | 106,839 |
| Capitals Starting With P | 0 | - | 4.88 | 77,583 |
| Capitals Starting With R | 0 | - | 4.87 | 81,341 |
| Capitals Starting With S | 0 | - | 4.89 | 85,218 |
| Capitals Starting With T | 0 | - | 4.84 | 75,686 |
| Capitals Starting With W | 0 | - | 4.87 | 90,961 |
| Capitals Starting With A | 0 | - | 4.97 | 127,158 |
| Capitals Starting With B | 0 | - | 4.89 | 117,804 |
| Capitals Starting With D | 0 | - | 4.93 | 95,868 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,692 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,184 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,483 |
| US States and State Capitals | 0 | - | 4.99 | 161,085 |
| Which City in Latin America? | 0 | - | 4.63 | 46,973 |
| Hong Kong Facts | 0 | - | 4.49 | 29,245 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,141 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,712 |
| Countries of the Middle East | 0 | - | 4.96 | 200,653 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,601 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,225 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,477 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,930 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,775 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,567 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,045 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,250 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,776 |
