| Name a Valid European Capital | 0 | - | 4.95 | 150,717 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,617 |
| Name a City - European Countries | 0 | - | 4.92 | 64,288 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,159 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,759 |
| Which City in Europe? | 0 | - | 4.83 | 106,563 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,677 |
| Europe Capital to Country | 0 | - | 4.99 | 247,341 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,333 |
| European Capitals by Map | 0 | - | 4.99 | 136,008 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,087 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,539 |
| European Coastal Capitals | 0 | - | 4.95 | 89,669 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,590 |
| Official Cities in the UK | 0 | - | 4.89 | 280,259 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,347 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,654 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,718 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,280 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,107 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 144,716 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,886 |
| Random European City to Country | 0 | - | 4.69 | 116,242 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,959 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,155 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,561 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,011 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,134 |
| Word Scramble - European Capitals | 0 | - | 4.72 | 93,714 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,217 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,583 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,544 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,789 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,804 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,261 |
| Asia Capital to Country | 0 | - | 4.96 | 125,647 |
| African Capitals by Map | 0 | - | 4.99 | 132,081 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,903 |
| Asian Capitals by Map | 0 | - | 4.98 | 60,999 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,151 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,459 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,386 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,118 |
| European Cities by Clue | 0 | - | 4.70 | 88,773 |
| Which City in Canada? | 0 | - | 4.82 | 56,622 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,780 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,624 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,812 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,761 |
| British Places A-Z | 0 | - | 4.29 | 79,581 |
| Cities in European History #1 | 0 | - | 4.63 | 132,995 |
| European Cities by Map #2 | 0 | - | 4.48 | 47,178 |
| European Cities by Map #1 | 0 | - | 4.64 | 55,548 |
| Cities in Squares on a Map - Europe | 0 | - | 4.73 | 53,131 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,599 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,570 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,040 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,092 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,384 |
| Random Asian City to Country | 0 | - | 4.56 | 44,379 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,138 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,285 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,621 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,729 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,929 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,320 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,177 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,116 |
| Which City in Germany? | 0 | - | 4.50 | 134,902 |
| Which City in Italy? | 0 | - | 4.55 | 78,117 |
| Which City in France? | 0 | - | 4.64 | 72,359 |
| Which City in Spain? | 0 | - | 4.50 | 49,412 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,128 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,906 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,391 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,071 |
| Capitals of the Stans | 0 | - | 4.95 | 26,375 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,311 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,434 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,750 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 47,580 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 48,130 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,515 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,340 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,780 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,964 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,191 |
| Random European Capital to Country | 0 | - | 4.98 | 189,086 |
| Random European Country to Capital | 0 | - | 4.92 | 147,361 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,300 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,337 |
| Random African Capital to Country | 0 | - | 4.97 | 99,682 |
| Random African Country to Capital | 0 | - | 4.94 | 70,163 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,449 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,836 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,655 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,256 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,064 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,056 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,803 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,411 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,274 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,818 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,297 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,623 |
| 20 Northernmost English Cities | 0 | - | 4.49 | 23,773 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,271 |
| Random U.S. City to State | 0 | - | 4.45 | 75,227 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,586 |
| Name a City - Asian Countries | 0 | - | 4.41 | 19,360 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,132 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,836 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,580 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,534 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,501 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,261 |
| Countries by Capital City | 0 | - | 5.00 | 66,497 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,240 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,826 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,052 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,356 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,778 |
| Moved Capital Cities | 0 | - | 4.96 | 73,530 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,348 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,246 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 38,900 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,050 |
| Asian Cities by Wikipedia Descriptions | 0 | - | 4.57 | 31,159 |
| Which City in Africa? | 0 | - | 4.78 | 57,550 |
| Which City in Asia? | 0 | - | 4.51 | 51,085 |
| Which City in California? | 0 | - | 4.56 | 31,867 |
| Boroughs of London | 0 | - | 4.63 | 86,981 |
| Rome A-Z | 0 | - | 4.39 | 24,386 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,697 |
| London Geography | 0 | - | 4.47 | 59,431 |
| Paris A-Z | 0 | - | 4.16 | 17,362 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,385 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,206 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 152,820 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 41,628 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 126,526 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,702 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,483 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,682 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,044 |
| North American Sports Cities | 0 | - | 4.83 | 170,790 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,889 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 77,119 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,794 |
| 10 Westernmost Major Cities in Europe | 0 | - | 4.40 | 23,593 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,003 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,652 |
| Cities by Former Name | 0 | - | 4.84 | 90,888 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,647 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,199 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,816 |
| World Capitals by Map | 0 | - | 5.00 | 282,917 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,610 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,675 |
| Random Country to Capital | 0 | - | 4.98 | 910,769 |
| Capitals Starting With H | 0 | - | 4.90 | 89,862 |
| Capitals Starting With K | 0 | - | 4.85 | 75,564 |
| Capitals Starting With M | 0 | - | 4.93 | 105,874 |
| Capitals Starting With P | 0 | - | 4.88 | 77,074 |
| Capitals Starting With R | 0 | - | 4.87 | 80,864 |
| Capitals Starting With S | 0 | - | 4.89 | 84,684 |
| Capitals Starting With T | 0 | - | 4.84 | 75,196 |
| Capitals Starting With W | 0 | - | 4.89 | 90,512 |
| Capitals Starting With A | 0 | - | 4.97 | 126,384 |
| Capitals Starting With B | 0 | - | 4.89 | 117,143 |
| Capitals Starting With D | 0 | - | 4.93 | 95,234 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,573 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,013 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,312 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 158,174 |
| Which City in the Middle East? | 0 | - | 4.47 | 66,763 |
| Which City in Latin America? | 0 | - | 4.63 | 46,824 |
| Which City in Texas? | 0 | - | 4.45 | 24,962 |
| Which City in Australia? | 0 | - | 4.67 | 34,211 |
| Which City in Florida? | 0 | - | 4.61 | 10,921 |
| New York City A-Z | 0 | - | 4.18 | 32,176 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,782 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,379 |
| The Only European Country ... | 0 | - | 4.91 | 213,562 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,361 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,593 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,238 |
| Italy A-Z | 0 | - | 4.49 | 57,641 |
| Germany A-Z | 0 | - | 4.56 | 62,284 |
| Scotland A-Z | 0 | - | 4.73 | 41,018 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,117 |
| Counties of England | 0 | - | 4.97 | 788,526 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,063 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,324 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,849 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,716 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,919 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,770 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,079 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 94,676 |
