| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.92 | 709,046 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,340,506 |
| Biggest Cities in Texas | 0 | - | 4.20 | 95,200 |
| Biggest Cities in Washington State | 0 | - | 4.33 | 24,939 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,463 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,832 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 288,186 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.55 | 89,954 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,836 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,190 |
| Biggest Cities by Language | 0 | - | 4.95 | 194,243 |
| Biggest Nordic Cities | 0 | - | 4.35 | 56,531 |
| Biggest Mediterranean Cities | 0 | - | 4.73 | 69,362 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,903 |
| Jewish Cities Quiz | 0 | - | 4.31 | 55,812 |
| Biggest Cities in Japan | 0 | - | 4.68 | 66,655 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,002 |
| Biggest Cities in Russia | 0 | - | 4.48 | 68,855 |
| Fastest Growing U.S. Cities | 0 | - | 4.26 | 58,185 |
| Countries that Start with A | 0 | - | 4.96 | 1,632,228 |
| Countries that Start with B | 0 | - | 4.94 | 1,769,817 |
| Countries that Start with C | 0 | - | 4.95 | 1,402,338 |
| Countries that Start with D | 0 | - | 4.96 | 464,748 |
| Countries that Start with E | 0 | - | 4.93 | 1,034,355 |
| Countries that Start with G | 0 | - | 4.95 | 1,131,924 |
| Countries that Start with H | 0 | - | 4.93 | 391,604 |
| Countries that Start with I | 0 | - | 4.90 | 978,147 |
| Countries that Start with J | 0 | - | 4.96 | 394,941 |
| Countries that Start with K | 0 | - | 4.94 | 573,244 |
| Countries that Start with L | 0 | - | 4.98 | 814,876 |
| Countries that Start with N | 0 | - | 4.90 | 836,091 |
| Countries that Start with P | 0 | - | 4.94 | 924,057 |
| Countries that Start with S | 0 | - | 4.96 | 1,358,714 |
| Countries that Start with T | 0 | - | 4.89 | 760,245 |
| Countries that Start with U | 0 | - | 4.97 | 685,909 |
| Countries that Start with V | 0 | - | 4.97 | 456,997 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 41,754 |
| Countries that Start with M | 0 | - | 4.95 | 1,062,137 |
| Biggest Cities in Poland | 0 | - | 4.73 | 40,245 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.38 | 10,692 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 87,111 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 121,058 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,826 |
| Biggest Cities Starting With H | 0 | - | 4.48 | 75,795 |
| Biggest Cities Starting With K | 0 | - | 4.35 | 63,486 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 85,095 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 98,865 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,667 |
| Biggest Cities Starting With S | 0 | - | 4.34 | 92,863 |
| Biggest Cities Starting With T | 0 | - | 4.25 | 93,396 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 21,070 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.34 | 75,244 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.32 | 62,593 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.23 | 70,576 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 76,636 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.12 | 61,466 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.07 | 57,317 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.10 | 17,998 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.82 | 52,824 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.18 | 55,557 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.21 | 62,453 |
| Biggest U.S. Cities A-Z | 0 | - | 4.54 | 109,216 |
| Biggest World Cities A-Z | 0 | - | 4.39 | 167,128 |
| Biggest Cities in France | 0 | - | 4.52 | 161,773 |
| Biggest Cities in Spain | 0 | - | 4.65 | 133,061 |
| Biggest Cities in Italy | 0 | - | 4.63 | 189,307 |
| Biggest Cities in California | 0 | - | 4.30 | 119,997 |
| Biggest Cities in Florida | 0 | - | 4.13 | 61,513 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 572,141 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,911 |
| Biggest Cities in Africa Quiz | 0 | - | 4.88 | 84,196 |
| Biggest Cities in Ohio | 0 | - | 4.33 | 41,353 |
| Biggest Cities in The Netherlands | 0 | - | 4.42 | 36,234 |
| Biggest Cities in New York State | 0 | - | 4.20 | 51,275 |
| Biggest Cities in Europe | 0 | - | 4.63 | 404,102 |
| Biggest Cities in Indiana | 0 | - | 4.22 | 17,547 |
| Biggest Cities in Tennessee | 0 | - | 4.20 | 17,279 |
| Biggest Cities in Canada | 0 | - | 4.57 | 108,886 |
| Biggest Cities in Sweden | 0 | - | 4.71 | 24,641 |
| Countries with the Highest Population Density | 0 | - | 4.88 | 131,461 |
| Biggest Cities in China | 0 | - | 4.42 | 118,405 |
| Biggest Cities in Pennsylvania | 0 | - | 4.10 | 39,099 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 126,730 |
| Biggest Cities in Germany | 0 | - | 4.94 | 226,885 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.40 | 48,469 |
| Second Biggest Cities Quiz | 0 | - | 4.19 | 36,617 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 135,015 |
| Biggest City in Every Country | 0 | - | 4.97 | 66,884 |
| Biggest Cities in Louisiana | 0 | - | 3.98 | 16,365 |
| Biggest Cities in Arizona | 0 | - | 4.24 | 24,816 |
| Biggest Cities in Virginia | 0 | - | 4.16 | 20,348 |
| Biggest Cities in Illinois | 0 | - | 4.30 | 21,508 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,829 |
| Biggest Cities in Wisconsin | 0 | - | 4.35 | 20,613 |
| Biggest Cities in Massachusetts | 0 | - | 4.27 | 20,200 |
| Biggest Cities in Missouri | 0 | - | 4.18 | 14,219 |
| Biggest Cities in Oregon | 0 | - | 4.02 | 16,719 |
| Biggest Cities in Alaska | 0 | - | 4.39 | 16,851 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,818 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,234 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,819 |
| Biggest Cities in Switzerland | 0 | - | 4.56 | 38,340 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 110,019 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,536 |
| Biggest Cities in India | 0 | - | 4.52 | 54,938 |
| Biggest Cities in Asia | 0 | - | 4.87 | 86,037 |
| Biggest City by Island | 0 | - | 4.49 | 42,266 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,181 |
| Biggest Cities in History | 0 | - | 4.47 | 70,694 |
| Biggest Cities by Trait #1 | 0 | - | 4.44 | 39,888 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.29 | 37,899 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,423 |
| Five Biggest Cities by Country | 0 | - | 4.76 | 122,564 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,270 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,243 |
| Biggest Coastal City by Country | 0 | - | 4.56 | 24,121 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.57 | 58,708 |
| Biggest Cities in Portugal | 0 | - | 4.35 | 15,982 |
| Most Populous World Capitals | 0 | - | 4.89 | 128,269 |
| Biggest City by Region | 0 | - | 4.50 | 29,191 |
| Most Populous 2nd Cities | 0 | - | 4.53 | 39,294 |
| Biggest City by Region #2 | 0 | - | 4.44 | 19,886 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.40 | 25,470 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,257 |
| Capitals of Most Populated Countries | 0 | - | 4.97 | 107,732 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 113,401 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,850 |
| U.S. Cities by Hispanic Population | 0 | - | 4.22 | 22,896 |
| Biggest Cities by Latitude | 0 | - | 4.73 | 24,117 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,287 |
| Largest World Cities With Four Letters | 0 | - | 4.41 | 39,419 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,710 |
| Biggest Axis-Controlled Cities | 0 | - | 4.24 | 31,535 |
| Biggest Two-Word Cities | 0 | - | 4.71 | 34,007 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,347 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.73 | 55,578 |
| Cities of Ireland | 0 | - | 4.40 | 35,704 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,879 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 146,348 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,203 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,397 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 118,364 |
| Cities of China (With Some Help) | 0 | - | 4.77 | 23,590 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 34,006 |
| Biggest Cities with Exceptions | 0 | - | 4.87 | 42,792 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,800 |
| Countries with Megacities | 0 | - | 4.99 | 176,169 |
| Countries of Europe by Population | 0 | - | 4.98 | 108,534 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,451 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,198 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 123,528 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,475 |
| Biggest Cities in the UK | 0 | - | 4.42 | 79,861 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 81,837 |
| Biggest World Cities in 1850 | 0 | - | 4.52 | 47,620 |
| Megacities on a World Map | 0 | - | 4.97 | 199,806 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 174,695 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,876 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,519 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,719 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.81 | 38,725 |
| Ten Northernmost Megacities | 0 | - | 4.41 | 44,089 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.93 | 74,639 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 312,902 |
| Countries With More than 50 Million People | 0 | - | 4.98 | 125,063 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 23,295 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 50,083 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 176,448 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.57 | 34,733 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.44 | 35,955 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 434,811 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,243 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 52,077 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 54,005 |
| All Cities in China with Population of 1 Million | 0 | - | 4.66 | 27,666 |
| Northernmost Major City by Country | 0 | - | 4.50 | 28,140 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.93 | 21,112 |
| All Cities in India with Population of 1 Million | 0 | - | 4.80 | 32,853 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,335 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,470 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 56,247 |
| U.S. States by Second Most Populous City | 0 | - | 4.40 | 36,577 |
| Largest World Capitals with Exceptions | 0 | - | 4.66 | 37,803 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.71 | 62,114 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,321 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,391 |
| Biggest Cities Near a Border | 0 | - | 4.11 | 14,597 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,751 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,517 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 261,806 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.93 | 79,718 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,882 |
| Biggest "Saint" Cities - United States | 0 | - | 4.38 | 30,595 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 112,409 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.33 | 22,177 |
| Ten Southernmost Megacities | 0 | - | 4.68 | 32,437 |
| Biggest Cities by Trait #2 | 0 | - | 4.31 | 12,312 |
| Flags to Largest Cities | 0 | - | 4.55 | 23,087 |
| 500 Biggest US Cities | 0 | - | 4.88 | 76,103 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,465 |
