| Quiz | Points | Best | Rating | Takes |
|---|
| Biggest Cities in the United States | 0 | - | 4.93 | 710,201 |
| U.S. State Capitals Quiz | 0 | - | 4.99 | 1,342,898 |
| Chinese Zodiac Quiz | 0 | - | 4.74 | 111,885 |
| Biggest Cities in Texas | 0 | - | 4.21 | 95,306 |
| Biggest Cities in Washington State | 0 | - | 4.33 | 24,971 |
| Biggest Urban Areas in the UK | 0 | - | 4.34 | 156,924 |
| Biggest Cities in New Jersey | 0 | - | 3.97 | 22,163 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 288,584 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.55 | 90,091 |
| Biggest English-Speaking Cities | 0 | - | 4.39 | 127,905 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.84 | 99,289 |
| Biggest Cities by Language | 0 | - | 4.95 | 194,469 |
| Biggest Nordic Cities | 0 | - | 4.35 | 56,579 |
| Biggest Mediterranean Cities | 0 | - | 4.65 | 69,436 |
| Biggest Cities in Japan | 0 | - | 4.68 | 66,775 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,126 |
| Biggest Cities in Russia | 0 | - | 4.49 | 68,929 |
| Biggest Cities in Brazil | 0 | - | 4.55 | 41,854 |
| Biggest Cities in Poland | 0 | - | 4.72 | 40,335 |
| Countries that Border China | 0 | - | 4.97 | 212,526 |
| Biggest Cities in Colombia Quiz | 0 | - | 4.38 | 10,733 |
| Biggest Cities Starting With A | 0 | - | 4.55 | 87,228 |
| Biggest Cities Starting With B | 0 | - | 4.38 | 121,172 |
| Biggest Cities Starting With D | 0 | - | 4.46 | 84,912 |
| Biggest Cities Starting With H | 0 | - | 4.48 | 75,884 |
| Biggest Cities Starting With L | 0 | - | 4.42 | 85,213 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 99,006 |
| Biggest Cities Starting With P | 0 | - | 4.44 | 87,774 |
| Biggest Cities in Mexico | 0 | - | 4.52 | 21,110 |
| Biggest U.S. Cities Starting with A | 0 | - | 4.34 | 75,331 |
| Biggest U.S. Cities Starting with B | 0 | - | 4.32 | 62,658 |
| Biggest U.S. Cities Starting with C | 0 | - | 4.23 | 70,648 |
| Biggest U.S. Cities Starting with D | 0 | - | 4.10 | 76,700 |
| Biggest U.S. Cities Starting with M | 0 | - | 4.12 | 61,512 |
| Biggest U.S. Cities Starting with N | 0 | - | 4.07 | 57,369 |
| Biggest U.S. Cities Starting with O | 0 | - | 4.10 | 18,034 |
| Biggest U.S. Cities Starting with P | 0 | - | 3.82 | 52,858 |
| Biggest U.S. Cities Starting with L | 0 | - | 4.18 | 55,606 |
| Biggest U.S. Cities Starting with S | 0 | - | 4.21 | 62,510 |
| Biggest U.S. Cities A-Z | 0 | - | 4.55 | 109,387 |
| Biggest World Cities A-Z | 0 | - | 4.39 | 167,332 |
| Biggest Cities in France | 0 | - | 4.53 | 162,042 |
| Biggest Cities in Spain | 0 | - | 4.66 | 133,290 |
| Biggest Cities in Italy | 0 | - | 4.64 | 189,626 |
| Biggest Cities in California | 0 | - | 4.30 | 120,081 |
| Biggest Cities in Florida | 0 | - | 4.13 | 61,554 |
| Biggest Cities in the World Quiz | 0 | - | 4.84 | 573,202 |
| Biggest Cities in New Zealand | 0 | - | 4.56 | 19,939 |
| Biggest Cities in Africa Quiz | 0 | - | 4.89 | 84,276 |
| Biggest Cities in Ohio | 0 | - | 4.33 | 41,390 |
| Biggest Cities in The Netherlands | 0 | - | 4.42 | 36,681 |
| Biggest Cities in Michigan | 0 | - | 3.99 | 29,914 |
| Biggest Cities in New York State | 0 | - | 4.20 | 51,303 |
| Biggest Cities in Europe | 0 | - | 4.64 | 404,652 |
| Biggest Cities in Indiana | 0 | - | 4.22 | 17,578 |
| Biggest Cities in Tennessee | 0 | - | 4.20 | 17,302 |
| Biggest Cities in Canada | 0 | - | 4.57 | 109,007 |
| Biggest Cities in Sweden | 0 | - | 4.71 | 24,716 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,411 |
| Asia Capitals Quiz | 0 | - | 4.97 | 503,432 |
| Asian Cities by Clue | 0 | - | 4.66 | 22,511 |
| Biggest Cities in Pennsylvania | 0 | - | 4.10 | 39,128 |
| Biggest Cities in Germany | 0 | - | 4.94 | 227,284 |
| Biggest Cities in Latin America Quiz | 0 | - | 4.40 | 48,519 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 135,176 |
| Biggest City in Every Country | 0 | - | 4.97 | 67,001 |
| Biggest Cities in Louisiana | 0 | - | 3.98 | 16,379 |
| Biggest Cities in Colorado | 0 | - | 3.97 | 27,144 |
| Biggest Cities in Arizona | 0 | - | 4.24 | 24,851 |
| Biggest Cities in Virginia | 0 | - | 4.16 | 20,370 |
| Biggest Cities in Illinois | 0 | - | 4.30 | 21,564 |
| Biggest Cities in North Carolina | 0 | - | 4.48 | 25,865 |
| Biggest Cities in Wisconsin | 0 | - | 4.35 | 20,632 |
| Biggest Cities in Georgia | 0 | - | 3.72 | 19,422 |
| Biggest Cities in Massachusetts | 0 | - | 4.27 | 20,225 |
| Biggest Cities in Missouri | 0 | - | 4.18 | 14,231 |
| Biggest Cities in Oregon | 0 | - | 4.02 | 16,732 |
| Biggest Cities in Alaska | 0 | - | 4.39 | 16,873 |
| Dynasties of China | 0 | - | 4.71 | 21,050 |
| Biggest City by Time Zone | 0 | - | 4.74 | 49,853 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.42 | 78,281 |
| Biggest English Cities by Century | 0 | - | 4.92 | 85,973 |
| Biggest Cities in Switzerland | 0 | - | 4.56 | 38,409 |
| Biggest European Cities by Letter | 0 | - | 4.43 | 110,125 |
| Biggest Cities in India | 0 | - | 4.52 | 55,009 |
| Biggest Cities in Asia | 0 | - | 4.87 | 86,138 |
| Japanese Prefectures | 0 | - | 4.97 | 78,829 |
| China Country Quiz | 0 | - | 4.37 | 91,265 |
| Japan Country Quiz | 0 | - | 4.91 | 103,699 |
| Asia Capital to Country | 0 | - | 4.96 | 96,156 |
| Biggest Cities in History | 0 | - | 4.47 | 70,810 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 58,498 |
| Five Biggest Cities by Country | 0 | - | 4.74 | 122,720 |
| China Cities Map Quiz | 0 | - | 4.86 | 78,913 |
| Provinces of China Map Quiz | 0 | - | 4.95 | 75,447 |
| Provinces of China | 0 | - | 4.97 | 118,756 |
| South Korea Country Quiz | 0 | - | 4.54 | 62,624 |
| Hong Kong Facts | 0 | - | 4.37 | 20,859 |
| 100 Biggest US Cities in 1900 | 0 | - | 4.42 | 56,336 |
| Top 10 World Cities Through History | 0 | - | 4.41 | 63,307 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,108 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.53 | 58,879 |
| Biggest Cities in Portugal | 0 | - | 4.35 | 16,021 |
| Countries Closest to Japan | 0 | - | 4.95 | 102,347 |
| Most Populous World Capitals | 0 | - | 4.89 | 128,366 |
| Canadian Metro Areas over 100,000 People | 0 | - | 4.40 | 25,511 |
| Biggest European Cities by Century | 0 | - | 4.96 | 105,392 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.93 | 72,171 |
| U.S. Cities by Hispanic Population | 0 | - | 4.22 | 22,915 |
| Overseas Chinese Population | 0 | - | 4.57 | 35,863 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,394 |
| China A-Z | 0 | - | 4.65 | 51,809 |
| Japan A-Z | 0 | - | 4.41 | 33,217 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.64 | 58,781 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 58,440 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.74 | 55,676 |
| Cities of Ireland | 0 | - | 4.40 | 35,750 |
| Largest Cities in Alexander's Empire | 0 | - | 4.46 | 29,913 |
| Five Most Populated Cities by Continent | 0 | - | 4.95 | 146,566 |
| Biggest Cities in the World - Extreme | 0 | - | 4.97 | 73,312 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.78 | 46,444 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 118,498 |
| Cities of China (With Some Help) | 0 | - | 4.77 | 23,676 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.90 | 34,082 |
| Biggest Cities with Exceptions | 0 | - | 4.88 | 42,857 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 127,628 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.89 | 32,519 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 40,379 |
| Biggest Cities in the UK | 0 | - | 4.42 | 80,011 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 81,956 |
| Asian Cities by Map #1 | 0 | - | 4.49 | 29,931 |
| Megacities on a World Map | 0 | - | 4.97 | 200,150 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 175,044 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.78 | 48,927 |
| Asian Capitals by Map | 0 | - | 4.98 | 30,324 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 95,679 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.85 | 73,822 |
| Biggest Cities once in the Ottoman Empire | 0 | - | 4.78 | 38,786 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.94 | 74,751 |
| Cities of the Pearl River Delta | 0 | - | 4.60 | 12,602 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 313,642 |
| Biggest U.S. Cities Within 200 Kilometers | 0 | - | 4.37 | 23,325 |
| U.S. Cities With Population > 1 Million | 0 | - | 4.44 | 50,169 |
| Biggest U.S. Cities Within 100 Kilometers | 0 | - | 4.57 | 34,775 |
| World Capitals Closest to Bangkok | 0 | - | 4.94 | 34,425 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 435,557 |
| Megacities on an Empty Map | 0 | - | 4.96 | 77,366 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.86 | 41,489 |
| Middle East Capital Cities Quiz | 0 | - | 4.95 | 63,126 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 52,180 |
| Southeast Asian Cities by Map | 0 | - | 4.55 | 17,695 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,635 |
| All 3M Cities on the World Map | 0 | - | 4.94 | 54,153 |
| All Cities in China with Population of 1 Million | 0 | - | 4.67 | 30,075 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.93 | 21,269 |
| All Cities in India with Population of 1 Million | 0 | - | 4.79 | 32,968 |
| Asian Coastal Capitals | 0 | - | 4.55 | 17,752 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.93 | 55,458 |
| Most Visited Countries by Chinese | 0 | - | 4.24 | 26,209 |
| Most-Visited Countries by Japanese | 0 | - | 4.94 | 44,976 |
| Top 10 Most Populous U.S. State Capitals | 0 | - | 4.46 | 42,589 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 49,704 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.91 | 76,174 |
| Two Largest Cities by First Two Letters | 0 | - | 4.65 | 56,327 |
| U.S. States by Second Most Populous City | 0 | - | 4.40 | 36,615 |
| Chinese Geography on the Map | 0 | - | 4.53 | 18,766 |
| Most Guessed Asian Capitals | 0 | - | 4.43 | 40,970 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.72 | 62,189 |
| First U.S. States to Reach 1 Million People | 0 | - | 4.45 | 54,367 |
| First U.S. Cities to Reach 100,000 People | 0 | - | 4.53 | 43,450 |
| Biggest Cities in Deserts | 0 | - | 4.86 | 37,581 |
| Flags of Countries that Border China | 0 | - | 4.91 | 69,586 |
| Closest Countries to North Korea | 0 | - | 4.94 | 94,144 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 262,241 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.92 | 79,891 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.92 | 61,953 |
| Biggest "Saint" Cities - United States | 0 | - | 4.38 | 30,628 |
| Ten Southernmost Megacities | 0 | - | 4.82 | 41,781 |
| Which City in the Middle East? | 0 | - | 4.46 | 46,107 |
| China by Picture | 0 | - | 4.55 | 45,145 |
| Countries that Visit Japan the Most | 0 | - | 4.89 | 60,900 |
| 500 Biggest US Cities | 0 | - | 4.88 | 76,352 |
| Fastest Shrinking U.S. Cities | 0 | - | 4.46 | 26,491 |
| Saint Lucia Country Quiz | 0 | - | 4.57 | 13,920 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 54,528 |
| Random Asian Capital to Country | 0 | - | 4.97 | 63,304 |
| Random Asian Country to Capital | 0 | - | 4.92 | 64,731 |
| Countries that Beat China | 0 | - | 4.68 | 74,092 |
| Biggest Cities in France - Extreme | 0 | - | 4.84 | 32,063 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.82 | 45,523 |
| Taiwan Country Quiz | 0 | - | 4.86 | 31,261 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.90 | 51,438 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 80,676 |
| China Multiple Choice | 0 | - | 4.42 | 32,261 |
| Asian Cities by Wikipedia Descriptions | 0 | - | 4.48 | 21,906 |
| Biggest Cities and Towns in England - 1377 AD | 0 | - | 4.58 | 21,742 |
| Countries Closest to Taiwan | 0 | - | 4.86 | 67,637 |
| 100 Biggest Cities in Spain on a Map | 0 | - | 4.63 | 27,614 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.82 | 42,177 |
| Random Asian Capitals on a Map | 0 | - | 4.72 | 38,486 |
