| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,259,647 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 737,626 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,206 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,416 |
| Country Shape Quiz #4 | 0 | - | 4.91 | 180,222 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,976 |
| Biggest Countries by Area | 0 | - | 4.99 | 829,836 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,924 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,905 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,743 |
| Island Countries Quiz | 0 | - | 4.99 | 577,709 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,611 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,255 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,889 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,388 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 353,096 |
| Countries That Border Russia | 0 | - | 4.98 | 368,695 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,735 |
| Communist Countries in History | 0 | - | 4.48 | 384,041 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,838 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,291 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,604 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,481 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,461 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 307,002 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,314 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,049 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,534 |
| One Border Countries | 0 | - | 4.98 | 359,694 |
| NATO Countries Quiz | 0 | - | 4.97 | 202,070 |
| EU Countries Quiz | 0 | - | 4.99 | 207,184 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,480,420 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,256,026 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,577 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,952 |
| Countries that Start with A | 0 | - | 4.96 | 1,633,199 |
| Countries that Start with B | 0 | - | 4.94 | 1,770,768 |
| Countries that Start with C | 0 | - | 4.95 | 1,403,065 |
| Countries that Start with D | 0 | - | 4.96 | 465,119 |
| Countries that Start with E | 0 | - | 4.93 | 1,034,939 |
| Countries that Start with G | 0 | - | 4.95 | 1,132,668 |
| Countries that Start with H | 0 | - | 4.93 | 391,913 |
| Countries that Start with I | 0 | - | 4.91 | 978,644 |
| Countries that Start with J | 0 | - | 4.96 | 395,257 |
| Countries that Start with K | 0 | - | 4.95 | 573,671 |
| Countries that Start with L | 0 | - | 4.98 | 815,368 |
| Countries that Start with N | 0 | - | 4.90 | 836,663 |
| Countries that Start with P | 0 | - | 4.94 | 924,571 |
| Countries that Start with R | 0 | - | 4.42 | 300,921 |
| Countries that Start with S | 0 | - | 4.96 | 1,359,479 |
| Countries that Start with T | 0 | - | 4.89 | 760,685 |
| Countries that Start with U | 0 | - | 4.97 | 686,299 |
| Countries that Start with V | 0 | - | 4.97 | 457,253 |
| Countries that Start with F | 0 | - | 4.76 | 425,260 |
| Countries that Start with M | 0 | - | 4.96 | 1,062,719 |
| Countries that Border China | 0 | - | 4.97 | 212,349 |
| Countries in World War II | 0 | - | 4.48 | 681,958 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 165,199 |
| Countries in World War I | 0 | - | 4.91 | 183,169 |
| Countries with Four Letters | 0 | - | 4.99 | 321,622 |
| Countries of Africa | 0 | - | 5.00 | 1,740,279 |
| Countries of South America | 0 | - | 5.00 | 625,629 |
| Countries of North America Quiz | 0 | - | 5.00 | 709,151 |
| Countries of Oceania | 0 | - | 5.00 | 715,437 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,516 |
| Vietnam War Countries | 0 | - | 4.78 | 76,831 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,669 |
| Countries Bordering France | 0 | - | 4.90 | 309,722 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,946 |
| Countries Bordering Germany | 0 | - | 4.99 | 293,133 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,333 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,322 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,173 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,505 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,214 |
| Countries by Clue #1 | 0 | - | 4.89 | 196,051 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,547 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 158,055 |
| Independence from Whom | 0 | - | 4.99 | 153,126 |
| Countries with Z | 0 | - | 4.99 | 223,309 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 37,602 |
| Political Movements by Country | 0 | - | 4.50 | 62,038 |
| "Land" Countries | 0 | - | 4.98 | 265,381 |
| European Countries by Clue | 0 | - | 4.94 | 154,643 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 218,064 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,601 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,744 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 247,115 |
| Former Countries by Capital | 0 | - | 4.41 | 97,474 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,243 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,709 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,869 |
| Countries with the Most Forest | 0 | - | 4.89 | 125,865 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,470 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 89,103 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,542 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.51 | 31,692 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,934 |
| Historical City to Country | 0 | - | 4.81 | 66,472 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,024 |
| Countries in the Ottoman Empire | 0 | - | 4.93 | 50,797 |
| Countries Closest to Canada | 0 | - | 4.93 | 157,037 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,870 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,910 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 343,150 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,310 |
| WWII Geography | 0 | - | 4.74 | 89,049 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,336,763 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,109 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 163,310 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 169,002 |
| Countries with the Most HIV | 0 | - | 4.42 | 39,467 |
| Former Countries | 0 | - | 4.53 | 100,512 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,914 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 173,260 |
| Top 10 Solar Power Countries | 0 | - | 4.81 | 51,497 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,326 |
| Country Chain | 0 | - | 4.92 | 156,870 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 999,034 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,867 |
| Countries with Glaciers | 0 | - | 4.97 | 72,745 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,026 |
| Every Country Shape | 0 | - | 4.99 | 314,327 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,885,749 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,897 |
| Countries with Megacities | 0 | - | 4.99 | 176,264 |
| Every European Country Shape | 0 | - | 4.94 | 152,791 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 165,430 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 170,624 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,569 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 153,555 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,653,090 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 214,421 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,137 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,771 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,392 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,734 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,704 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,651 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,819 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 176,518 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,724 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,889 |
| Tropical Rainforest Countries | 0 | - | 4.49 | 64,275 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.86 | 44,349 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 160,179 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,989 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,556 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 48,008 |
| Northernmost Countries Without Glaciers | 0 | - | 4.72 | 16,547 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,574 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,080 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,594 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,743 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,279 |
| Countries with the Most Malaria Deaths | 0 | - | 4.36 | 29,488 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.57 | 54,062 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,602 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,168 |
| Most Forested European Countries | 0 | - | 4.74 | 60,424 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,778 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,607 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,395 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,463 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,013 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,218 |
| Countries with the Most Mangroves | 0 | - | 4.47 | 29,451 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,815 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,129 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.72 | 61,934 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,385 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,044 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,199 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,736 |
| Countries by Emojis | 0 | - | 4.99 | 158,813 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 248,722 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 80,815 |
| Roman Provinces on a Map | 0 | - | 4.73 | 25,764 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,636 |
| Random Flag to Country | 0 | - | 4.99 | 389,063 |
| Countries with the Most Forest A-Z | 0 | - | 4.50 | 45,676 |
| Name a Valid Country #1 | 0 | - | 4.99 | 172,875 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,097 |
| Worst Plastic Polluting Countries | 0 | - | 4.47 | 53,650 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,260 |
| Name a Valid Country #2 | 0 | - | 4.97 | 151,578 |
| Name a Valid Country #3 | 0 | - | 4.98 | 162,338 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,097,909 |
| Countries of the German Empire | 0 | - | 4.36 | 26,708 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,381 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,725 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,068 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 174,969 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 159,341 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,268 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 167,981 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,939 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,545 |
| Battle to Country | 0 | - | 4.89 | 30,641 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,988 |
