| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,101,717 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 735,061 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,353 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,855 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 179,796 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,165,584 |
| Biggest Countries by Area | 0 | - | 4.99 | 827,357 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,663 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,597 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 295,019 |
| Island Countries Quiz | 0 | - | 4.99 | 576,151 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,791 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,900 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,214 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,497 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,415 |
| Countries That Border Russia | 0 | - | 4.98 | 367,488 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,299 |
| Communist Countries in History | 0 | - | 4.47 | 382,644 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,157 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,313 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,278 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,113 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,999 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,255 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,651 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,700 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,438 |
| One Border Countries | 0 | - | 4.98 | 358,367 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,539 |
| EU Countries Quiz | 0 | - | 4.99 | 206,714 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,462,728 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,248,472 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,018 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,869 |
| Countries that Start with A | 0 | - | 4.96 | 1,626,680 |
| Countries that Start with B | 0 | - | 4.94 | 1,764,205 |
| Countries that Start with C | 0 | - | 4.95 | 1,397,916 |
| Countries that Start with D | 0 | - | 4.96 | 462,520 |
| Countries that Start with E | 0 | - | 4.93 | 1,030,867 |
| Countries that Start with G | 0 | - | 4.95 | 1,128,158 |
| Countries that Start with H | 0 | - | 4.92 | 389,681 |
| Countries that Start with I | 0 | - | 4.90 | 975,145 |
| Countries that Start with J | 0 | - | 4.96 | 392,965 |
| Countries that Start with K | 0 | - | 4.95 | 570,740 |
| Countries that Start with L | 0 | - | 4.98 | 811,959 |
| Countries that Start with N | 0 | - | 4.90 | 833,226 |
| Countries that Start with P | 0 | - | 4.94 | 920,870 |
| Countries that Start with R | 0 | - | 4.41 | 299,114 |
| Countries that Start with S | 0 | - | 4.97 | 1,354,271 |
| Countries that Start with T | 0 | - | 4.89 | 757,672 |
| Countries that Start with U | 0 | - | 4.97 | 683,609 |
| Countries that Start with V | 0 | - | 4.97 | 455,432 |
| Countries that Start with F | 0 | - | 4.74 | 423,008 |
| Countries that Start with M | 0 | - | 4.95 | 1,058,718 |
| Countries that Border China | 0 | - | 4.97 | 211,813 |
| Countries in World War II | 0 | - | 4.47 | 678,993 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 164,770 |
| Countries in World War I | 0 | - | 4.92 | 182,556 |
| Countries with Four Letters | 0 | - | 4.99 | 320,741 |
| Countries of Africa | 0 | - | 5.00 | 1,729,912 |
| Countries of South America | 0 | - | 5.00 | 621,621 |
| Countries of North America Quiz | 0 | - | 5.00 | 704,776 |
| Countries of Oceania | 0 | - | 5.00 | 711,080 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,119 |
| Vietnam War Countries | 0 | - | 4.78 | 76,563 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,004 |
| Countries Bordering France | 0 | - | 4.90 | 308,738 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,238 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,810 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,036 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,808 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 64,975 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,940 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,892 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,642 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,148 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,701 |
| Independence from Whom | 0 | - | 4.99 | 152,741 |
| Countries with Z | 0 | - | 4.99 | 222,814 |
| Holy Roman Empire Countries | 0 | - | 4.56 | 37,439 |
| Political Movements by Country | 0 | - | 4.49 | 61,872 |
| "Land" Countries | 0 | - | 4.98 | 264,532 |
| European Countries by Clue | 0 | - | 4.94 | 154,274 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.94 | 206,555 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,182 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,478 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,402 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,863 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,498 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,764 |
| Countries with the Most Forest | 0 | - | 4.89 | 125,634 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,272 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 88,886 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,200 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.51 | 31,584 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,339 |
| Historical City to Country | 0 | - | 4.81 | 66,312 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,665 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,627 |
| Countries Closest to Canada | 0 | - | 4.93 | 156,316 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,104 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,693 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,008 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,765 |
| WWII Geography | 0 | - | 4.73 | 88,480 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,319,896 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,812 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 162,836 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,506 |
| Countries with the Most HIV | 0 | - | 4.42 | 39,370 |
| Former Countries | 0 | - | 4.52 | 100,289 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,387 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 172,801 |
| Top 10 Solar Power Countries | 0 | - | 4.79 | 51,366 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,097 |
| Guerrillas by Country | 0 | - | 4.42 | 34,833 |
| Country Chain | 0 | - | 4.92 | 156,490 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 995,675 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,311 |
| Countries with Glaciers | 0 | - | 4.97 | 72,568 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,543 |
| Every Country Shape | 0 | - | 4.99 | 312,727 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,873,702 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,255 |
| Countries with Megacities | 0 | - | 4.99 | 175,169 |
| Every European Country Shape | 0 | - | 4.94 | 152,284 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 165,018 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 169,891 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,967 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 152,530 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,641,993 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 191,330 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,773 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,796 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,890 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,327 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,139 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,012 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,227 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 175,896 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,661 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,764 |
| Tropical Rainforest Countries | 0 | - | 4.47 | 64,168 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.86 | 44,227 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 159,614 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,748 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,378 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,864 |
| Northernmost Countries Without Glaciers | 0 | - | 4.72 | 16,460 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,457 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,795 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,349 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,226 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,225 |
| Countries with the Most Malaria Deaths | 0 | - | 4.36 | 29,428 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.54 | 53,922 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,205 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,143 |
| Most Forested European Countries | 0 | - | 4.74 | 60,263 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,315 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,436 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,220 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,316 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,857 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,852 |
| Countries with the Most Mangroves | 0 | - | 4.47 | 29,371 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,348 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,955 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,550 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,949 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,964 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,890 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,402 |
| Countries by Emojis | 0 | - | 4.99 | 158,044 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,312 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,546 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,595 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,223 |
| Random Flag to Country | 0 | - | 4.99 | 387,068 |
| Countries with the Most Forest A-Z | 0 | - | 4.49 | 45,556 |
| Name a Valid Country #1 | 0 | - | 4.99 | 171,955 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,960 |
| Worst Plastic Polluting Countries | 0 | - | 4.49 | 53,357 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,546 |
| Name a Valid Country #2 | 0 | - | 4.97 | 150,515 |
| Name a Valid Country #3 | 0 | - | 4.98 | 161,652 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,092,103 |
| Countries of the German Empire | 0 | - | 4.36 | 26,593 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,177 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,554 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,653 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 174,060 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 158,686 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,721 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 166,843 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,265 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,136 |
| Battle to Country | 0 | - | 4.89 | 30,526 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,888 |
