| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,219,575 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 737,010 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,982 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,284 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 180,125 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,107 |
| Biggest Countries by Area | 0 | - | 4.99 | 829,204 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,869 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,844 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,547 |
| Island Countries Quiz | 0 | - | 4.99 | 577,298 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,479 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,164 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,729 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,158 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,942 |
| Countries That Border Russia | 0 | - | 4.98 | 368,386 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,631 |
| Communist Countries in History | 0 | - | 4.48 | 383,674 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,717 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,143 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,521 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,402 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,372 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,846 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,146 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,966 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,500 |
| One Border Countries | 0 | - | 4.98 | 359,389 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,954 |
| EU Countries Quiz | 0 | - | 4.99 | 207,047 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,476,201 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,254,320 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,506 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,933 |
| Countries that Start with A | 0 | - | 4.96 | 1,631,476 |
| Countries that Start with B | 0 | - | 4.94 | 1,769,042 |
| Countries that Start with C | 0 | - | 4.95 | 1,401,733 |
| Countries that Start with D | 0 | - | 4.96 | 464,432 |
| Countries that Start with E | 0 | - | 4.93 | 1,033,859 |
| Countries that Start with G | 0 | - | 4.95 | 1,131,403 |
| Countries that Start with H | 0 | - | 4.93 | 391,349 |
| Countries that Start with I | 0 | - | 4.90 | 977,735 |
| Countries that Start with J | 0 | - | 4.96 | 394,675 |
| Countries that Start with K | 0 | - | 4.94 | 572,898 |
| Countries that Start with L | 0 | - | 4.98 | 814,494 |
| Countries that Start with N | 0 | - | 4.90 | 835,675 |
| Countries that Start with P | 0 | - | 4.94 | 923,593 |
| Countries that Start with R | 0 | - | 4.42 | 300,459 |
| Countries that Start with S | 0 | - | 4.96 | 1,358,104 |
| Countries that Start with T | 0 | - | 4.89 | 759,927 |
| Countries that Start with U | 0 | - | 4.97 | 685,618 |
| Countries that Start with V | 0 | - | 4.97 | 456,805 |
| Countries that Start with F | 0 | - | 4.76 | 424,708 |
| Countries that Start with M | 0 | - | 4.95 | 1,061,641 |
| Countries that Border China | 0 | - | 4.97 | 212,196 |
| Countries in World War II | 0 | - | 4.48 | 681,241 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 165,133 |
| Countries in World War I | 0 | - | 4.91 | 183,031 |
| Countries with Four Letters | 0 | - | 4.99 | 321,399 |
| Countries of Africa | 0 | - | 5.00 | 1,737,784 |
| Countries of South America | 0 | - | 5.00 | 624,743 |
| Countries of North America Quiz | 0 | - | 5.00 | 708,138 |
| Countries of Oceania | 0 | - | 5.00 | 714,261 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,413 |
| Vietnam War Countries | 0 | - | 4.78 | 76,759 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,545 |
| Countries Bordering France | 0 | - | 4.90 | 309,478 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,827 |
| Countries Bordering Germany | 0 | - | 4.99 | 292,875 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,265 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,205 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,130 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,378 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,142 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,941 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,441 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,967 |
| Independence from Whom | 0 | - | 4.99 | 153,031 |
| Countries with Z | 0 | - | 4.99 | 223,171 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,570 |
| Political Movements by Country | 0 | - | 4.50 | 62,003 |
| "Land" Countries | 0 | - | 4.98 | 265,210 |
| European Countries by Clue | 0 | - | 4.94 | 154,535 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 217,662 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,495 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,685 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,941 |
| Former Countries by Capital | 0 | - | 4.41 | 97,434 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,145 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,656 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,845 |
| Countries with the Most Forest | 0 | - | 4.89 | 125,821 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,428 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 89,058 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,465 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.51 | 31,667 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,791 |
| Historical City to Country | 0 | - | 4.81 | 66,433 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,948 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,759 |
| Countries Closest to Canada | 0 | - | 4.93 | 156,938 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,730 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,858 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,849 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,182 |
| WWII Geography | 0 | - | 4.73 | 88,997 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,332,497 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,033 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 163,202 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,877 |
| Countries with the Most HIV | 0 | - | 4.42 | 39,439 |
| Former Countries | 0 | - | 4.52 | 100,456 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,794 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.94 | 150,699 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 173,136 |
| Top 10 Solar Power Countries | 0 | - | 4.79 | 51,469 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,261 |
| Country Chain | 0 | - | 4.92 | 156,786 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 998,194 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,717 |
| Countries with Glaciers | 0 | - | 4.97 | 72,712 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,918 |
| Every Country Shape | 0 | - | 4.99 | 313,959 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,882,779 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,728 |
| Countries with Megacities | 0 | - | 4.99 | 176,094 |
| Every European Country Shape | 0 | - | 4.94 | 152,685 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 165,316 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 170,446 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,387 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 153,284 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,650,185 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.93 | 213,305 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,047 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,511 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,134 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,639 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,570 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,504 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,665 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 176,388 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,490 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,860 |
| Tropical Rainforest Countries | 0 | - | 4.48 | 64,249 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.86 | 44,322 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 160,047 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,937 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,515 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 47,977 |
| Northernmost Countries Without Glaciers | 0 | - | 4.72 | 16,527 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,544 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,026 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,527 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,623 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,269 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.57 | 54,036 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,498 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,163 |
| Most Forested European Countries | 0 | - | 4.74 | 60,386 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,660 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,565 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,349 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,432 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,975 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,148 |
| Countries with the Most Mangroves | 0 | - | 4.47 | 29,435 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,697 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,082 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,838 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,290 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,027 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,122 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,657 |
| Countries by Emojis | 0 | - | 4.99 | 158,615 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 248,163 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,742 |
| Roman Provinces on a Map | 0 | - | 4.73 | 25,709 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,534 |
| Random Flag to Country | 0 | - | 4.99 | 388,618 |
| Countries with the Most Forest A-Z | 0 | - | 4.50 | 45,644 |
| Name a Valid Country #1 | 0 | - | 4.99 | 172,659 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,067 |
| Worst Plastic Polluting Countries | 0 | - | 4.46 | 53,584 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,098 |
| Name a Valid Country #2 | 0 | - | 4.97 | 151,445 |
| Name a Valid Country #3 | 0 | - | 4.98 | 162,201 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,096,448 |
| Countries of the German Empire | 0 | - | 4.36 | 26,685 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,341 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,447 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,971 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 174,731 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 159,184 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,137 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 167,784 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,781 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,446 |
| Battle to Country | 0 | - | 4.89 | 30,620 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,958 |
