| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,300,595 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 738,213 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,396 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,539 |
| Country Shape Quiz #4 | 0 | - | 4.91 | 180,307 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,169,665 |
| Biggest Countries by Area | 0 | - | 4.99 | 830,379 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,983 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,954 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,930 |
| Island Countries Quiz | 0 | - | 4.99 | 578,034 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,733 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,303 |
| Majority Muslim Countries | 0 | - | 4.96 | 282,075 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,550 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 353,277 |
| Countries That Border Russia | 0 | - | 4.98 | 368,965 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,838 |
| Communist Countries in History | 0 | - | 4.48 | 384,357 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,948 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,429 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,684 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,559 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,548 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 307,149 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,465 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,110 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,550 |
| One Border Countries | 0 | - | 4.98 | 359,954 |
| NATO Countries Quiz | 0 | - | 4.97 | 202,195 |
| EU Countries Quiz | 0 | - | 4.99 | 207,319 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,484,650 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,258,043 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,646 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,960 |
| Countries that Start with A | 0 | - | 4.96 | 1,634,667 |
| Countries that Start with B | 0 | - | 4.94 | 1,772,217 |
| Countries that Start with C | 0 | - | 4.95 | 1,404,213 |
| Countries that Start with D | 0 | - | 4.97 | 465,733 |
| Countries that Start with E | 0 | - | 4.93 | 1,035,859 |
| Countries that Start with G | 0 | - | 4.95 | 1,133,725 |
| Countries that Start with H | 0 | - | 4.93 | 392,451 |
| Countries that Start with I | 0 | - | 4.91 | 979,437 |
| Countries that Start with J | 0 | - | 4.96 | 395,777 |
| Countries that Start with K | 0 | - | 4.95 | 574,348 |
| Countries that Start with L | 0 | - | 4.98 | 816,100 |
| Countries that Start with N | 0 | - | 4.90 | 837,577 |
| Countries that Start with P | 0 | - | 4.94 | 925,432 |
| Countries that Start with R | 0 | - | 4.42 | 301,325 |
| Countries that Start with S | 0 | - | 4.96 | 1,360,717 |
| Countries that Start with T | 0 | - | 4.89 | 761,322 |
| Countries that Start with U | 0 | - | 4.97 | 686,901 |
| Countries that Start with V | 0 | - | 4.97 | 457,665 |
| Countries that Start with F | 0 | - | 4.77 | 425,801 |
| Countries that Start with M | 0 | - | 4.95 | 1,063,609 |
| Countries that Border China | 0 | - | 4.97 | 212,485 |
| Countries in World War II | 0 | - | 4.48 | 682,644 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 165,277 |
| Countries in World War I | 0 | - | 4.91 | 183,320 |
| Countries with Four Letters | 0 | - | 4.99 | 321,864 |
| Countries of Africa | 0 | - | 5.00 | 1,742,555 |
| Countries of South America | 0 | - | 5.00 | 626,599 |
| Countries of North America Quiz | 0 | - | 5.00 | 710,182 |
| Countries of Oceania | 0 | - | 5.00 | 716,528 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,667 |
| Vietnam War Countries | 0 | - | 4.78 | 76,885 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,777 |
| Countries Bordering France | 0 | - | 4.90 | 309,919 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 200,047 |
| Countries Bordering Germany | 0 | - | 4.99 | 293,329 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,390 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,448 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,223 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,642 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,262 |
| Countries by Clue #1 | 0 | - | 4.89 | 196,172 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,646 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 158,133 |
| Independence from Whom | 0 | - | 4.99 | 153,215 |
| Countries with Z | 0 | - | 4.99 | 223,412 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 37,638 |
| Political Movements by Country | 0 | - | 4.50 | 62,068 |
| "Land" Countries | 0 | - | 4.98 | 265,543 |
| European Countries by Clue | 0 | - | 4.94 | 154,720 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 218,301 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,682 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,798 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 247,289 |
| Former Countries by Capital | 0 | - | 4.41 | 97,503 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,309 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,755 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,887 |
| Countries with the Most Forest | 0 | - | 4.89 | 125,923 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,509 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 89,151 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,608 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.51 | 31,713 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 182,069 |
| Historical City to Country | 0 | - | 4.81 | 66,520 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,086 |
| Countries in the Ottoman Empire | 0 | - | 4.93 | 50,845 |
| Countries Closest to Canada | 0 | - | 4.93 | 157,122 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,998 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,961 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 343,384 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,429 |
| WWII Geography | 0 | - | 4.74 | 89,109 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,340,675 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 129,180 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 163,393 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 169,120 |
| Countries with the Most HIV | 0 | - | 4.42 | 39,487 |
| Former Countries | 0 | - | 4.53 | 100,561 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 225,063 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 173,371 |
| Top 10 Solar Power Countries | 0 | - | 4.81 | 51,540 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,382 |
| Country Chain | 0 | - | 4.92 | 157,182 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 999,848 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,983 |
| Countries with Glaciers | 0 | - | 4.97 | 72,778 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,106 |
| Every Country Shape | 0 | - | 4.99 | 314,613 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,888,222 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 218,058 |
| Countries with Megacities | 0 | - | 4.99 | 176,402 |
| Every European Country Shape | 0 | - | 4.94 | 152,872 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 165,535 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 170,774 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,705 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 153,774 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,655,658 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 215,098 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,225 |
| One Country By Letter By Continent | 0 | - | 4.99 | 37,032 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,455 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,828 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,841 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,770 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,949 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 176,662 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,993 |
| Most Recently-Settled Countries | 0 | - | 4.90 | 44,914 |
| Tropical Rainforest Countries | 0 | - | 4.48 | 64,299 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.86 | 44,377 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 160,323 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 74,034 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,623 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 48,042 |
| Northernmost Countries Without Glaciers | 0 | - | 4.72 | 16,571 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,609 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,148 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,652 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,865 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,298 |
| Countries with the Most Malaria Deaths | 0 | - | 4.36 | 29,499 |
| Least-Forested Countries | 0 | - | 4.41 | 48,787 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.57 | 54,091 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,684 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,172 |
| Most Forested European Countries | 0 | - | 4.74 | 60,469 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,860 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,645 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,428 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,500 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,057 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,280 |
| Countries with the Most Mangroves | 0 | - | 4.47 | 29,472 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,905 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,171 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.72 | 61,991 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,460 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,066 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,268 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,798 |
| Countries by Emojis | 0 | - | 4.99 | 159,106 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 249,127 |
| Country by Photo of its Leader #1 | 0 | - | 4.74 | 80,875 |
| Roman Provinces on a Map | 0 | - | 4.73 | 25,798 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,715 |
| Random Flag to Country | 0 | - | 4.99 | 389,450 |
| Countries with the Most Forest A-Z | 0 | - | 4.52 | 45,702 |
| Name a Valid Country #1 | 0 | - | 4.99 | 174,082 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,126 |
| Worst Plastic Polluting Countries | 0 | - | 4.47 | 53,691 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,413 |
| Name a Valid Country #2 | 0 | - | 4.97 | 152,695 |
| Name a Valid Country #3 | 0 | - | 4.98 | 163,337 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,099,026 |
| Countries of the German Empire | 0 | - | 4.36 | 26,736 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,427 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,992 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,154 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 175,175 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 159,656 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,355 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 168,174 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 106,094 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,629 |
| Battle to Country | 0 | - | 4.89 | 30,657 |
