| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,088,903 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 734,810 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,286 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,808 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 179,759 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,165,297 |
| Biggest Countries by Area | 0 | - | 4.99 | 827,171 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,633 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,571 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 294,940 |
| Island Countries Quiz | 0 | - | 4.99 | 576,029 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,753 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,870 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,155 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,409 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,335 |
| Countries That Border Russia | 0 | - | 4.98 | 367,397 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,266 |
| Communist Countries in History | 0 | - | 4.47 | 382,528 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,104 |
| Islands by Country #1 | 0 | - | 4.86 | 149,209 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,269 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,244 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,077 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 204,965 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,183 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,596 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,676 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,435 |
| One Border Countries | 0 | - | 4.98 | 358,254 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,509 |
| EU Countries Quiz | 0 | - | 4.99 | 206,673 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,461,242 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,247,832 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 130,980 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,865 |
| Countries that Start with A | 0 | - | 4.96 | 1,626,159 |
| Countries that Start with B | 0 | - | 4.94 | 1,763,637 |
| Countries that Start with C | 0 | - | 4.95 | 1,397,507 |
| Countries that Start with D | 0 | - | 4.96 | 462,292 |
| Countries that Start with E | 0 | - | 4.93 | 1,030,547 |
| Countries that Start with G | 0 | - | 4.95 | 1,127,825 |
| Countries that Start with H | 0 | - | 4.92 | 389,489 |
| Countries that Start with I | 0 | - | 4.90 | 974,837 |
| Countries that Start with J | 0 | - | 4.96 | 392,771 |
| Countries that Start with K | 0 | - | 4.95 | 570,491 |
| Countries that Start with L | 0 | - | 4.98 | 811,702 |
| Countries that Start with N | 0 | - | 4.90 | 832,980 |
| Countries that Start with P | 0 | - | 4.94 | 920,560 |
| Countries that Start with R | 0 | - | 4.41 | 298,951 |
| Countries that Start with S | 0 | - | 4.97 | 1,353,855 |
| Countries that Start with T | 0 | - | 4.89 | 757,425 |
| Countries that Start with U | 0 | - | 4.97 | 683,376 |
| Countries that Start with V | 0 | - | 4.97 | 455,259 |
| Countries that Start with F | 0 | - | 4.74 | 422,814 |
| Countries that Start with M | 0 | - | 4.95 | 1,058,404 |
| Countries that Border China | 0 | - | 4.97 | 211,768 |
| Countries in World War II | 0 | - | 4.47 | 678,749 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 164,742 |
| Countries in World War I | 0 | - | 4.92 | 182,498 |
| Countries with Four Letters | 0 | - | 4.99 | 320,660 |
| Countries of Africa | 0 | - | 5.00 | 1,729,105 |
| Countries of South America | 0 | - | 5.00 | 621,275 |
| Countries of North America Quiz | 0 | - | 5.00 | 704,419 |
| Countries of Oceania | 0 | - | 5.00 | 710,742 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,083 |
| Vietnam War Countries | 0 | - | 4.78 | 76,550 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 205,972 |
| Countries Bordering France | 0 | - | 4.90 | 308,685 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,196 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,733 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,018 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,772 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 64,964 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,896 |
| Countries in their Native Language | 0 | - | 4.97 | 149,489 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,875 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,591 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,109 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,677 |
| Independence from Whom | 0 | - | 4.99 | 152,699 |
| Countries with Z | 0 | - | 4.99 | 222,783 |
| Holy Roman Empire Countries | 0 | - | 4.56 | 37,432 |
| Political Movements by Country | 0 | - | 4.49 | 61,860 |
| "Land" Countries | 0 | - | 4.98 | 264,432 |
| European Countries by Clue | 0 | - | 4.94 | 154,248 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.94 | 206,304 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,138 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,450 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,360 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,841 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,480 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,760 |
| Cold War Trivia #1 | 0 | - | 4.34 | 49,514 |
| Cold War Trivia #2 | 0 | - | 4.17 | 22,923 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,255 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,177 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,292 |
| Historical City to Country | 0 | - | 4.81 | 66,300 |
| Biggest Countries by Area A-Z | 0 | - | 4.94 | 148,036 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,638 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,615 |
| Countries With the Most Languages | 0 | - | 4.90 | 150,080 |
| Countries Closest to Canada | 0 | - | 4.93 | 156,280 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,417 |
| Countries Closest to Italy | 0 | - | 4.97 | 147,791 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,062 |
| Countries Ending in "IA" | 0 | - | 4.99 | 150,005 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,668 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 341,929 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,713 |
| WWII Geography | 0 | - | 4.73 | 88,456 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,318,495 |
| Countries That End in Y | 0 | - | 4.89 | 148,224 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 65,129 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,783 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 162,799 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,467 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 59,959 |
| Former Countries | 0 | - | 4.52 | 100,273 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,342 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.94 | 150,285 |
| Cold War Decoder | 0 | - | 4.54 | 33,998 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 172,756 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,082 |
| Guerrillas by Country | 0 | - | 4.42 | 34,824 |
| Country Chain | 0 | - | 4.92 | 156,448 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 995,431 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,271 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,508 |
| Every Country Shape | 0 | - | 4.99 | 312,603 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,872,722 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,212 |
| Countries with Megacities | 0 | - | 4.99 | 174,899 |
| Every European Country Shape | 0 | - | 4.94 | 152,239 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 164,978 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 169,819 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 167,888 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 152,451 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,641,163 |
| Countries of the Middle East | 0 | - | 4.96 | 147,905 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 191,250 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,744 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,706 |
| Most Populous Countries by Year | 0 | - | 4.77 | 78,854 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,280 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,097 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 111,952 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,183 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 175,862 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,573 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,756 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 159,569 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,735 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,368 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,847 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,448 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,773 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,331 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,189 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.16 | 33,609 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,172 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,143 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,281 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,424 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,205 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,299 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,846 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,789 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,306 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,930 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,514 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,900 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,958 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,854 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,366 |
| Countries by Emojis | 0 | - | 4.99 | 157,981 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,222 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,526 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,584 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,194 |
| Random Flag to Country | 0 | - | 4.99 | 386,922 |
| Name a Valid Country #1 | 0 | - | 4.99 | 171,896 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,950 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,501 |
| Name a Valid Country #2 | 0 | - | 4.97 | 150,469 |
| Name a Valid Country #3 | 0 | - | 4.98 | 161,610 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,091,637 |
| Countries of the German Empire | 0 | - | 4.36 | 26,584 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,169 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,476 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,622 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 174,003 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 158,626 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,680 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 166,777 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,217 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,103 |
| Battle to Country | 0 | - | 4.89 | 30,511 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,875 |
