| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,251,135 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 737,512 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 344,165 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 246,386 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 180,199 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,168,762 |
| Biggest Countries by Area | 0 | - | 4.99 | 829,685 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,907 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,893 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.90 | 295,693 |
| Island Countries Quiz | 0 | - | 4.99 | 577,620 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 294,593 |
| Southernmost Countries of the World | 0 | - | 4.99 | 182,240 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,848 |
| Countries with the Most Borders | 0 | - | 4.96 | 318,333 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 353,050 |
| Countries That Border Russia | 0 | - | 4.98 | 368,633 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,715 |
| Communist Countries in History | 0 | - | 4.48 | 383,961 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,819 |
| Islands by Country #1 | 0 | - | 4.86 | 149,551 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 287,258 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,586 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,468 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,443 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,956 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 301,276 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 133,036 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,527 |
| One Border Countries | 0 | - | 4.98 | 359,638 |
| NATO Countries Quiz | 0 | - | 4.97 | 202,046 |
| EU Countries Quiz | 0 | - | 4.99 | 207,160 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,479,602 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,255,730 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,561 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,949 |
| Countries that Start with A | 0 | - | 4.96 | 1,632,827 |
| Countries that Start with B | 0 | - | 4.94 | 1,770,420 |
| Countries that Start with C | 0 | - | 4.95 | 1,402,762 |
| Countries that Start with D | 0 | - | 4.96 | 464,959 |
| Countries that Start with E | 0 | - | 4.93 | 1,034,707 |
| Countries that Start with G | 0 | - | 4.95 | 1,132,310 |
| Countries that Start with H | 0 | - | 4.93 | 391,774 |
| Countries that Start with I | 0 | - | 4.90 | 978,429 |
| Countries that Start with J | 0 | - | 4.96 | 395,117 |
| Countries that Start with K | 0 | - | 4.94 | 573,485 |
| Countries that Start with L | 0 | - | 4.98 | 815,151 |
| Countries that Start with N | 0 | - | 4.90 | 836,373 |
| Countries that Start with P | 0 | - | 4.94 | 924,363 |
| Countries that Start with R | 0 | - | 4.42 | 300,816 |
| Countries that Start with S | 0 | - | 4.96 | 1,359,177 |
| Countries that Start with T | 0 | - | 4.89 | 760,500 |
| Countries that Start with U | 0 | - | 4.97 | 686,138 |
| Countries that Start with V | 0 | - | 4.97 | 457,139 |
| Countries that Start with F | 0 | - | 4.76 | 425,134 |
| Countries that Start with M | 0 | - | 4.95 | 1,062,494 |
| Countries that Border China | 0 | - | 4.97 | 212,326 |
| Countries in World War II | 0 | - | 4.48 | 681,816 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 165,186 |
| Countries in World War I | 0 | - | 4.91 | 183,145 |
| Countries with Four Letters | 0 | - | 4.99 | 321,580 |
| Countries of Africa | 0 | - | 5.00 | 1,739,775 |
| Countries of South America | 0 | - | 5.00 | 625,456 |
| Countries of North America Quiz | 0 | - | 5.00 | 708,954 |
| Countries of Oceania | 0 | - | 5.00 | 715,259 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,495 |
| Vietnam War Countries | 0 | - | 4.78 | 76,810 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,657 |
| Countries Bordering France | 0 | - | 4.90 | 309,667 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,927 |
| Countries Bordering Germany | 0 | - | 4.99 | 293,075 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,321 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 253,301 |
| Countries "Ruled" by King Charles III | 0 | - | 4.74 | 65,157 |
| Countries of the Soviet Union | 0 | - | 4.99 | 146,476 |
| Countries in their Native Language | 0 | - | 4.97 | 149,838 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 92,187 |
| Countries by Clue #1 | 0 | - | 4.89 | 196,031 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,526 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 158,034 |
| Independence from Whom | 0 | - | 4.99 | 153,108 |
| Countries with Z | 0 | - | 4.99 | 223,283 |
| Holy Roman Empire Countries | 0 | - | 4.57 | 37,596 |
| Political Movements by Country | 0 | - | 4.50 | 62,030 |
| "Land" Countries | 0 | - | 4.98 | 265,352 |
| European Countries by Clue | 0 | - | 4.94 | 154,611 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.95 | 218,009 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,572 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,736 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 247,078 |
| Former Countries by Capital | 0 | - | 4.41 | 97,465 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 147,224 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,692 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,867 |
| Cold War Trivia #1 | 0 | - | 4.34 | 49,674 |
| Cold War Trivia #2 | 0 | - | 4.17 | 23,008 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,462 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,518 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,905 |
| Historical City to Country | 0 | - | 4.81 | 66,456 |
| Biggest Countries by Area A-Z | 0 | - | 4.94 | 148,370 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 75,009 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,792 |
| Countries With the Most Languages | 0 | - | 4.90 | 150,860 |
| Countries Closest to Canada | 0 | - | 4.93 | 157,009 |
| World Leaders of the Cold War | 0 | - | 4.26 | 19,499 |
| Countries Closest to Italy | 0 | - | 4.97 | 148,486 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,838 |
| Countries Ending in "IA" | 0 | - | 4.99 | 150,499 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,904 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 343,083 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 194,289 |
| WWII Geography | 0 | - | 4.73 | 89,043 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,335,921 |
| Countries That End in Y | 0 | - | 4.89 | 148,597 |
| Soviet Leaders 1917–1991 | 0 | - | 4.34 | 65,362 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 129,090 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 163,286 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,982 |
| Countries Invaded by the USSR | 0 | - | 4.22 | 60,167 |
| Former Countries | 0 | - | 4.52 | 100,506 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,889 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.94 | 150,777 |
| Cold War Decoder | 0 | - | 4.54 | 34,154 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 173,238 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,308 |
| Country Chain | 0 | - | 4.92 | 156,852 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.82 | 998,887 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,830 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 111,006 |
| Every Country Shape | 0 | - | 4.99 | 314,248 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,885,047 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,860 |
| Countries with Megacities | 0 | - | 4.99 | 176,227 |
| Every European Country Shape | 0 | - | 4.94 | 152,773 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 165,407 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 170,587 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,534 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 153,495 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,652,510 |
| Countries of the Middle East | 0 | - | 4.96 | 148,836 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 214,301 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 66,124 |
| One Country By Letter By Continent | 0 | - | 4.99 | 36,705 |
| Most Populous Countries by Year | 0 | - | 4.78 | 79,355 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,712 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,680 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,619 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,790 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 176,497 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 188,682 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,881 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 160,154 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,977 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,548 |
| Countries of Asia in 1900 | 0 | - | 4.42 | 48,002 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,568 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 81,059 |
| Soviet Union Country Quiz | 0 | - | 4.79 | 56,580 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,715 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.16 | 33,704 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,577 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,166 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,751 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,598 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,384 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,449 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 48,005 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 99,207 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,795 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 43,126 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,906 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 85,358 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 24,041 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 62,183 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,714 |
| Countries by Emojis | 0 | - | 4.99 | 158,743 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 248,673 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,800 |
| Roman Provinces on a Map | 0 | - | 4.73 | 25,745 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,611 |
| Random Flag to Country | 0 | - | 4.99 | 388,989 |
| Name a Valid Country #1 | 0 | - | 4.99 | 172,833 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 34,090 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 147,224 |
| Name a Valid Country #2 | 0 | - | 4.97 | 151,550 |
| Name a Valid Country #3 | 0 | - | 4.98 | 162,315 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,097,684 |
| Countries of the German Empire | 0 | - | 4.36 | 26,702 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,374 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 240,659 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 73,051 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 174,925 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 159,312 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 93,245 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 167,936 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,909 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,525 |
| Battle to Country | 0 | - | 4.89 | 30,637 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,979 |
