| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 38,383,218 |
| Country Shape Quiz #1 | 0 | - | 4.88 | 802,897 |
| Country Shape Quiz #2 | 0 | - | 4.93 | 366,202 |
| Country Shape Quiz #3 | 0 | - | 4.91 | 259,357 |
| Country Shape Quiz #4 | 0 | - | 4.91 | 190,716 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,253,982 |
| Biggest Countries by Area | 0 | - | 4.99 | 893,397 |
| Countries with the Highest Life Expectancy | 0 | - | 4.87 | 189,449 |
| Spanish-Speaking Countries | 0 | - | 4.87 | 329,833 |
| Island Countries Quiz | 0 | - | 4.99 | 619,947 |
| Northernmost Countries | 0 | - | 4.98 | 319,043 |
| Southernmost Countries of the World | 0 | - | 4.99 | 191,116 |
| Majority Muslim Countries | 0 | - | 4.97 | 304,301 |
| Countries with the Most Borders | 0 | - | 4.97 | 339,748 |
| Countries with the Longest Coastlines | 0 | - | 4.82 | 381,376 |
| Countries That Border Russia | 0 | - | 4.97 | 411,692 |
| Countries and Languages Quiz | 0 | - | 4.86 | 229,051 |
| Communist Countries in History | 0 | - | 4.42 | 421,070 |
| Countries with the Most Billionaires | 0 | - | 4.94 | 271,233 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 306,612 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 180,431 |
| 2010 Year in Review | 0 | - | 3.96 | 48,061 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 216,225 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 326,048 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 339,522 |
| One Border Countries | 0 | - | 4.97 | 394,116 |
| 2011 Year in Review | 0 | - | 4.15 | 40,635 |
| NATO Countries Quiz | 0 | - | 4.98 | 215,908 |
| EU Countries Quiz | 0 | - | 4.99 | 219,594 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,911,262 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,451,018 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 139,749 |
| Countries by Independence Day Quiz | 0 | - | 4.43 | 43,801 |
| Countries that Start with A | 0 | - | 4.96 | 1,844,636 |
| Countries that Start with B | 0 | - | 4.93 | 1,983,715 |
| Countries that Start with C | 0 | - | 4.94 | 1,567,614 |
| Countries that Start with D | 0 | - | 4.95 | 551,886 |
| Countries that Start with E | 0 | - | 4.92 | 1,168,160 |
| Countries that Start with G | 0 | - | 4.95 | 1,283,542 |
| Countries that Start with H | 0 | - | 4.92 | 470,483 |
| Countries that Start with I | 0 | - | 4.90 | 1,104,782 |
| Countries that Start with J | 0 | - | 4.97 | 474,477 |
| Countries that Start with K | 0 | - | 4.94 | 669,747 |
| Countries that Start with L | 0 | - | 4.98 | 921,921 |
| Countries that Start with N | 0 | - | 4.89 | 947,550 |
| Countries that Start with P | 0 | - | 4.89 | 1,046,737 |
| Countries that Start with R | 0 | - | 4.38 | 361,885 |
| Countries that Start with S | 0 | - | 4.97 | 1,529,309 |
| Countries that Start with T | 0 | - | 4.84 | 846,225 |
| Countries that Start with U | 0 | - | 4.96 | 758,912 |
| Countries that Start with V | 0 | - | 4.97 | 507,480 |
| Countries that Start with F | 0 | - | 4.70 | 505,493 |
| Countries that Start with M | 0 | - | 4.93 | 1,194,718 |
| Countries that Border China | 0 | - | 4.96 | 225,726 |
| Countries in World War II | 0 | - | 4.44 | 764,725 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 174,237 |
| Countries in World War I | 0 | - | 4.91 | 201,710 |
| Countries with Four Letters | 0 | - | 4.99 | 368,900 |
| Countries of Africa | 0 | - | 5.00 | 2,016,499 |
| Countries of South America | 0 | - | 5.00 | 737,967 |
| Countries of North America Quiz | 0 | - | 5.00 | 820,104 |
| Countries of Oceania | 0 | - | 5.00 | 827,327 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 183,167 |
| Vietnam War Countries | 0 | - | 4.75 | 83,918 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 218,059 |
| Countries Bordering France | 0 | - | 4.82 | 345,736 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 211,557 |
| Countries Bordering Germany | 0 | - | 4.99 | 330,100 |
| Countries Bordering China Since 1914 | 0 | - | 4.90 | 85,018 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 281,388 |
| Countries "Ruled" by King Charles III | 0 | - | 4.75 | 79,114 |
| Countries of the Soviet Union | 0 | - | 4.99 | 178,017 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 97,995 |
| Countries by Clue #1 | 0 | - | 4.86 | 210,408 |
| Countries with Five Letters Quiz | 0 | - | 4.95 | 221,436 |
| Independence from Whom | 0 | - | 4.99 | 176,930 |
| Countries with Z | 0 | - | 4.98 | 236,332 |
| Holy Roman Empire Countries | 0 | - | 4.60 | 41,178 |
| Political Movements by Country | 0 | - | 4.42 | 66,347 |
| "Land" Countries | 0 | - | 4.98 | 281,506 |
| 2012 Year in Review | 0 | - | 4.03 | 44,693 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 231,283 |
| Most Populous Countries in 2050 | 0 | - | 4.93 | 184,261 |
| Who Controlled These Colonies? | 0 | - | 4.84 | 107,599 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 275,560 |
| Former Countries by Capital | 0 | - | 4.41 | 101,258 |
| Most Populous Countries in 1900 | 0 | - | 4.89 | 157,025 |
| Warsaw Pact Countries | 0 | - | 4.87 | 78,409 |
| 2013 Year in Review | 0 | - | 4.30 | 39,069 |
| Most Populous Countries in 1950 | 0 | - | 4.44 | 68,502 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 198,808 |
| Historical City to Country | 0 | - | 4.75 | 70,340 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 84,261 |
| Countries in the Ottoman Empire | 0 | - | 4.90 | 65,862 |
| 2014 Year in Review | 0 | - | 4.42 | 30,069 |
| Countries Closest to Canada | 0 | - | 4.89 | 177,730 |
| Countries Closest to Spain | 0 | - | 4.96 | 186,219 |
| Countries Settled by Vikings | 0 | - | 4.94 | 107,967 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 372,123 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 207,890 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,809,066 |
| Countries that Bordered the USSR | 0 | - | 4.91 | 137,897 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 174,236 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 198,206 |
| Former Countries | 0 | - | 4.63 | 120,293 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 238,127 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 186,901 |
| Guerrillas by Country | 0 | - | 4.47 | 37,289 |
| Countries Bordering "U" Countries | 0 | - | 4.75 | 17,951 |
| World Map without 12 Countries | 0 | - | 4.96 | 293,533 |
| 2015 Year in Review | 0 | - | 3.96 | 24,588 |
| Neutral European Countries of WWII | 0 | - | 4.94 | 124,282 |
| Every Country Shape | 0 | - | 5.00 | 358,172 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,208,289 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 236,415 |
| Countries with Megacities | 0 | - | 4.99 | 188,276 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 191,004 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 190,675 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 195,501 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 180,858 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,919,555 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 245,282 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 72,905 |
| One Country By Letter By Continent | 0 | - | 4.99 | 61,237 |
| Most Populous Countries by Year | 0 | - | 4.76 | 88,049 |
| Largest Countries with No Borders | 0 | - | 4.97 | 175,084 |
| Countries of Europe After World War II | 0 | - | 4.98 | 161,756 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 130,496 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 205,047 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 199,541 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 216,601 |
| 2016 News Stories - Name the Country | 0 | - | 4.43 | 21,664 |
| 2016 Year in Review | 0 | - | 3.90 | 31,762 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 47,391 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 176,789 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 79,267 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 65,260 |
| Countries of Asia in 1900 | 0 | - | 4.47 | 51,468 |
| Biggest British Empire Countries | 0 | - | 4.50 | 75,710 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 88,290 |
| Soviet Union Country Quiz | 0 | - | 4.86 | 63,740 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.97 | 170,265 |
| Flags of the Countries that Start with A | 0 | - | 4.95 | 101,880 |
| Quiz on the Year 1997 | 0 | - | 4.27 | 18,207 |
| Flags of the Countries that Start with C | 0 | - | 4.91 | 112,737 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 73,763 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.74 | 66,670 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.91 | 64,987 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 52,073 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 105,880 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 132,312 |
| Most-Visited Countries by Popes | 0 | - | 4.51 | 59,239 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.80 | 71,593 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.84 | 96,921 |
| 2017 News Stories - Name the Country | 0 | - | 4.43 | 26,208 |
| 2017 Year in Review | 0 | - | 4.45 | 29,239 |
| Quiz on the Year 1998 | 0 | - | 4.28 | 14,662 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.93 | 70,513 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.79 | 70,391 |
| Countries by Emojis | 0 | - | 4.99 | 193,902 |
| 17th Century A-Z | 0 | - | 4.54 | 23,291 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 279,930 |
| Country by Photo of its Leader #1 | 0 | - | 4.68 | 86,455 |
| Countries of the World in 1900 | 0 | - | 4.85 | 60,399 |
| Random Flag to Country | 0 | - | 4.99 | 472,247 |
| Name a Valid Country #1 | 0 | - | 4.99 | 211,896 |
| 2018 News Stories - Name the Country | 0 | - | 4.40 | 21,818 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.52 | 44,828 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 161,691 |
| Name a Valid Country #2 | 0 | - | 4.97 | 180,267 |
| Name a Valid Country #3 | 0 | - | 4.98 | 182,263 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,243,606 |
| Countries of the German Empire | 0 | - | 4.46 | 31,409 |
| Countries in the Byzantine Empire | 0 | - | 4.93 | 64,178 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 269,478 |
| Countries of Europe in 1444 | 0 | - | 4.93 | 82,287 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 196,454 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 178,160 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 105,455 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 188,048 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 119,600 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 83,747 |
| Battle to Country | 0 | - | 4.87 | 33,262 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 83,813 |
| Countries by Former Name | 0 | - | 4.98 | 89,624 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 65,358 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 193,804 |
| Random European Countries on a Map | 0 | - | 4.98 | 245,148 |
| Random African Countries on a Map | 0 | - | 4.99 | 231,927 |
| World Map Without 20 Random Countries | 0 | - | 4.97 | 6,540,224 |
| Vatican City Country Quiz | 0 | - | 4.49 | 36,359 |
| World Map with 10 Random Extra Borders | 0 | - | 4.96 | 302,247 |
| Random Sequential Countries on the World Map | 0 | - | 5.00 | 431,087 |
| 2019 Year in Review | 0 | - | 4.41 | 31,605 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.89 | 43,854 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.95 | 67,463 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.60 | 33,584 |
| 2019 News Stories - Name the Country | 0 | - | 4.10 | 16,485 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,372,804 |
| Countries by Founding Story | 0 | - | 4.91 | 52,270 |
