| Quiz | Points | Best | Rating | Takes |
|---|
| Countries of the World Quiz | 0 | - | 5.00 | 34,112,106 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 735,236 |
| Country Shape Quiz #2 | 0 | - | 4.94 | 343,411 |
| Country Shape Quiz #3 | 0 | - | 4.94 | 245,896 |
| Country Shape Quiz #4 | 0 | - | 4.90 | 179,826 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,165,801 |
| Biggest Countries by Area | 0 | - | 4.99 | 827,506 |
| Countries with the Highest Life Expectancy | 0 | - | 4.84 | 163,678 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.95 | 151,623 |
| Spanish-Speaking Countries Quiz | 0 | - | 4.91 | 295,061 |
| Island Countries Quiz | 0 | - | 4.99 | 576,272 |
| Northernmost Countries Quiz | 0 | - | 4.98 | 293,830 |
| Southernmost Countries of the World | 0 | - | 4.99 | 181,917 |
| Majority Muslim Countries | 0 | - | 4.96 | 281,255 |
| Countries with the Most Borders | 0 | - | 4.96 | 317,558 |
| Countries with the Longest Coastlines | 0 | - | 4.85 | 352,451 |
| Countries That Border Russia | 0 | - | 4.98 | 367,555 |
| Countries and Languages Quiz | 0 | - | 4.86 | 215,322 |
| Communist Countries in History | 0 | - | 4.47 | 382,741 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 255,202 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 286,348 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 172,299 |
| Countries by Borders #1 | 0 | - | 5.00 | 154,133 |
| Commonwealth of Nations Countries | 0 | - | 4.92 | 205,031 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 306,288 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 300,702 |
| Biggest US Cities by Decade | 0 | - | 4.92 | 132,725 |
| Former Capitals Quiz | 0 | - | 4.74 | 54,445 |
| One Border Countries | 0 | - | 4.98 | 358,451 |
| NATO Countries Quiz | 0 | - | 4.97 | 201,573 |
| EU Countries Quiz | 0 | - | 4.99 | 206,746 |
| Countries of Europe Quiz | 0 | - | 5.00 | 2,463,862 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,248,996 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 131,030 |
| Countries by Independence Day Quiz | 0 | - | 4.48 | 41,873 |
| Countries that Start with A | 0 | - | 4.96 | 1,627,110 |
| Countries that Start with B | 0 | - | 4.94 | 1,764,641 |
| Countries that Start with C | 0 | - | 4.95 | 1,398,276 |
| Countries that Start with D | 0 | - | 4.96 | 462,688 |
| Countries that Start with E | 0 | - | 4.93 | 1,031,141 |
| Countries that Start with G | 0 | - | 4.95 | 1,128,429 |
| Countries that Start with H | 0 | - | 4.92 | 389,825 |
| Countries that Start with I | 0 | - | 4.90 | 975,376 |
| Countries that Start with J | 0 | - | 4.96 | 393,118 |
| Countries that Start with K | 0 | - | 4.95 | 570,933 |
| Countries that Start with L | 0 | - | 4.98 | 812,184 |
| Countries that Start with N | 0 | - | 4.90 | 833,455 |
| Countries that Start with P | 0 | - | 4.94 | 921,148 |
| Countries that Start with R | 0 | - | 4.41 | 299,246 |
| Countries that Start with S | 0 | - | 4.97 | 1,354,599 |
| Countries that Start with T | 0 | - | 4.89 | 757,912 |
| Countries that Start with U | 0 | - | 4.97 | 683,808 |
| Countries that Start with V | 0 | - | 4.97 | 455,557 |
| Countries that Start with F | 0 | - | 4.76 | 423,168 |
| Countries that Start with M | 0 | - | 4.95 | 1,058,972 |
| Countries that Border China | 0 | - | 4.97 | 211,842 |
| Countries in World War II | 0 | - | 4.47 | 679,192 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 164,802 |
| Countries in World War I | 0 | - | 4.92 | 182,589 |
| Countries with Four Letters | 0 | - | 4.99 | 320,787 |
| Countries of Africa | 0 | - | 5.00 | 1,730,618 |
| Countries of South America | 0 | - | 5.00 | 621,927 |
| Countries of North America Quiz | 0 | - | 5.00 | 705,190 |
| Countries of Oceania | 0 | - | 5.00 | 711,369 |
| "Stan" Countries Quiz | 0 | - | 4.96 | 155,144 |
| Vietnam War Countries | 0 | - | 4.78 | 76,586 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 206,032 |
| Countries Bordering France | 0 | - | 4.90 | 308,789 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 199,275 |
| Countries Bordering Germany | 0 | - | 4.99 | 291,876 |
| Countries Bordering China Since 1914 | 0 | - | 4.94 | 70,055 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 252,837 |
| Countries "Ruled" by King Charles III | 0 | - | 4.73 | 64,985 |
| Countries of the Soviet Union | 0 | - | 4.99 | 145,970 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 91,913 |
| Countries by Clue #1 | 0 | - | 4.89 | 195,669 |
| Countries with Five Letters Quiz | 0 | - | 4.92 | 192,170 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 157,726 |
| Independence from Whom | 0 | - | 4.99 | 152,767 |
| Countries with Z | 0 | - | 4.99 | 222,839 |
| Holy Roman Empire Countries | 0 | - | 4.56 | 37,448 |
| Political Movements by Country | 0 | - | 4.49 | 61,878 |
| "Land" Countries | 0 | - | 4.98 | 264,622 |
| European Countries by Clue | 0 | - | 4.94 | 154,301 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.94 | 206,785 |
| Most Populous Countries in 2050 | 0 | - | 4.92 | 173,203 |
| Who Controlled These Colonies? | 0 | - | 4.73 | 100,496 |
| Countries with the Longest Total Borders | 0 | - | 4.98 | 246,450 |
| Most Populous Countries in 1900 | 0 | - | 4.86 | 146,887 |
| Warsaw Pact Countries | 0 | - | 4.90 | 64,514 |
| Inventions by Country #1 | 0 | - | 4.43 | 41,770 |
| Countries with the Most Forest | 0 | - | 4.89 | 125,644 |
| Most Populous Countries in 1950 | 0 | - | 4.64 | 63,288 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 88,909 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 156,218 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.51 | 31,587 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 181,389 |
| Historical City to Country | 0 | - | 4.81 | 66,320 |
| Countries of the Japanese Empire | 0 | - | 4.95 | 74,685 |
| Countries in the Ottoman Empire | 0 | - | 4.92 | 50,636 |
| Countries Closest to Canada | 0 | - | 4.93 | 156,334 |
| Countries Closest to Spain | 0 | - | 4.96 | 170,142 |
| Countries Settled by Vikings | 0 | - | 4.92 | 91,706 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 342,071 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 193,797 |
| WWII Geography | 0 | - | 4.73 | 88,498 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.94 | 4,321,036 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 128,826 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 162,870 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 168,529 |
| Countries with the Most HIV | 0 | - | 4.42 | 39,372 |
| Former Countries | 0 | - | 4.52 | 100,298 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 224,426 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 172,829 |
| Top 10 Solar Power Countries | 0 | - | 4.79 | 51,375 |
| 25 Biggest Cities of the Soviet Union | 0 | - | 4.92 | 59,109 |
| Guerrillas by Country | 0 | - | 4.42 | 34,839 |
| Country Chain | 0 | - | 4.92 | 156,517 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.83 | 995,868 |
| World Map without 12 Countries | 0 | - | 4.96 | 278,352 |
| Countries with Glaciers | 0 | - | 4.97 | 72,581 |
| Neutral European Countries of WWII | 0 | - | 4.95 | 110,583 |
| Every Country Shape | 0 | - | 4.99 | 312,831 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 2,874,401 |
| Top 50 Countries by Population - In Order | 0 | - | 4.96 | 217,302 |
| Countries with Megacities | 0 | - | 4.99 | 175,334 |
| Every European Country Shape | 0 | - | 4.94 | 152,329 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 165,032 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 169,924 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 168,012 |
| All Countries of the World by Area with Hints | 0 | - | 4.95 | 152,597 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 2,642,644 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.94 | 191,397 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 65,793 |
| One Country By Letter By Continent | 0 | - | 4.99 | 35,851 |
| Most Populous Countries by Year | 0 | - | 4.76 | 78,906 |
| Largest Countries with No Borders | 0 | - | 4.97 | 163,360 |
| Countries of Europe After World War II | 0 | - | 4.97 | 143,194 |
| Countries of Europe Before World War I | 0 | - | 5.00 | 112,066 |
| Shortest Country Name A-Z | 0 | - | 4.99 | 171,260 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.88 | 175,938 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.96 | 187,750 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 44,773 |
| Tropical Rainforest Countries | 0 | - | 4.47 | 64,180 |
| Countries by Change in Carbon Dioxide Emissions | 0 | - | 4.86 | 44,233 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 159,649 |
| Biggest Roman Empire Countries | 0 | - | 4.82 | 73,770 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 61,385 |
| Countries of Asia in 1900 | 0 | - | 4.43 | 47,879 |
| Northernmost Countries Without Glaciers | 0 | - | 4.72 | 16,463 |
| Biggest British Empire Countries | 0 | - | 4.43 | 55,467 |
| Biggest Spanish Empire Countries | 0 | - | 4.79 | 80,816 |
| Soviet Union Country Quiz | 0 | - | 4.78 | 56,362 |
| Most-Visited Countries by U.S. Presidents | 0 | - | 4.98 | 142,261 |
| Albert Einstein Quiz | 0 | - | 4.56 | 11,232 |
| Countries with the Most Malaria Deaths | 0 | - | 4.36 | 29,432 |
| Top 10 Most Forested Countries in Asia | 0 | - | 4.54 | 53,928 |
| Flags of the Countries that Start with A | 0 | - | 4.93 | 90,244 |
| Countries Most Affected by the 2004 Tsunami | 0 | - | 3.95 | 18,145 |
| Most Forested European Countries | 0 | - | 4.74 | 60,271 |
| Flags of the Countries that Start with C | 0 | - | 4.94 | 99,343 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.96 | 57,444 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.84 | 54,228 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.88 | 60,330 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 47,870 |
| First Countries to Reach 5 Million People | 0 | - | 4.91 | 98,880 |
| Countries with the Most Mangroves | 0 | - | 4.47 | 29,377 |
| Flags of the Countries that Start with I | 0 | - | 4.95 | 116,373 |
| Most-Visited Countries by Popes | 0 | - | 4.44 | 42,970 |
| Countries that Start with C - Shape Quiz | 0 | - | 4.71 | 61,578 |
| Countries that Start with I - Shape Quiz | 0 | - | 4.91 | 84,986 |
| 2017 News Stories - Name the Country | 0 | - | 4.48 | 23,968 |
| Countries that Start with N - Shape Quiz | 0 | - | 4.92 | 61,917 |
| Countries that Start with P - Shape Quiz | 0 | - | 4.82 | 61,424 |
| Countries by Emojis | 0 | - | 4.99 | 158,105 |
| Countries in Random Squares of the World Map | 0 | - | 4.99 | 247,375 |
| Country by Photo of its Leader #1 | 0 | - | 4.73 | 80,566 |
| Roman Provinces on a Map | 0 | - | 4.72 | 25,600 |
| Countries of the World in 1900 | 0 | - | 4.87 | 52,239 |
| Random Flag to Country | 0 | - | 4.99 | 387,189 |
| Countries with the Most Forest A-Z | 0 | - | 4.49 | 45,563 |
| Name a Valid Country #1 | 0 | - | 4.99 | 171,998 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.46 | 33,970 |
| Worst Plastic Polluting Countries | 0 | - | 4.46 | 53,389 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 146,593 |
| Name a Valid Country #2 | 0 | - | 4.97 | 150,544 |
| Name a Valid Country #3 | 0 | - | 4.98 | 161,695 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,092,319 |
| Countries of the German Empire | 0 | - | 4.36 | 26,606 |
| Countries in the Byzantine Empire | 0 | - | 4.88 | 49,182 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 239,611 |
| Countries of Europe in 1444 | 0 | - | 4.94 | 72,671 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 174,097 |
| Name a Valid European Country #1 | 0 | - | 4.98 | 158,733 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 92,761 |
| Category Elimination - Countries #3 | 0 | - | 4.98 | 166,888 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 105,307 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 74,167 |
| Battle to Country | 0 | - | 4.89 | 30,536 |
| Countries of the Italian Empire | 0 | - | 4.19 | 19,892 |
