| Country by Photo of its Leader | 0 | - | 4.74 | 123,596 |
| Independence from Whom | 0 | - | 4.99 | 210,733 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,286 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,203 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,543 |
| National Founders | 0 | - | 4.40 | 83,732 |
| Recently Independent Countries | 0 | - | 4.98 | 158,352 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,105 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,064 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,770 |
| Countries by Former Name | 0 | - | 4.99 | 124,647 |
| Historical City to Country | 0 | - | 4.84 | 78,309 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,147,324 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,194 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,759 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,647 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,517 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,874 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,751 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,006 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,518 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,081 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,361 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,155 |
| Political Movements by Country | 0 | - | 4.46 | 72,382 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,444 |
| Landlocked Countries | 0 | - | 4.99 | 416,457 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,739,170 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,888 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,903 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,398 |
| Battle to Country | 0 | - | 4.91 | 52,885 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,655 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,748 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,616 |
| Island Countries | 0 | - | 4.99 | 708,745 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,836 |
| Himalayan Countries | 0 | - | 4.95 | 136,421 |
| Andean Countries | 0 | - | 4.95 | 83,440 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,710 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,931 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,389 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,992 |
| Danube Countries | 0 | - | 4.97 | 71,377 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,184 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,836 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,117 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,071 |
| European Landlocked Countries | 0 | - | 4.99 | 146,109 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,725 |
| Countries with the Most Species | 0 | - | 4.99 | 101,075 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,865 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,317 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,499 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,134 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,795 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,167 |
| Countries in the Alps | 0 | - | 4.86 | 117,303 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,879 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,845 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,238 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,722 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,798 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,233 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,961 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,983 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,787 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,317 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,347 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,196 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,706 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,399 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,981 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,991 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,669 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,878 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,416 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,669 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,153 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,213 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,890 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,515 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,810 |
| Largest Countries By Category | 0 | - | 4.97 | 157,224 |
| Countries by Countries | 0 | - | 4.96 | 62,577 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,031 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,747 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 119,217 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,924 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,852 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,074 |
| Communist Countries in History | 0 | - | 4.63 | 493,817 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,066 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,092 |
| Northernmost Countries | 0 | - | 4.99 | 359,265 |
| Countries of South America | 0 | - | 5.00 | 919,375 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,283 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,929 |
| "Land" Countries | 0 | - | 4.98 | 334,526 |
| Countries by Independence Day | 0 | - | 4.61 | 52,670 |
| Former Countries by Capital | 0 | - | 4.45 | 127,233 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,035 |
| Former Countries | 0 | - | 4.75 | 132,953 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,434 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,628 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,857 |
| Country Picture Puzzle Game #1 | 0 | - | 4.86 | 85,954 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,500 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,743 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,953 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,395 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,672,977 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,629 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,764 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,221 |
| Countries with Megacities | 0 | - | 4.99 | 248,823 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,071 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,519 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,441 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,469 |
| Countries by Official Language | 0 | - | 4.95 | 193,957 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,459 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,825 |
| Countries in their Native Language | 0 | - | 4.99 | 197,584 |
| Subdivisions by Country | 0 | - | 4.86 | 50,188 |
| Countries in World War I | 0 | - | 4.88 | 227,376 |
| Megadiverse Countries | 0 | - | 4.96 | 134,522 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,212 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,785 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,072 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,619 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,943 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,421 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,530 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,360 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,803 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,131 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,573 |
| Hindu Countries | 0 | - | 4.86 | 49,808 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,677 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,633 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,843 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,193 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,477 |
| World Map Quiz | 0 | - | 4.81 | 64,047 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,668 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,146 |
| Countries in a JetPunk Fish of the World Map | 0 | - | 4.99 | 60,016 |
| Countries in a Blue JetPunk Fish of the World Map | 0 | - | 4.92 | 71,611 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,020 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,644 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,375 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,649 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,239 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,438 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,605 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,135 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,624 |
| Widest Countries East to West | 0 | - | 4.92 | 129,124 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,322 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,622 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,904 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,938 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,959 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,337 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,066 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,665 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,227 |
| Countries with Double Letters | 0 | - | 4.96 | 94,029 |
| Countries that End in N | 0 | - | 4.95 | 164,214 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,463 |
| Countries with Six Letters | 0 | - | 4.93 | 211,037 |
| Countries with W | 0 | - | 4.97 | 158,735 |
| Countries with Z | 0 | - | 4.98 | 288,650 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,972 |
| Countries That End in U | 0 | - | 4.95 | 119,856 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,100 |
| Countries that End in O | 0 | - | 4.92 | 158,815 |
| Countries that End in R | 0 | - | 4.87 | 118,478 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,009 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,676 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,704 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,784 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,347 |
| Countries That End in Y | 0 | - | 4.90 | 185,389 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,792 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,053 |
| Countries that End in I | 0 | - | 4.94 | 134,642 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,658 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,388 |
| Countries That End in NIA | 0 | - | 4.92 | 109,275 |
| Countries That End in BIA | 0 | - | 4.93 | 148,525 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,401 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,744 |
| Countries That End in RIA | 0 | - | 4.93 | 126,315 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,301 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,029 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,825 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,168 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,739 |
