| Country by Photo of its Leader | 0 | - | 4.70 | 124,782 |
| Independence from Whom | 0 | - | 4.99 | 213,543 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,757 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,962 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,379 |
| National Founders | 0 | - | 4.40 | 84,006 |
| Recently Independent Countries | 0 | - | 4.98 | 160,585 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,282 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,219 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,609 |
| Countries by Former Name | 0 | - | 4.99 | 126,038 |
| Historical City to Country | 0 | - | 4.85 | 79,122 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,008,198 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,748 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,731 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,071 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,647 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,322 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,593 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,957 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,914 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,217 |
| Warsaw Pact Countries | 0 | - | 4.83 | 85,018 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,848 |
| Political Movements by Country | 0 | - | 4.46 | 72,850 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,258 |
| Landlocked Countries | 0 | - | 4.99 | 427,724 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,815,736 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,417 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,609 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,647 |
| Battle to Country | 0 | - | 4.91 | 54,161 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,061 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,187 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,650 |
| Island Countries | 0 | - | 4.99 | 713,214 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,138 |
| Himalayan Countries | 0 | - | 4.93 | 141,024 |
| Andean Countries | 0 | - | 4.94 | 85,901 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 65,017 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,636 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,561 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,763 |
| Danube Countries | 0 | - | 4.97 | 72,609 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,876 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,026 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,535 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 151,018 |
| European Landlocked Countries | 0 | - | 4.99 | 147,823 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,609 |
| Countries with the Most Species | 0 | - | 4.99 | 103,672 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,715 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,834 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,976 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,963 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,709 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,178 |
| Countries in the Alps | 0 | - | 4.87 | 119,052 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,129 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,258 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,092 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,222 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,193 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,427 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,646 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,036 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,540 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,353 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,980 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,852 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,709 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,181 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,964 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,065 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,263 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,769 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,791 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,212 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,261 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,907 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,577 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,636 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,643 |
| Largest Countries By Category | 0 | - | 4.97 | 159,195 |
| Countries by Countries | 0 | - | 4.97 | 63,857 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,070 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,538 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,893 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,543 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,524 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,460 |
| Communist Countries in History | 0 | - | 4.63 | 498,940 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,291 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,744 |
| Northernmost Countries | 0 | - | 4.99 | 364,846 |
| Countries of South America | 0 | - | 5.00 | 934,939 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,314 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,713 |
| "Land" Countries | 0 | - | 4.98 | 339,176 |
| Countries by Independence Day | 0 | - | 4.62 | 52,888 |
| Former Countries by Capital | 0 | - | 4.45 | 127,916 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,717 |
| Former Countries | 0 | - | 4.77 | 134,351 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 73,141 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,748 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,807 |
| Country Picture Puzzle Game #1 | 0 | - | 4.86 | 86,985 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,181 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,482 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,861 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,447 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,733,150 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,859 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,212 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,660 |
| Countries with Megacities | 0 | - | 4.99 | 268,187 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,302 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,412 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,641 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,530 |
| Countries by Official Language | 0 | - | 4.95 | 196,335 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,090 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,672 |
| Countries in their Native Language | 0 | - | 4.99 | 200,045 |
| Subdivisions by Country | 0 | - | 4.87 | 50,682 |
| Countries in World War I | 0 | - | 4.88 | 229,528 |
| Megadiverse Countries | 0 | - | 4.96 | 149,783 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,849 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,221 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,596 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,852 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,273 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,551 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,658 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,215 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,299 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,899 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,520 |
| Hindu Countries | 0 | - | 4.86 | 50,708 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,532 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,250 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,673 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 72,015 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,899 |
| World Map Quiz | 0 | - | 4.81 | 65,984 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,864 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 105,060 |
| Countries in a JetPunk Fish of the World Map | 0 | - | 4.99 | 60,780 |
| Countries in a Blue JetPunk Fish of the World Map | 0 | - | 4.92 | 72,479 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,636 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,293 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,764 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,073 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,618 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,737 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,906 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,788 |
| Tallest Countries North to South | 0 | - | 4.85 | 131,017 |
| Widest Countries East to West | 0 | - | 4.92 | 130,908 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,637 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,473 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,587 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,197 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,495 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,654 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,547 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,934 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 55,045 |
| Countries with Double Letters | 0 | - | 4.96 | 97,784 |
| Countries that End in N | 0 | - | 4.95 | 172,783 |
| Countries with Five Letters | 0 | - | 4.96 | 284,841 |
| Countries with Six Letters | 0 | - | 4.94 | 215,118 |
| Countries with W | 0 | - | 4.96 | 161,425 |
| Countries with Z | 0 | - | 4.98 | 293,178 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,800 |
| Countries That End in U | 0 | - | 4.95 | 121,457 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,550 |
| Countries that End in O | 0 | - | 4.92 | 160,424 |
| Countries that End in R | 0 | - | 4.87 | 119,316 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,088 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,267 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,661 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,302 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,976 |
| Countries That End in Y | 0 | - | 4.91 | 186,206 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,523 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,484 |
| Countries that End in I | 0 | - | 4.94 | 135,462 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,455 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,182 |
| Countries That End in NIA | 0 | - | 4.92 | 110,194 |
| Countries That End in BIA | 0 | - | 4.93 | 149,788 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 168,004 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,952 |
| Countries That End in RIA | 0 | - | 4.93 | 127,197 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,595 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,074 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,467 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 126,926 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,486 |
