| Country by Photo of its Leader | 0 | - | 4.74 | 123,599 |
| Independence from Whom | 0 | - | 4.99 | 210,750 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,288 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,204 |
| 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 | 158,354 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,106 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,066 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,773 |
| Countries by Former Name | 0 | - | 4.99 | 124,647 |
| Historical City to Country | 0 | - | 4.84 | 78,310 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,148,009 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,195 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,760 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,647 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,518 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,874 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,752 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,006 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,519 |
| 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 | 99,156 |
| Political Movements by Country | 0 | - | 4.46 | 72,382 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,444 |
| Landlocked Countries | 0 | - | 4.99 | 416,468 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,739,231 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,888 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,908 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,399 |
| Battle to Country | 0 | - | 4.91 | 52,886 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,661 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,755 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,627 |
| Island Countries | 0 | - | 4.99 | 708,746 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,842 |
| Himalayan Countries | 0 | - | 4.95 | 136,424 |
| Andean Countries | 0 | - | 4.95 | 83,442 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,713 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,939 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,391 |
| 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 | 85,838 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,118 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,074 |
| European Landlocked Countries | 0 | - | 4.99 | 146,112 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,727 |
| Countries with the Most Species | 0 | - | 4.99 | 101,109 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,866 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,317 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,500 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,137 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,795 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,168 |
| Countries in the Alps | 0 | - | 4.86 | 117,306 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,879 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,847 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,239 |
| 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 | 95,234 |
| 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 | 57,789 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,317 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,348 |
| 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 | 76,992 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,669 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,879 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,416 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,670 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,154 |
| 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 | 240,896 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,520 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,810 |
| Largest Countries By Category | 0 | - | 4.97 | 157,226 |
| Countries by Countries | 0 | - | 4.96 | 62,577 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,033 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,748 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 119,227 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,949 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,852 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,075 |
| Communist Countries in History | 0 | - | 4.63 | 493,824 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,067 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,110 |
| Northernmost Countries | 0 | - | 4.99 | 359,268 |
| Countries of South America | 0 | - | 5.00 | 919,397 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,302 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,968 |
| "Land" Countries | 0 | - | 4.98 | 334,529 |
| Countries by Independence Day | 0 | - | 4.61 | 52,671 |
| Former Countries by Capital | 0 | - | 4.45 | 127,233 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,035 |
| Former Countries | 0 | - | 4.75 | 132,955 |
| 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 | 85,955 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,501 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,749 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,953 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,396 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,673,026 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,637 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,766 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,225 |
| Countries with Megacities | 0 | - | 4.99 | 248,834 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,073 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,519 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,443 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,470 |
| Countries by Official Language | 0 | - | 4.95 | 193,960 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,465 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,827 |
| Countries in their Native Language | 0 | - | 4.99 | 197,587 |
| Subdivisions by Country | 0 | - | 4.86 | 50,188 |
| Countries in World War I | 0 | - | 4.88 | 227,377 |
| Megadiverse Countries | 0 | - | 4.96 | 134,522 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,215 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,789 |
| 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 | 153,532 |
| 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 | 76,133 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,574 |
| Hindu Countries | 0 | - | 4.86 | 49,808 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,678 |
| 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 | 109,481 |
| World Map Quiz | 0 | - | 4.81 | 64,051 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,670 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,148 |
| 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 | 227,024 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,645 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,375 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,651 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,241 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,438 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,607 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,137 |
| 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 | 93,939 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,960 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,337 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,068 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,666 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,228 |
| Countries with Double Letters | 0 | - | 4.96 | 94,040 |
| Countries that End in N | 0 | - | 4.95 | 164,323 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,468 |
| Countries with Six Letters | 0 | - | 4.93 | 211,041 |
| Countries with W | 0 | - | 4.97 | 158,739 |
| Countries with Z | 0 | - | 4.98 | 288,652 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,976 |
| Countries That End in U | 0 | - | 4.95 | 119,862 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,105 |
| Countries that End in O | 0 | - | 4.92 | 158,819 |
| Countries that End in R | 0 | - | 4.87 | 118,479 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,015 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,678 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,705 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,785 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,349 |
| Countries That End in Y | 0 | - | 4.90 | 185,390 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,793 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,053 |
| Countries that End in I | 0 | - | 4.94 | 134,643 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,660 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,389 |
| Countries That End in NIA | 0 | - | 4.92 | 109,275 |
| Countries That End in BIA | 0 | - | 4.93 | 148,528 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,402 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,745 |
| Countries That End in RIA | 0 | - | 4.93 | 126,315 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,302 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,032 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,831 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,170 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,744 |
