| Countries in World War I | 0 | - | 4.88 | 227,364 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,195 |
| Battle to Country | 0 | - | 4.91 | 52,880 |
| Independence from Whom | 0 | - | 4.99 | 210,628 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,273 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,198 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,529 |
| Countries by Founding Story | 0 | - | 4.95 | 76,842 |
| Recently Independent Countries | 0 | - | 4.98 | 158,343 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,094 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,050 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,751 |
| Countries by Former Name | 0 | - | 4.99 | 124,644 |
| Historical City to Country | 0 | - | 4.84 | 78,307 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,142,384 |
| Countries in World War II | 0 | - | 4.54 | 908,122 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,747 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,643 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,512 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,869 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,746 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,004 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,513 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,075 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,215 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,359 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,452 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,247 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,151 |
| Political Movements by Country | 0 | - | 4.46 | 72,379 |
| Landlocked Countries | 0 | - | 4.99 | 416,388 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,738,627 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,885 |
| National Founders | 0 | - | 4.40 | 83,728 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,600 |
| Orthodox Countries | 0 | - | 4.92 | 130,879 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,393 |
| Monarchies of Europe | 0 | - | 4.90 | 97,671 |
| Monarchies of Asia | 0 | - | 4.97 | 70,813 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,610 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,050 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,606 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,717 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,573 |
| Island Countries | 0 | - | 4.99 | 708,731 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,806 |
| Himalayan Countries | 0 | - | 4.95 | 136,389 |
| Andean Countries | 0 | - | 4.95 | 83,426 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,692 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,916 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,376 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,980 |
| Danube Countries | 0 | - | 4.97 | 71,371 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,169 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,828 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,102 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,052 |
| European Landlocked Countries | 0 | - | 4.99 | 146,100 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,715 |
| Countries with the Most Species | 0 | - | 4.99 | 100,749 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,856 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,315 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,493 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,134 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,791 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,163 |
| Countries in the Alps | 0 | - | 4.86 | 117,296 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,875 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,828 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,234 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,715 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,785 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,227 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,957 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,974 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,783 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,311 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,341 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,194 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,700 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,393 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,972 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,986 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,658 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,873 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,406 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,207 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,845 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,500 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,799 |
| Largest Countries By Category | 0 | - | 4.97 | 157,218 |
| Countries by Countries | 0 | - | 4.96 | 62,566 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,014 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,742 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 119,147 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,427 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,800 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,846 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,070 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,406 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,060 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,006 |
| Northernmost Countries | 0 | - | 4.99 | 359,231 |
| Countries of South America | 0 | - | 5.00 | 919,313 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,181 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,787 |
| "Land" Countries | 0 | - | 4.98 | 334,462 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,601 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,455 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,672 |
| Countries by Independence Day | 0 | - | 4.61 | 52,670 |
| Former Countries by Capital | 0 | - | 4.45 | 127,231 |
| Former Countries | 0 | - | 4.75 | 132,947 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,187 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,590 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,430 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 81,695 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,495 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,738 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 80,944 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,391 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,521 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,742 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,200 |
| Countries with Megacities | 0 | - | 4.99 | 248,783 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,052 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,510 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,426 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,457 |
| Countries by Official Language | 0 | - | 4.95 | 193,930 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,426 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,822 |
| Countries in their Native Language | 0 | - | 4.99 | 197,554 |
| Subdivisions by Country | 0 | - | 4.86 | 50,187 |
| Megadiverse Countries | 0 | - | 4.96 | 134,519 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,758 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,070 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,615 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,942 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,415 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,524 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,355 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,802 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,122 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,570 |
| Hindu Countries | 0 | - | 4.86 | 49,804 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,670 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,632 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,836 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,185 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,459 |
| World Map Quiz | 0 | - | 4.81 | 64,024 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,219 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,667 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,912 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,141 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,013 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,635 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,369 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,623 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,229 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,428 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,601 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,132 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,621 |
| Widest Countries East to West | 0 | - | 4.92 | 129,120 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,320 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,616 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,901 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,936 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,956 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,333 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,046 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,663 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,222 |
| Countries with Double Letters | 0 | - | 4.96 | 93,967 |
| Countries that End in N | 0 | - | 4.94 | 162,685 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,396 |
| Countries with Six Letters | 0 | - | 4.93 | 210,988 |
| Countries with W | 0 | - | 4.97 | 158,672 |
| Countries with Z | 0 | - | 4.98 | 288,588 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,948 |
| Countries That End in U | 0 | - | 4.95 | 119,811 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,080 |
| Countries that End in O | 0 | - | 4.92 | 158,789 |
| Countries that End in R | 0 | - | 4.87 | 118,466 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,001 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,651 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,690 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,767 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,338 |
| Countries That End in Y | 0 | - | 4.90 | 185,375 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,781 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,038 |
| Countries that End in I | 0 | - | 4.94 | 134,632 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,650 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,382 |
| Countries That End in NIA | 0 | - | 4.92 | 109,264 |
| Countries That End in BIA | 0 | - | 4.93 | 148,506 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,387 |
