| Communist Countries in History | 0 | - | 4.63 | 497,003 |
| Independence from Whom | 0 | - | 4.99 | 212,352 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,926 |
| Countries in World War I | 0 | - | 4.88 | 228,635 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,578 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,665 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,623 |
| Battle to Country | 0 | - | 4.91 | 53,647 |
| Recently Independent Countries | 0 | - | 4.98 | 159,604 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,433 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,039 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,551 |
| Countries by Former Name | 0 | - | 4.99 | 125,475 |
| Historical City to Country | 0 | - | 4.84 | 78,708 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,671,462 |
| Landlocked Countries | 0 | - | 4.99 | 423,099 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,013 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,608 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,358 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,003 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,388 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,696 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,512 |
| Countries in World War II | 0 | - | 4.54 | 915,925 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,846 |
| Countries with the Most Christians | 0 | - | 4.93 | 143,841 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,591 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,690 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,857 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,178 |
| Political Movements by Country | 0 | - | 4.46 | 72,658 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,786,531 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,998 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,050 |
| Himalayan Countries | 0 | - | 4.94 | 139,222 |
| Andean Countries | 0 | - | 4.93 | 84,889 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,108 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,246 |
| National Founders | 0 | - | 4.40 | 83,908 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,687 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,001 |
| Danube Countries | 0 | - | 4.97 | 72,141 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,203 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,551 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,545 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,061 |
| European Landlocked Countries | 0 | - | 4.99 | 147,286 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,848 |
| Countries with the Most Species | 0 | - | 4.99 | 103,354 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,975 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,650 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,769 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,625 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,372 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,793 |
| Countries in the Alps | 0 | - | 4.87 | 118,375 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,791 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,304 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,761 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,725 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,645 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,046 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,826 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,611 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,252 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,965 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,726 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,597 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,333 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,575 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,641 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,183 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,410 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,812 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,964 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,258 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,535 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,444 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,316 |
| Largest Countries By Category | 0 | - | 4.97 | 158,413 |
| Orthodox Countries | 0 | - | 4.92 | 132,415 |
| Countries by Countries | 0 | - | 4.96 | 63,367 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,170 |
| Monarchies of Europe | 0 | - | 4.90 | 98,487 |
| Monarchies of Asia | 0 | - | 4.97 | 71,315 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,861 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,328 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,799 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,099 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,151 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,590 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,866 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,041 |
| Island Countries | 0 | - | 4.99 | 711,447 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,386,487 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,306 |
| Northernmost Countries | 0 | - | 4.99 | 362,535 |
| Countries of South America | 0 | - | 5.00 | 928,923 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,867 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,880,819 |
| "Land" Countries | 0 | - | 4.98 | 337,650 |
| Countries by Independence Day | 0 | - | 4.62 | 52,805 |
| Former Countries by Capital | 0 | - | 4.45 | 127,662 |
| Former Countries | 0 | - | 4.77 | 134,003 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,420 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,035 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,929 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,077 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,510 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,478 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,408 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,564 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,034 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,421 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,236 |
| Countries with Megacities | 0 | - | 4.99 | 265,362 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,051 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,652 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,300 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,722 |
| Countries by Official Language | 0 | - | 4.95 | 195,483 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,695 |
| Countries in their Native Language | 0 | - | 4.99 | 199,258 |
| Subdivisions by Country | 0 | - | 4.87 | 50,485 |
| Megadiverse Countries | 0 | - | 4.96 | 135,102 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,290 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,421 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,298 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,142 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,277 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,420 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,711 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,185 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,924 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,956 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,275 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,016 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,372 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,434 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,553 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,567 |
| World Map Quiz | 0 | - | 4.81 | 65,262 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,865 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,460 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,325 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,421 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,127 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,605 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,020 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,131 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,404 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,501 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,656 |
| Widest Countries East to West | 0 | - | 4.92 | 129,758 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,481 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,559 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,392 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,847 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,710 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,979 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,417 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,822 |
| Countries with Double Letters | 0 | - | 4.96 | 96,496 |
| Countries that End in N | 0 | - | 4.95 | 171,391 |
| Countries with Five Letters | 0 | - | 4.96 | 282,951 |
| Countries with Six Letters | 0 | - | 4.94 | 213,828 |
| Countries with W | 0 | - | 4.96 | 160,520 |
| Countries with Z | 0 | - | 4.98 | 291,744 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,875 |
| Countries That End in U | 0 | - | 4.95 | 120,950 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,648 |
| Countries that End in O | 0 | - | 4.92 | 159,605 |
| Countries that End in R | 0 | - | 4.87 | 119,030 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,794 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,331 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,831 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,587 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,500 |
| Countries That End in Y | 0 | - | 4.91 | 185,948 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,070 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,994 |
| Countries that End in I | 0 | - | 4.94 | 135,173 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,258 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,885 |
| Countries That End in NIA | 0 | - | 4.92 | 109,861 |
| Countries That End in BIA | 0 | - | 4.93 | 149,311 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,224 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,529 |
| Countries That End in RIA | 0 | - | 4.93 | 126,886 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,128 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,910 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,857 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,287 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,842 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,644 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,120 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,471 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,634 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,499 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,113 |
