| Communist Countries in History | 0 | - | 4.63 | 497,982 |
| Independence from Whom | 0 | - | 4.99 | 212,957 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,361 |
| Countries in World War I | 0 | - | 4.88 | 229,066 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,037 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,816 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,047 |
| Battle to Country | 0 | - | 4.91 | 53,910 |
| Recently Independent Countries | 0 | - | 4.98 | 160,267 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,882 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,646 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,044 |
| Countries by Former Name | 0 | - | 4.99 | 125,770 |
| Historical City to Country | 0 | - | 4.85 | 78,988 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,841,326 |
| Landlocked Countries | 0 | - | 4.99 | 425,160 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,340 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,840 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,492 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,164 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,493 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,841 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,727 |
| Countries in World War II | 0 | - | 4.53 | 918,336 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,043 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,573 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,671 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,039 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,284 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,500 |
| Political Movements by Country | 0 | - | 4.46 | 72,751 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,801,088 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,205 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,971 |
| Himalayan Countries | 0 | - | 4.93 | 140,011 |
| Andean Countries | 0 | - | 4.94 | 85,312 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,469 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,829 |
| National Founders | 0 | - | 4.40 | 83,962 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,038 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,330 |
| Danube Countries | 0 | - | 4.97 | 72,321 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,496 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,767 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,992 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,493 |
| European Landlocked Countries | 0 | - | 4.99 | 147,542 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,203 |
| Countries with the Most Species | 0 | - | 4.99 | 103,523 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,330 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,746 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,854 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,793 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,528 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,963 |
| Countries in the Alps | 0 | - | 4.87 | 118,690 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,492 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,759 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,923 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,971 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,886 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,196 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,332 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,813 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,381 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,128 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,826 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,699 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,506 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,737 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,834 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,703 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,565 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,708 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,342 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,601 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,482 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,016 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,477 |
| Largest Countries By Category | 0 | - | 4.97 | 158,778 |
| Orthodox Countries | 0 | - | 4.92 | 132,736 |
| Countries by Countries | 0 | - | 4.96 | 63,584 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,429 |
| Monarchies of Europe | 0 | - | 4.90 | 98,801 |
| Monarchies of Asia | 0 | - | 4.97 | 71,476 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,192 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,381 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,053 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,255 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,466 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,016 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,527 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,415 |
| Island Countries | 0 | - | 4.99 | 712,357 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,392,478 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,173 |
| Northernmost Countries | 0 | - | 4.99 | 363,749 |
| Countries of South America | 0 | - | 5.00 | 931,908 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,437 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,887,624 |
| "Land" Countries | 0 | - | 4.98 | 338,282 |
| Countries by Independence Day | 0 | - | 4.62 | 52,854 |
| Former Countries by Capital | 0 | - | 4.45 | 127,787 |
| Former Countries | 0 | - | 4.77 | 134,182 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,768 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,604 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,278 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,091 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,792 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,805 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,732 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,717 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,385 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,304 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,007 |
| Countries with Megacities | 0 | - | 4.99 | 266,843 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,729 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,035 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,040 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,161 |
| Countries by Official Language | 0 | - | 4.95 | 195,903 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,503 |
| Countries in their Native Language | 0 | - | 4.99 | 199,657 |
| Subdivisions by Country | 0 | - | 4.87 | 50,591 |
| Megadiverse Countries | 0 | - | 4.96 | 135,249 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,869 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,513 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,428 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,212 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,537 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,545 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,804 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,243 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,429 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,351 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,415 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,128 |
| Country by Photo of its Leader | 0 | - | 4.70 | 124,593 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,559 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,671 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,216 |
| World Map Quiz | 0 | - | 4.81 | 65,607 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,003 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,665 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,151 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,003 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,497 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,424 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,371 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,478 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,675 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,655 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,552 |
| Widest Countries East to West | 0 | - | 4.92 | 130,401 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,581 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,192 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,497 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,024 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,939 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,426 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,480 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,885 |
| Countries with Double Letters | 0 | - | 4.96 | 96,984 |
| Countries that End in N | 0 | - | 4.95 | 171,848 |
| Countries with Five Letters | 0 | - | 4.96 | 283,638 |
| Countries with Six Letters | 0 | - | 4.94 | 214,372 |
| Countries with W | 0 | - | 4.96 | 160,878 |
| Countries with Z | 0 | - | 4.98 | 292,338 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,235 |
| Countries That End in U | 0 | - | 4.95 | 121,153 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,037 |
| Countries that End in O | 0 | - | 4.92 | 160,178 |
| Countries that End in R | 0 | - | 4.87 | 119,155 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,910 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,759 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,102 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,781 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,714 |
| Countries That End in Y | 0 | - | 4.91 | 186,074 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,399 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,231 |
| Countries that End in I | 0 | - | 4.94 | 135,289 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,561 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,031 |
| Countries That End in NIA | 0 | - | 4.92 | 110,021 |
| Countries That End in BIA | 0 | - | 4.93 | 149,546 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,479 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,735 |
| Countries That End in RIA | 0 | - | 4.93 | 127,033 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,349 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,480 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,117 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,557 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,122 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,781 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,298 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,527 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,863 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,635 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,364 |
