| Independence from Whom | 0 | - | 4.99 | 209,614 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,695 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,981 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,870 |
| Recently Independent Countries | 0 | - | 4.98 | 157,952 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,444 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,076 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,784 |
| Countries by Former Name | 0 | - | 4.99 | 124,252 |
| Historical City to Country | 0 | - | 4.84 | 78,115 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,897,160 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,164 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,248 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,229 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,572 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,538 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,773 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,171 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,821 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,442 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,794 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,222 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,264 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,683 |
| Landlocked Countries | 0 | - | 4.99 | 413,343 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,174 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,216 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,562 |
| National Founders | 0 | - | 4.40 | 83,643 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,319 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,998 |
| Battle to Country | 0 | - | 4.91 | 52,496 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,521 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,030 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,664 |
| Island Countries | 0 | - | 4.99 | 707,507 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,465 |
| Himalayan Countries | 0 | - | 4.95 | 135,252 |
| Andean Countries | 0 | - | 4.94 | 82,771 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,181 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,124 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,851 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,558 |
| Danube Countries | 0 | - | 4.97 | 71,055 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,718 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,510 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,408 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,334 |
| European Landlocked Countries | 0 | - | 4.99 | 145,722 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,157 |
| Countries with the Most Species | 0 | - | 4.99 | 95,229 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,296 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,358 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,945 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,553 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,924 |
| Countries in the Alps | 0 | - | 4.86 | 116,777 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,529 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,196 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,987 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,396 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,121 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,974 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,538 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,728 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,143 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,028 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,185 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,026 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,423 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,715 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,728 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,008 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,617 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,240 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,740 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,123 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,550 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,578 |
| Largest Countries By Category | 0 | - | 4.97 | 156,708 |
| Countries by Countries | 0 | - | 4.96 | 62,233 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,429 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,552 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,335 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,954 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,113 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,729 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,105 |
| Northernmost Countries | 0 | - | 4.99 | 357,572 |
| Countries of South America | 0 | - | 5.00 | 914,244 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,850 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,325 |
| "Land" Countries | 0 | - | 4.98 | 333,567 |
| Countries by Independence Day | 0 | - | 4.56 | 52,596 |
| Former Countries by Capital | 0 | - | 4.45 | 127,029 |
| Former Countries | 0 | - | 4.75 | 132,667 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,739 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,203 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,843 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,196 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,343 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,207 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 129,607 |
| Communist Countries in History | 0 | - | 4.63 | 492,385 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,628 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,019 |
| Name a Valid African Country | 0 | - | 4.98 | 152,901 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,556 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,495 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,017 |
| Countries with Megacities | 0 | - | 4.99 | 246,577 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,947 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,817 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,386 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,763 |
| Countries by Official Language | 0 | - | 4.95 | 192,711 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,048 |
| Countries in their Native Language | 0 | - | 4.99 | 196,572 |
| Subdivisions by Country | 0 | - | 4.86 | 50,053 |
| Megadiverse Countries | 0 | - | 4.97 | 133,869 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,746 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,904 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,846 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,409 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,848 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,616 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,123 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,204 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,734 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,511 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,400 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,477 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,486 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,649 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,007 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,508 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,251 |
| World Map Quiz | 0 | - | 4.81 | 63,462 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,506 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,295 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,672 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,307 |
| Country Picture Puzzle Game #1 | 0 | - | 4.86 | 85,783 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,280 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,952 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,911 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,654 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,824 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,031 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,243 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,927 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,316 |
| Widest Countries East to West | 0 | - | 4.92 | 128,581 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,210 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,171 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,555 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,672 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,600 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,016 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,047 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,570 |
| Countries with Double Letters | 0 | - | 4.97 | 93,324 |
| Countries that End in N | 0 | - | 4.94 | 156,415 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,613 |
| Countries with Six Letters | 0 | - | 4.93 | 210,292 |
| Countries with W | 0 | - | 4.97 | 158,185 |
| Countries with Z | 0 | - | 4.98 | 287,799 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,506 |
| Countries That End in U | 0 | - | 4.95 | 119,491 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,483 |
| Countries that End in O | 0 | - | 4.92 | 158,530 |
| Countries that End in R | 0 | - | 4.87 | 118,250 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,848 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,959 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,284 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,461 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,975 |
| Countries That End in Y | 0 | - | 4.90 | 185,184 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,319 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,635 |
| Countries that End in I | 0 | - | 4.94 | 134,383 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,131 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,176 |
| Countries That End in NIA | 0 | - | 4.92 | 108,975 |
| Countries That End in BIA | 0 | - | 4.92 | 147,682 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,028 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,453 |
| Countries That End in RIA | 0 | - | 4.93 | 126,059 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,977 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,125 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,490 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,870 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,328 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,915 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,090 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,618 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,469 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,804 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,776 |
