| North Sea Countries | 0 | - | 4.92 | 86,715 |
| Black Sea Countries | 0 | - | 4.87 | 60,390 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,180 |
| Countries With No Rivers | 0 | - | 4.96 | 76,146 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,848 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,007 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,464 |
| Countries with Fjords | 0 | - | 4.93 | 100,375 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,023 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,936 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,365 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,387 |
| Megadiverse Countries | 0 | - | 4.96 | 134,479 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,398 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,701 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,929 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,567 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,631 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,083,430 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,158 |
| Landlocked Countries | 0 | - | 4.99 | 415,656 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,373 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,733,295 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,665 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,432 |
| Himalayan Countries | 0 | - | 4.95 | 136,081 |
| Andean Countries | 0 | - | 4.95 | 83,227 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,546 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,708 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,230 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,875 |
| Danube Countries | 0 | - | 4.97 | 71,290 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,046 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,743 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,932 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,877 |
| European Landlocked Countries | 0 | - | 4.99 | 146,000 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,585 |
| Countries with the Most Species | 0 | - | 4.99 | 95,362 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,711 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,282 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,449 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,086 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,738 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,104 |
| Countries in the Alps | 0 | - | 4.86 | 117,165 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,792 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,655 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,176 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,613 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,419 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,168 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,840 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,916 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,717 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,233 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,287 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,155 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,643 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,908 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,916 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,525 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,819 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,363 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,081 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,437 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,292 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,748 |
| Largest Countries By Category | 0 | - | 4.97 | 157,088 |
| Countries by Countries | 0 | - | 4.96 | 62,471 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,990 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,789 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,354 |
| Seas on the World Map | 0 | - | 4.96 | 134,601 |
| Seas of the World | 0 | - | 5.00 | 155,097 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,570 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,084 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,011 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,952 |
| Island Countries | 0 | - | 4.99 | 708,449 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,928 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,144 |
| Northernmost Countries | 0 | - | 4.99 | 358,865 |
| Countries of South America | 0 | - | 5.00 | 918,286 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,881 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,855,401 |
| "Land" Countries | 0 | - | 4.98 | 334,171 |
| Biggest City by River | 0 | - | 4.41 | 52,732 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,379 |
| Landforms by Country | 0 | - | 4.52 | 51,931 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,957 |
| African Great Lakes | 0 | - | 4.82 | 65,544 |
| Seas of Europe | 0 | - | 4.37 | 84,440 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,419 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,493 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,993 |
| Countries with Megacities | 0 | - | 4.99 | 248,388 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,888 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,402 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,276 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,340 |
| Countries by Official Language | 0 | - | 4.95 | 193,351 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,899 |
| Countries in their Native Language | 0 | - | 4.99 | 197,138 |
| Independence from Whom | 0 | - | 4.99 | 210,244 |
| Subdivisions by Country | 0 | - | 4.86 | 50,156 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,129 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,311 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,030 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,563 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,922 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,922 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,151 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,398 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,473 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,316 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,790 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,998 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,533 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,640 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,606 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,813 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,137 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,227 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,625 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,853 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,566 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,286 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,439 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,150 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,354 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,541 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,095 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,561 |
| Widest Countries East to West | 0 | - | 4.92 | 129,052 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,297 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,531 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,663 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,889 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,875 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,266 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,860 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,650 |
| Countries with Double Letters | 0 | - | 4.96 | 93,751 |
| Countries that End in N | 0 | - | 4.94 | 157,189 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,118 |
| Countries with Six Letters | 0 | - | 4.93 | 210,778 |
| Countries with W | 0 | - | 4.97 | 158,464 |
| Countries with Z | 0 | - | 4.98 | 288,325 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,812 |
| Countries That End in U | 0 | - | 4.95 | 119,634 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,933 |
| Countries that End in O | 0 | - | 4.92 | 158,677 |
| Countries that End in R | 0 | - | 4.87 | 118,395 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,947 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,486 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,593 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,692 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,248 |
| Countries That End in Y | 0 | - | 4.90 | 185,304 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,666 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,949 |
| Countries that End in I | 0 | - | 4.94 | 134,567 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,538 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,332 |
| Countries That End in NIA | 0 | - | 4.92 | 109,160 |
| Countries That End in BIA | 0 | - | 4.92 | 147,958 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,302 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,668 |
| Countries That End in RIA | 0 | - | 4.93 | 126,221 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,211 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,819 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,724 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,069 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,634 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,051 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,322 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,829 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,730 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,919 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,043 |
| Countries that End in L | 0 | - | 4.94 | 156,181 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,344 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,028 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,653 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,488 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,550 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,091 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,690 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,956 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,707 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,111 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,963 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,838 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,256 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,474 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,446 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,809,513 |
| One Border Countries | 0 | - | 4.98 | 465,899 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,598,865 |
