| Countries With No Rivers | 0 | - | 4.96 | 76,709 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,769 |
| Countries with Fjords | 0 | - | 4.94 | 100,794 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,371 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,629 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,340 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,611 |
| Megadiverse Countries | 0 | - | 4.96 | 134,780 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,986 |
| North Sea Countries | 0 | - | 4.92 | 87,312 |
| Black Sea Countries | 0 | - | 4.87 | 60,579 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,326 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,423 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,192 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,537 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,754 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,445 |
| African Great Lakes | 0 | - | 4.82 | 66,069 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,334 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,970 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,019 |
| Biggest City by River | 0 | - | 4.41 | 52,828 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,344,797 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,362 |
| Landlocked Countries | 0 | - | 4.99 | 419,118 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,492 |
| Capitals by River | 0 | - | 4.55 | 48,292 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,757,715 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,052 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,118 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,054 |
| Himalayan Countries | 0 | - | 4.94 | 137,497 |
| Andean Countries | 0 | - | 4.95 | 83,974 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,249 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,710 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,863 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,372 |
| Danube Countries | 0 | - | 4.97 | 71,682 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,581 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,070 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,684 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,754 |
| European Landlocked Countries | 0 | - | 4.99 | 146,793 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,159 |
| Countries with the Most Species | 0 | - | 4.99 | 102,926 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,293 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,436 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,597 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,319 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,001 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,373 |
| Countries in the Alps | 0 | - | 4.87 | 117,709 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,152 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,396 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,431 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,014 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,118 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,695 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,301 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,203 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,975 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,571 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,495 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,344 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,945 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,201 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,223 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,218 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,076 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,582 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,551 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,456 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,264 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,011 |
| Largest Countries By Category | 0 | - | 4.97 | 157,663 |
| Countries by Countries | 0 | - | 4.96 | 62,853 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,337 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,295 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,846 |
| Rivers of the United States | 0 | - | 4.93 | 66,084 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,708 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,125 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,649 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,180 |
| Island Countries | 0 | - | 4.99 | 709,827 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,376,028 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,213 |
| Northernmost Countries | 0 | - | 4.99 | 360,549 |
| Countries of South America | 0 | - | 5.00 | 923,098 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,305 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,805 |
| "Land" Countries | 0 | - | 4.98 | 335,828 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,502 |
| Landforms by Country | 0 | - | 4.52 | 51,961 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,041 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,517 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,788 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,076 |
| Countries with Megacities | 0 | - | 4.99 | 260,811 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,932 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,017 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,206 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,034 |
| Countries by Official Language | 0 | - | 4.95 | 194,659 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,573 |
| Countries in their Native Language | 0 | - | 4.99 | 198,214 |
| Independence from Whom | 0 | - | 4.99 | 211,349 |
| Subdivisions by Country | 0 | - | 4.86 | 50,294 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,736 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,564 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,191 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,762 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,022 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,727 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,390 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,001 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,851 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,492 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,996 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,025 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,726 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,003 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,789 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,163 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,332 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,236 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,046 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,534 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,940 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,658 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,363 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,533 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,687 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,841 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,273 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,297 |
| Widest Countries East to West | 0 | - | 4.92 | 129,390 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,387 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,971 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,998 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,522 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,233 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,562 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,242 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,729 |
| Countries with Double Letters | 0 | - | 4.97 | 95,117 |
| Countries that End in N | 0 | - | 4.95 | 170,039 |
| Countries with Five Letters | 0 | - | 4.96 | 280,376 |
| Countries with Six Letters | 0 | - | 4.94 | 212,516 |
| Countries with W | 0 | - | 4.97 | 159,535 |
| Countries with Z | 0 | - | 4.98 | 289,840 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,765 |
| Countries That End in U | 0 | - | 4.95 | 120,420 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,774 |
| Countries that End in O | 0 | - | 4.92 | 159,208 |
| Countries that End in R | 0 | - | 4.87 | 118,739 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,518 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,358 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,130 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,095 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,679 |
| Countries That End in Y | 0 | - | 4.90 | 185,653 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,247 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,445 |
| Countries that End in I | 0 | - | 4.94 | 134,877 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,107 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,584 |
| Countries That End in NIA | 0 | - | 4.92 | 109,523 |
| Countries That End in BIA | 0 | - | 4.93 | 148,858 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,741 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,073 |
| Countries That End in RIA | 0 | - | 4.93 | 126,547 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,648 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,739 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,255 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,619 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,139 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,339 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,692 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,252 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,142 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,207 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,557 |
| Countries that End in L | 0 | - | 4.94 | 156,547 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,083 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,157 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,844 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,732 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,788 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,809 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,191 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,644 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,150 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,629 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,596 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,964 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,605 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,676 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,823,206 |
| One Border Countries | 0 | - | 4.98 | 467,771 |
