| Countries With No Rivers | 0 | - | 4.96 | 76,188 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,484 |
| Countries with Fjords | 0 | - | 4.93 | 100,432 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,999 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,407 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,184 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,411 |
| Megadiverse Countries | 0 | - | 4.96 | 134,522 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,824 |
| North Sea Countries | 0 | - | 4.92 | 86,752 |
| Black Sea Countries | 0 | - | 4.87 | 60,409 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,127 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,224 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,019 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,465 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,846 |
| African Great Lakes | 0 | - | 4.82 | 65,668 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,006 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,626 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,684 |
| Biggest City by River | 0 | - | 4.41 | 52,747 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,147,914 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,102 |
| Landlocked Countries | 0 | - | 4.99 | 416,467 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,378 |
| Capitals by River | 0 | - | 4.55 | 48,264 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,739,222 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,729 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,936 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,842 |
| Himalayan Countries | 0 | - | 4.95 | 136,424 |
| Andean Countries | 0 | - | 4.95 | 83,441 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,713 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,938 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,391 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,992 |
| Danube Countries | 0 | - | 4.97 | 71,377 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,184 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,837 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,118 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,074 |
| European Landlocked Countries | 0 | - | 4.99 | 146,112 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,727 |
| Countries with the Most Species | 0 | - | 4.99 | 101,105 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,866 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,317 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,500 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,137 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,795 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,168 |
| Countries in the Alps | 0 | - | 4.86 | 117,306 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,879 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,847 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,238 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,722 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,798 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,234 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,961 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,983 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,787 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,317 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,348 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,196 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,706 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,981 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,992 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,669 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,879 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,416 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,213 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,896 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,518 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,810 |
| Largest Countries By Category | 0 | - | 4.97 | 157,226 |
| Countries by Countries | 0 | - | 4.96 | 62,577 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,066 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,838 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,438 |
| Rivers of the United States | 0 | - | 4.93 | 65,806 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,587 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,660 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,754 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,624 |
| Island Countries | 0 | - | 4.99 | 708,745 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,946 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,107 |
| Northernmost Countries | 0 | - | 4.99 | 359,267 |
| Countries of South America | 0 | - | 5.00 | 919,393 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,301 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,955 |
| "Land" Countries | 0 | - | 4.98 | 334,529 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,401 |
| Landforms by Country | 0 | - | 4.52 | 51,936 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,982 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,636 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,765 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,223 |
| Countries with Megacities | 0 | - | 4.99 | 248,832 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,073 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,519 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,443 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,470 |
| Countries by Official Language | 0 | - | 4.95 | 193,960 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,465 |
| Countries in their Native Language | 0 | - | 4.99 | 197,587 |
| Independence from Whom | 0 | - | 4.99 | 210,750 |
| Subdivisions by Country | 0 | - | 4.86 | 50,188 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,288 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,788 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,072 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,619 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,943 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,421 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,204 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,543 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,532 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,360 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,803 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,132 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,574 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,678 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,633 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,843 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,193 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,481 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,670 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,022 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,645 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,375 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,651 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,240 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,438 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,606 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,136 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,624 |
| Widest Countries East to West | 0 | - | 4.92 | 129,124 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,322 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,622 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,904 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,939 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,959 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,337 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,068 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,666 |
| Countries with Double Letters | 0 | - | 4.96 | 94,040 |
| Countries that End in N | 0 | - | 4.95 | 164,308 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,468 |
| Countries with Six Letters | 0 | - | 4.93 | 211,040 |
| Countries with W | 0 | - | 4.97 | 158,739 |
| Countries with Z | 0 | - | 4.98 | 288,652 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,976 |
| Countries That End in U | 0 | - | 4.95 | 119,862 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,104 |
| Countries that End in O | 0 | - | 4.92 | 158,819 |
| Countries that End in R | 0 | - | 4.87 | 118,478 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,014 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,678 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,705 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,785 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,349 |
| Countries That End in Y | 0 | - | 4.90 | 185,389 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,793 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,053 |
| Countries that End in I | 0 | - | 4.94 | 134,643 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,659 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,389 |
| Countries That End in NIA | 0 | - | 4.92 | 109,275 |
| Countries That End in BIA | 0 | - | 4.93 | 148,527 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,402 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,745 |
| Countries That End in RIA | 0 | - | 4.93 | 126,315 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,302 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,031 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,829 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,169 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,743 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,127 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,416 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,922 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,814 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,984 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,166 |
| Countries that End in L | 0 | - | 4.94 | 156,266 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,783 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,056 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,702 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,548 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,607 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,276 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,785 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,279 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,796 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,218 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,028 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,864 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,283 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,506 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,497 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,812,641 |
| One Border Countries | 0 | - | 4.98 | 466,312 |
