| Countries With No Rivers | 0 | - | 4.96 | 76,186 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,478 |
| Countries with Fjords | 0 | - | 4.93 | 100,423 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,988 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,399 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,183 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,406 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,816 |
| North Sea Countries | 0 | - | 4.92 | 86,748 |
| Black Sea Countries | 0 | - | 4.87 | 60,407 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,124 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,219 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,019 |
| Megadiverse Countries | 0 | - | 4.96 | 134,517 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,823 |
| African Great Lakes | 0 | - | 4.82 | 65,649 |
| Countries of Africa | 0 | - | 5.00 | 2,519,807 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,993 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,613 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,917 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,676 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,135,708 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,378 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,714 |
| Landlocked Countries | 0 | - | 4.99 | 416,304 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,738,108 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,832 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,426 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,553 |
| Biggest City by River | 0 | - | 4.41 | 52,745 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,400 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,673 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,515 |
| Island Countries | 0 | - | 4.99 | 708,698 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,772 |
| Himalayan Countries | 0 | - | 4.95 | 136,366 |
| Andean Countries | 0 | - | 4.95 | 83,406 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,669 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,895 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,360 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,965 |
| Danube Countries | 0 | - | 4.97 | 71,362 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,156 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,817 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,084 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,034 |
| European Landlocked Countries | 0 | - | 4.99 | 146,094 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,701 |
| Countries with the Most Species | 0 | - | 4.99 | 100,278 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,850 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,313 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,488 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,131 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,786 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,156 |
| Countries in the Alps | 0 | - | 4.86 | 117,288 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,870 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,812 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,232 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,706 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,768 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,222 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,948 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,971 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,771 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,304 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,339 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,189 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,694 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,966 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,974 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,641 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,868 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,404 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,190 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,796 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,482 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,792 |
| Largest Countries By Category | 0 | - | 4.97 | 157,209 |
| Countries by Countries | 0 | - | 4.96 | 62,562 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,601 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,054 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,913 |
| Northernmost Countries | 0 | - | 4.99 | 359,195 |
| Landforms by Country | 0 | - | 4.52 | 51,936 |
| Countries of South America | 0 | - | 5.00 | 919,195 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,046 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,522 |
| "Land" Countries | 0 | - | 4.98 | 334,387 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,974 |
| Seas of Europe | 0 | - | 4.37 | 84,462 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,402 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,711 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,176 |
| Countries with Megacities | 0 | - | 4.99 | 248,743 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,039 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,492 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,413 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,442 |
| Capitals by River | 0 | - | 4.55 | 48,263 |
| Countries by Official Language | 0 | - | 4.95 | 193,897 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,388 |
| Countries in their Native Language | 0 | - | 4.99 | 197,540 |
| Independence from Whom | 0 | - | 4.99 | 210,506 |
| Subdivisions by Country | 0 | - | 4.86 | 50,182 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,259 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,740 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,064 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,614 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,939 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,407 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,191 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,515 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,519 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,353 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,801 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,115 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,566 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,665 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,629 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,070 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 96,279 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,834 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,663 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,995 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,626 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,358 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,609 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,226 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,421 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,595 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,129 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,616 |
| Widest Countries East to West | 0 | - | 4.92 | 129,115 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,319 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,604 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,898 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,931 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,947 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,327 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,030 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,663 |
| One Country By Letter By Continent | 0 | - | 5.00 | 122,556 |
| Countries with Double Letters | 0 | - | 4.96 | 93,902 |
| Countries that End in N | 0 | - | 4.94 | 160,237 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,324 |
| Countries with Six Letters | 0 | - | 4.93 | 210,928 |
| Countries with W | 0 | - | 4.97 | 158,604 |
| Countries with Z | 0 | - | 4.98 | 288,526 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,904 |
| Countries That End in U | 0 | - | 4.95 | 119,747 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,064 |
| Countries that End in O | 0 | - | 4.92 | 158,750 |
| Countries that End in R | 0 | - | 4.87 | 118,444 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,986 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,626 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,674 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,760 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,325 |
| Countries That End in Y | 0 | - | 4.90 | 185,351 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,767 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,022 |
| Countries that End in I | 0 | - | 4.94 | 134,620 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,630 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,378 |
| Countries That End in NIA | 0 | - | 4.92 | 109,253 |
| Countries That End in BIA | 0 | - | 4.93 | 148,490 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,371 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,727 |
| Countries That End in RIA | 0 | - | 4.93 | 126,292 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,278 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,983 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,806 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,158 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,720 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,104 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,384 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,899 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,964 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,132 |
| Countries that End in L | 0 | - | 4.94 | 156,233 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,710 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,045 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,696 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,536 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,597 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,242 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,764 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,235 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,781 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,199 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,016 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,858 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,280 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,502 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,487 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,812,017 |
| One Border Countries | 0 | - | 4.98 | 466,231 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,094 |
| Sea in the Answers | 0 | - | 4.10 | 48,677 |
