| Countries with the Longest Coastlines | 0 | - | 4.81 | 413,120 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,030 |
| North Sea Countries | 0 | - | 4.92 | 87,403 |
| Black Sea Countries | 0 | - | 4.87 | 60,611 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,391 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,492 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,535 |
| Countries With No Rivers | 0 | - | 4.96 | 76,827 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,238 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,844 |
| Countries with Fjords | 0 | - | 4.94 | 100,913 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,902 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,715 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,422 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,675 |
| Megadiverse Countries | 0 | - | 4.96 | 134,903 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,843 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,186 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,206 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,477,757 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,522 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,271 |
| Landlocked Countries | 0 | - | 4.99 | 420,765 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,102 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,523 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,094 |
| Seas on the World Map | 0 | - | 4.96 | 135,370 |
| Seas of the World | 0 | - | 5.00 | 156,990 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,767 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,480 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,560 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,114 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,396 |
| Island Countries | 0 | - | 4.99 | 710,520 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,843 |
| Himalayan Countries | 0 | - | 4.95 | 138,179 |
| Andean Countries | 0 | - | 4.95 | 84,309 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,533 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,415 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,164 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,596 |
| Danube Countries | 0 | - | 4.97 | 71,856 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,829 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,261 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,022 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,477 |
| European Landlocked Countries | 0 | - | 4.99 | 146,997 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,405 |
| Countries with the Most Species | 0 | - | 4.99 | 103,114 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,565 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,519 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,457 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,130 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,522 |
| Countries in the Alps | 0 | - | 4.87 | 117,991 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,839 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,770 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,557 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,469 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,339 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,843 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,492 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,363 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,091 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,717 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,573 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,428 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,086 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,364 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,386 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,592 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,187 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,709 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,842 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,302 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,731 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,126 |
| Largest Countries By Category | 0 | - | 4.97 | 157,968 |
| Countries by Countries | 0 | - | 4.97 | 63,044 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,338 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,532 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,180 |
| Northernmost Countries | 0 | - | 4.99 | 361,352 |
| Landforms by Country | 0 | - | 4.52 | 51,971 |
| Countries of South America | 0 | - | 5.00 | 925,371 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,401 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,600 |
| "Land" Countries | 0 | - | 4.98 | 336,779 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,086 |
| African Great Lakes | 0 | - | 4.82 | 66,284 |
| Seas of Europe | 0 | - | 4.37 | 84,662 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,092 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,430 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,542 |
| Countries with Megacities | 0 | - | 4.99 | 263,600 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,378 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,289 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,656 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,329 |
| Countries by Official Language | 0 | - | 4.95 | 194,986 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,011 |
| Countries in their Native Language | 0 | - | 4.99 | 198,493 |
| Independence from Whom | 0 | - | 4.99 | 211,767 |
| Subdivisions by Country | 0 | - | 4.86 | 50,373 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,022 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,829 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,274 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,856 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,065 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,944 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,496 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,250 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,952 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,574 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,046 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,385 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,801 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,112 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,886 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,407 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,473 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,258 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,425 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,765 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,215 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,827 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,119 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,849 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,837 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,754 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,886 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,189 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,366 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,459 |
| Widest Countries East to West | 0 | - | 4.92 | 129,528 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,419 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,207 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,073 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,652 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,434 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,721 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,321 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,770 |
| Countries with Double Letters | 0 | - | 4.97 | 95,715 |
| Countries that End in N | 0 | - | 4.95 | 170,685 |
| Countries with Five Letters | 0 | - | 4.96 | 281,732 |
| Countries with Six Letters | 0 | - | 4.94 | 213,091 |
| Countries with W | 0 | - | 4.97 | 159,986 |
| Countries with Z | 0 | - | 4.98 | 290,942 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,324 |
| Countries That End in U | 0 | - | 4.95 | 120,644 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,143 |
| Countries that End in O | 0 | - | 4.92 | 159,370 |
| Countries that End in R | 0 | - | 4.87 | 118,855 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,627 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,740 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,414 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,283 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,892 |
| Countries That End in Y | 0 | - | 4.91 | 185,774 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,602 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,666 |
| Countries that End in I | 0 | - | 4.94 | 134,989 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,789 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,710 |
| Countries That End in NIA | 0 | - | 4.92 | 109,653 |
| Countries That End in BIA | 0 | - | 4.93 | 149,027 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,919 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,258 |
| Countries That End in RIA | 0 | - | 4.93 | 126,689 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,833 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,209 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,475 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,864 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,418 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,461 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,863 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,389 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,352 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,319 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,789 |
| Countries that End in L | 0 | - | 4.94 | 156,701 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,966 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,216 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,929 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,851 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,895 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,479 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,444 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,835 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,373 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,874 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,738 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,028 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,651 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,777 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,829,709 |
| One Border Countries | 0 | - | 4.98 | 468,746 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,476 |
