| North Sea Countries | 0 | - | 4.92 | 87,470 |
| Black Sea Countries | 0 | - | 4.87 | 60,645 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,440 |
| Countries With No Rivers | 0 | - | 4.96 | 76,894 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,130 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,271 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,889 |
| Countries with Fjords | 0 | - | 4.94 | 101,012 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 115,925 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,627 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,785 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,722 |
| Megadiverse Countries | 0 | - | 4.96 | 134,991 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 29,019 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,332 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,947 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,270 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,282 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,564,694 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,463 |
| Landlocked Countries | 0 | - | 4.99 | 421,729 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,538 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,777,135 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,363 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,329 |
| Himalayan Countries | 0 | - | 4.95 | 138,615 |
| Andean Countries | 0 | - | 4.93 | 84,548 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,738 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,738 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,373 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,760 |
| Danube Countries | 0 | - | 4.97 | 71,977 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,985 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,396 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,255 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,728 |
| European Landlocked Countries | 0 | - | 4.99 | 147,117 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,588 |
| Countries with the Most Species | 0 | - | 4.99 | 103,214 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,721 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,574 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,709 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,522 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,208 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,633 |
| Countries in the Alps | 0 | - | 4.87 | 118,171 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,956 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,996 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,629 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,576 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,475 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,933 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,649 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,469 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,168 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,820 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,641 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,507 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,200 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,446 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,496 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,848 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,290 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,436 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,034 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,815 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,039 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,205 |
| Largest Countries By Category | 0 | - | 4.97 | 158,177 |
| Countries by Countries | 0 | - | 4.96 | 63,188 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,273 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,655 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,635 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,208 |
| Seas on the World Map | 0 | - | 4.96 | 135,512 |
| Seas of the World | 0 | - | 5.00 | 157,302 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,790 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,382 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,441 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,051 |
| Island Countries | 0 | - | 4.99 | 710,960 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,383,102 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,563 |
| Northernmost Countries | 0 | - | 4.99 | 361,845 |
| Countries of South America | 0 | - | 5.00 | 927,092 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,504 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,876,593 |
| "Land" Countries | 0 | - | 4.98 | 337,268 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,589 |
| Landforms by Country | 0 | - | 4.52 | 51,980 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,109 |
| African Great Lakes | 0 | - | 4.82 | 66,443 |
| Seas of Europe | 0 | - | 4.37 | 84,713 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,791 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,876 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,818 |
| Countries with Megacities | 0 | - | 4.99 | 264,412 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,688 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,442 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,947 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,506 |
| Countries by Official Language | 0 | - | 4.95 | 195,208 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,300 |
| Countries in their Native Language | 0 | - | 4.99 | 198,999 |
| Independence from Whom | 0 | - | 4.99 | 212,039 |
| Subdivisions by Country | 0 | - | 4.86 | 50,423 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,687 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,040 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,334 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,223 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,094 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,094 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,582 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,430 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,017 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,634 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,135 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,638 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,863 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,191 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,949 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,340 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,478 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,124 |
| World Map Quiz | 0 | - | 4.81 | 65,048 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,332 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,040 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,251 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,969 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,131 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,864 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,985 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,276 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,428 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,556 |
| Widest Countries East to West | 0 | - | 4.92 | 129,624 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,445 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,350 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,112 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,751 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,570 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,846 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,365 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,795 |
| Countries with Double Letters | 0 | - | 4.96 | 96,176 |
| Countries that End in N | 0 | - | 4.95 | 171,056 |
| Countries with Five Letters | 0 | - | 4.96 | 282,328 |
| Countries with Six Letters | 0 | - | 4.94 | 213,486 |
| Countries with W | 0 | - | 4.97 | 160,282 |
| Countries with Z | 0 | - | 4.98 | 291,377 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,646 |
| Countries That End in U | 0 | - | 4.95 | 120,820 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,409 |
| Countries that End in O | 0 | - | 4.92 | 159,492 |
| Countries that End in R | 0 | - | 4.87 | 118,949 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,709 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,025 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,653 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,448 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,362 |
| Countries That End in Y | 0 | - | 4.91 | 185,857 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,869 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,820 |
| Countries that End in I | 0 | - | 4.94 | 135,070 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,039 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,807 |
| Countries That End in NIA | 0 | - | 4.92 | 109,760 |
| Countries That End in BIA | 0 | - | 4.93 | 149,166 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,075 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,397 |
| Countries That End in RIA | 0 | - | 4.93 | 126,788 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,991 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,524 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,663 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,064 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,622 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,559 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,993 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,435 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,496 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,401 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,951 |
| Countries that End in L | 0 | - | 4.94 | 156,812 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,600 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,256 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,004 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,934 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,975 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,693 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,616 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,957 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,503 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,391 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,840 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,084 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,697 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,855 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,833,991 |
| One Border Countries | 0 | - | 4.98 | 469,744 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,631,018 |
