| Countries With No Rivers | 0 | - | 4.96 | 76,833 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,137 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,845 |
| Countries with Fjords | 0 | - | 4.94 | 100,925 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,545 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,720 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,424 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,678 |
| Megadiverse Countries | 0 | - | 4.96 | 134,910 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,030 |
| North Sea Countries | 0 | - | 4.92 | 87,411 |
| Black Sea Countries | 0 | - | 4.87 | 60,614 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,394 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,494 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,241 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 115,775 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,915 |
| African Great Lakes | 0 | - | 4.82 | 66,288 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,848 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,193 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,216 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,484,839 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,482 |
| Landlocked Countries | 0 | - | 4.99 | 420,826 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,525 |
| Capitals by River | 0 | - | 4.55 | 48,323 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,811 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,281 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,184 |
| Biggest City by River | 0 | - | 4.38 | 52,863 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,898 |
| Himalayan Countries | 0 | - | 4.95 | 138,216 |
| Andean Countries | 0 | - | 4.95 | 84,331 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,555 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,440 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,180 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,605 |
| Danube Countries | 0 | - | 4.97 | 71,865 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,840 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,269 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,041 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,508 |
| European Landlocked Countries | 0 | - | 4.99 | 147,006 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,423 |
| Countries with the Most Species | 0 | - | 4.99 | 103,128 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,572 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,523 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,459 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,137 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,537 |
| Countries in the Alps | 0 | - | 4.87 | 118,008 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,023 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,789 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,562 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,480 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,350 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,851 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,503 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,368 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,097 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,725 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,574 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,433 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,097 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,371 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,393 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,610 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,195 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,715 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,861 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,352 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,756 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,131 |
| Largest Countries By Category | 0 | - | 4.97 | 157,978 |
| Countries by Countries | 0 | - | 4.96 | 63,051 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,547 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,532 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,107 |
| Rivers of the United States | 0 | - | 4.93 | 66,225 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,768 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,545 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,143 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,453 |
| Island Countries | 0 | - | 4.99 | 710,556 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,544 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,296 |
| Northernmost Countries | 0 | - | 4.99 | 361,389 |
| Countries of South America | 0 | - | 5.00 | 925,509 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,601 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,940 |
| "Land" Countries | 0 | - | 4.98 | 336,853 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,563 |
| Landforms by Country | 0 | - | 4.52 | 51,972 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,088 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,222 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,458 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,573 |
| Countries with Megacities | 0 | - | 4.99 | 263,683 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,412 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,302 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,687 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,342 |
| Countries by Official Language | 0 | - | 4.95 | 194,999 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,036 |
| Countries in their Native Language | 0 | - | 4.99 | 198,507 |
| Independence from Whom | 0 | - | 4.99 | 211,787 |
| Subdivisions by Country | 0 | - | 4.86 | 50,379 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,138 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,859 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,280 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,860 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,067 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,958 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,502 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,271 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,959 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,584 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,048 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,412 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,806 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,119 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,895 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,266 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,429 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,803 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,226 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,848 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,130 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,855 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,859 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,759 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,892 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,198 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,371 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,470 |
| Widest Countries East to West | 0 | - | 4.92 | 129,541 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,420 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,219 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,075 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,660 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,446 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,729 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,325 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,772 |
| Countries with Double Letters | 0 | - | 4.97 | 95,804 |
| Countries that End in N | 0 | - | 4.95 | 170,748 |
| Countries with Five Letters | 0 | - | 4.96 | 281,816 |
| Countries with Six Letters | 0 | - | 4.94 | 213,158 |
| Countries with W | 0 | - | 4.97 | 160,046 |
| Countries with Z | 0 | - | 4.98 | 291,005 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,383 |
| Countries That End in U | 0 | - | 4.95 | 120,680 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,178 |
| Countries that End in O | 0 | - | 4.92 | 159,397 |
| Countries that End in R | 0 | - | 4.87 | 118,869 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,640 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,779 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,449 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,299 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,993 |
| Countries That End in Y | 0 | - | 4.91 | 185,789 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,640 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,680 |
| Countries that End in I | 0 | - | 4.94 | 135,000 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,821 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,724 |
| Countries That End in NIA | 0 | - | 4.92 | 109,665 |
| Countries That End in BIA | 0 | - | 4.93 | 149,049 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,942 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,270 |
| Countries That End in RIA | 0 | - | 4.93 | 126,705 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,843 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,239 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,490 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,885 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,447 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,477 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,875 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,393 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,373 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,334 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,805 |
| Countries that End in L | 0 | - | 4.94 | 156,713 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,009 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,226 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,936 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,859 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,902 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,503 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,463 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,855 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,387 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,962 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,754 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,034 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,654 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,779 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,830,035 |
| One Border Countries | 0 | - | 4.98 | 468,788 |
