| Countries With No Rivers | 0 | - | 4.96 | 75,978 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,332 |
| Countries with Fjords | 0 | - | 4.93 | 100,144 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,623 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,181 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,040 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,255 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,721 |
| North Sea Countries | 0 | - | 4.92 | 86,566 |
| Black Sea Countries | 0 | - | 4.87 | 60,298 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 64,980 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,074 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,927 |
| Megadiverse Countries | 0 | - | 4.97 | 133,831 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,006 |
| African Great Lakes | 0 | - | 4.82 | 65,039 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,534 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,264 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,754 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,361 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,852,296 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,321 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,335 |
| Monarchies Bordering Monarchies | 0 | - | 4.85 | 59,924 |
| Landlocked Countries | 0 | - | 4.99 | 412,888 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,877 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,146 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,410 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,954 |
| European Countries with One Border | 0 | - | 4.97 | 181,448 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 177,966 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,022 |
| Biggest City by River | 0 | - | 4.41 | 52,681 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,291 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,835 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,000 |
| Island Countries | 0 | - | 4.99 | 707,241 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,236 |
| Himalayan Countries | 0 | - | 4.95 | 135,056 |
| Andean Countries | 0 | - | 4.94 | 82,665 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,083 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,995 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,761 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,466 |
| Danube Countries | 0 | - | 4.97 | 71,003 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,637 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,456 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,293 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,197 |
| European Landlocked Countries | 0 | - | 4.99 | 145,668 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,053 |
| Countries with the Most Species | 0 | - | 4.99 | 95,187 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,195 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,174 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,334 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,908 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,511 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,868 |
| Countries in the Alps | 0 | - | 4.87 | 116,683 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,472 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,084 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,942 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,326 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,069 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,938 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,473 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,683 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,619 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,970 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,166 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,998 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,364 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,672 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,676 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,865 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,569 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,200 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,668 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,839 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,375 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,542 |
| Largest Countries By Category | 0 | - | 4.97 | 156,618 |
| Countries by Countries | 0 | - | 4.96 | 62,168 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,060 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,653 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,354 |
| Northernmost Countries | 0 | - | 4.99 | 357,252 |
| Landforms by Country | 0 | - | 4.52 | 51,909 |
| Countries of South America | 0 | - | 5.00 | 913,398 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,636 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,205 |
| "Land" Countries | 0 | - | 4.98 | 333,416 |
| Countries That Border Russia | 0 | - | 4.98 | 458,526 |
| Countries Bordering France | 0 | - | 4.85 | 396,226 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,679 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,875 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,833 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,136 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,420 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 111,972 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,531 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,047 |
| Seas of Europe | 0 | - | 4.37 | 83,777 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,491 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,065 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,859 |
| Countries with Megacities | 0 | - | 4.99 | 246,191 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,780 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,733 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,248 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,670 |
| Capitals by River | 0 | - | 4.55 | 48,220 |
| Countries by Official Language | 0 | - | 4.95 | 192,586 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,870 |
| Countries in their Native Language | 0 | - | 4.99 | 196,471 |
| Independence from Whom | 0 | - | 4.99 | 209,463 |
| Subdivisions by Country | 0 | - | 4.86 | 50,034 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,584 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,650 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,876 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,373 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,836 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,546 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,938 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,592 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,059 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,178 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,715 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,378 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,362 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,427 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,445 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,775 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,100 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,606 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,979 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,221 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,154 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,877 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,853 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,509 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,766 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,962 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,172 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,878 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,253 |
| Widest Countries East to West | 0 | - | 4.92 | 128,520 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,076 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,520 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,624 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,517 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,947 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,031 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,552 |
| Countries with Double Letters | 0 | - | 4.97 | 93,216 |
| Countries that End in N | 0 | - | 4.94 | 156,285 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,488 |
| Countries with Six Letters | 0 | - | 4.93 | 210,189 |
| Countries with W | 0 | - | 4.97 | 158,097 |
| Countries with Z | 0 | - | 4.98 | 287,392 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,429 |
| Countries That End in U | 0 | - | 4.95 | 119,448 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,344 |
| Countries that End in O | 0 | - | 4.92 | 158,475 |
| Countries that End in R | 0 | - | 4.86 | 118,203 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,810 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,859 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,182 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,379 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,568 |
| Countries That End in Y | 0 | - | 4.90 | 185,153 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,176 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,545 |
| Countries that End in I | 0 | - | 4.94 | 134,306 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,017 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,142 |
| Countries That End in NIA | 0 | - | 4.92 | 108,931 |
| Countries That End in BIA | 0 | - | 4.92 | 147,610 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 165,971 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,406 |
| Countries That End in RIA | 0 | - | 4.93 | 126,011 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,919 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 224,977 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,431 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,806 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,241 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,869 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,026 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,549 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,767 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,685 |
| Countries that End in L | 0 | - | 4.94 | 155,638 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,670 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,965 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,456 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,225 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,367 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,210 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 198,943 |
