| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,821 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,900 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,101 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,184 |
| South China Sea Countries | 0 | - | 4.78 | 57,509 |
| African Great Lakes | 0 | - | 4.82 | 65,271 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,884 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,659 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,345 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,453 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,970,374 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,594 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,132 |
| Countries Closest to the Aegean Sea | 0 | - | 4.75 | 66,666 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,482 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,468 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,470 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,319 |
| Landlocked Countries | 0 | - | 4.99 | 414,244 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,539 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,721,980 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,989 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,088 |
| Landforms by Country | 0 | - | 4.52 | 51,920 |
| Countries That Border Russia | 0 | - | 4.98 | 459,201 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,558 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,131 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,688 |
| Countries Bordering France | 0 | - | 4.83 | 399,929 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,274 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,775 |
| Capitals by River | 0 | - | 4.55 | 48,243 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,357 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,172 |
| Island Countries | 0 | - | 4.99 | 707,857 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,841 |
| Himalayan Countries | 0 | - | 4.95 | 135,569 |
| Andean Countries | 0 | - | 4.94 | 82,947 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,310 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,352 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,014 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,681 |
| Danube Countries | 0 | - | 4.97 | 71,133 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,841 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,604 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,610 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,525 |
| European Landlocked Countries | 0 | - | 4.99 | 145,831 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,300 |
| Countries with the Most Species | 0 | - | 4.99 | 95,281 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,442 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,220 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,389 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,989 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,625 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,001 |
| Countries in the Alps | 0 | - | 4.86 | 116,924 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,637 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,374 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,063 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,476 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,247 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,058 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,662 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,813 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,520 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,116 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,215 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,077 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,496 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,803 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,795 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,197 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,707 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,289 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,860 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,610 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,872 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,637 |
| Largest Countries By Category | 0 | - | 4.97 | 156,866 |
| Countries by Countries | 0 | - | 4.96 | 62,322 |
| Top 10 African Countries by Coastline | 0 | - | 4.27 | 47,831 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,077 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,828 |
| One Border Countries - Shape Quiz | 0 | - | 4.84 | 64,538 |
| Merged Country Shapes Quiz #1 | 0 | - | 4.93 | 59,067 |
| Merged Country Shapes Quiz #2 | 0 | - | 4.92 | 59,865 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,314 |
| Northernmost Countries | 0 | - | 4.99 | 358,050 |
| Countries of South America | 0 | - | 5.00 | 915,884 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,913 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,532 |
| "Land" Countries | 0 | - | 4.98 | 333,810 |
| Countries Bordering India | 0 | - | 4.98 | 162,654 |
| Countries that Border China | 0 | - | 4.96 | 261,942 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,498 |
| Countries that Border Poland | 0 | - | 4.99 | 171,454 |
| Merged Countries #2 | 0 | - | 4.96 | 98,522 |
| Merged Countries #6 | 0 | - | 4.91 | 72,770 |
| Merged Countries #7 | 0 | - | 4.92 | 82,019 |
| Europe Map Quiz | 0 | - | 5.00 | 4,734,288 |
| Sea in the Answers | 0 | - | 4.10 | 48,585 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,139 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,906 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,585 |
| Countries with Megacities | 0 | - | 4.99 | 247,487 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,430 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,176 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,841 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,101 |
| Countries by Official Language | 0 | - | 4.95 | 192,910 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,318 |
| Countries in their Native Language | 0 | - | 4.99 | 196,761 |
| Independence from Whom | 0 | - | 4.99 | 209,855 |
| Subdivisions by Country | 0 | - | 4.86 | 50,098 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,879 |
| Megadiverse Countries | 0 | - | 4.97 | 133,958 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,934 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,949 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,460 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,873 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,741 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,042 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,162 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,210 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,244 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,758 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,717 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,451 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,539 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,532 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,725 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,400 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,486 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,269 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,019 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,941 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,931 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,124 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,340 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,981 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,386 |
| Widest Countries East to West | 0 | - | 4.92 | 128,689 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,228 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,306 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,595 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,734 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,687 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,113 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,540 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,601 |
| Countries with Double Letters | 0 | - | 4.96 | 93,499 |
| Countries that End in N | 0 | - | 4.94 | 156,985 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,805 |
| Countries with Six Letters | 0 | - | 4.93 | 210,484 |
| Countries with W | 0 | - | 4.97 | 158,301 |
| Countries with Z | 0 | - | 4.98 | 288,012 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,625 |
| Countries That End in U | 0 | - | 4.95 | 119,552 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,692 |
| Countries that End in O | 0 | - | 4.92 | 158,591 |
| Countries that End in R | 0 | - | 4.87 | 118,308 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,880 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,213 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,416 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,553 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,095 |
| Countries That End in Y | 0 | - | 4.90 | 185,235 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,477 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,771 |
| Countries that End in I | 0 | - | 4.94 | 134,470 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,302 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,237 |
| Countries That End in NIA | 0 | - | 4.92 | 109,054 |
| Countries That End in BIA | 0 | - | 4.92 | 147,767 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,141 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,547 |
| Countries That End in RIA | 0 | - | 4.93 | 126,127 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,076 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,318 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,567 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,942 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,435 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,962 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,182 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,709 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,842 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,882 |
| Countries that End in L | 0 | - | 4.94 | 155,821 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,586 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,998 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,555 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,350 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,465 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,561 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,381 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 138,473 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,454 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,772 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,765 |
