| Countries With No Rivers | 0 | - | 4.96 | 76,000 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,348 |
| Countries with Fjords | 0 | - | 4.93 | 100,172 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,652 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,198 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,050 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,269 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,730 |
| North Sea Countries | 0 | - | 4.92 | 86,577 |
| Black Sea Countries | 0 | - | 4.87 | 60,313 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 64,995 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,088 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,935 |
| Megadiverse Countries | 0 | - | 4.97 | 133,848 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,074 |
| African Great Lakes | 0 | - | 4.82 | 65,073 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,560 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,276 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,765 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,384 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,875,463 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,326 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,354 |
| Monarchies Bordering Monarchies | 0 | - | 4.85 | 59,939 |
| Landlocked Countries | 0 | - | 4.99 | 413,125 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,013 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,187 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,437 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,979 |
| European Countries with One Border | 0 | - | 4.97 | 181,514 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,130 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,310 |
| Biggest City by River | 0 | - | 4.41 | 52,687 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,299 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,935 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,253 |
| Island Countries | 0 | - | 4.99 | 707,378 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,368 |
| Himalayan Countries | 0 | - | 4.95 | 135,152 |
| Andean Countries | 0 | - | 4.94 | 82,722 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,143 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,069 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,815 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,510 |
| Danube Countries | 0 | - | 4.97 | 71,027 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,690 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,484 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,350 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,274 |
| European Landlocked Countries | 0 | - | 4.99 | 145,695 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,105 |
| Countries with the Most Species | 0 | - | 4.99 | 95,214 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,256 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,187 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,345 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,924 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,537 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,893 |
| Countries in the Alps | 0 | - | 4.87 | 116,738 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,505 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,148 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,967 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,360 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,093 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,955 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,504 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,708 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,814 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,005 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,178 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,010 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,395 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,701 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,702 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,949 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,590 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,217 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,720 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,981 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,467 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,561 |
| Largest Countries By Category | 0 | - | 4.97 | 156,668 |
| Countries by Countries | 0 | - | 4.96 | 62,203 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,794 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,698 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,752 |
| Northernmost Countries | 0 | - | 4.99 | 357,416 |
| Landforms by Country | 0 | - | 4.52 | 51,911 |
| Countries of South America | 0 | - | 5.00 | 913,863 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,222 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,321 |
| "Land" Countries | 0 | - | 4.98 | 333,494 |
| Countries That Border Russia | 0 | - | 4.98 | 458,668 |
| Countries Bordering France | 0 | - | 4.85 | 397,819 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,828 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,884 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,857 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,180 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,430 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,005 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,559 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,063 |
| Seas of Europe | 0 | - | 4.37 | 83,793 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,052 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,378 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,939 |
| Countries with Megacities | 0 | - | 4.99 | 246,380 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,863 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,770 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,317 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,720 |
| Capitals by River | 0 | - | 4.55 | 48,223 |
| Countries by Official Language | 0 | - | 4.95 | 192,651 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,965 |
| Countries in their Native Language | 0 | - | 4.99 | 196,523 |
| Independence from Whom | 0 | - | 4.99 | 209,549 |
| Subdivisions by Country | 0 | - | 4.86 | 50,041 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,630 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,696 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,894 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,387 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,846 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,577 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,956 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,635 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,093 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,191 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,726 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,451 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,382 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,454 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,470 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,796 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,119 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,634 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,996 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,258 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,223 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,919 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,881 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,580 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,803 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,998 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,209 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,905 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,284 |
| Widest Countries East to West | 0 | - | 4.92 | 128,552 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,199 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,130 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,534 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,647 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,553 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,973 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,037 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,557 |
| Countries with Double Letters | 0 | - | 4.97 | 93,271 |
| Countries that End in N | 0 | - | 4.94 | 156,336 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,546 |
| Countries with Six Letters | 0 | - | 4.93 | 210,248 |
| Countries with W | 0 | - | 4.97 | 158,149 |
| Countries with Z | 0 | - | 4.98 | 287,722 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,463 |
| Countries That End in U | 0 | - | 4.95 | 119,470 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,426 |
| Countries that End in O | 0 | - | 4.92 | 158,500 |
| Countries that End in R | 0 | - | 4.87 | 118,232 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,824 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,912 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,226 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,419 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,677 |
| Countries That End in Y | 0 | - | 4.90 | 185,171 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,237 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,588 |
| Countries that End in I | 0 | - | 4.94 | 134,347 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,075 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,161 |
| Countries That End in NIA | 0 | - | 4.92 | 108,950 |
| Countries That End in BIA | 0 | - | 4.92 | 147,643 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,005 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,431 |
| Countries That End in RIA | 0 | - | 4.93 | 126,037 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,948 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,057 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,471 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,851 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,291 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,890 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,056 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,584 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,785 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,731 |
| Countries that End in L | 0 | - | 4.94 | 155,668 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,872 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,973 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,479 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,250 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,389 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,508 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 198,997 |
