| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,044 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,022,737 |
| Companies by Country | 0 | - | 4.61 | 118,847 |
| Landlocked Countries | 0 | - | 4.99 | 414,922 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,462 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,798 |
| Countries by Emojis | 0 | - | 4.99 | 237,109 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,254 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,113 |
| Political Movements by Country | 0 | - | 4.46 | 72,323 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,727,280 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,205 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,114 |
| Himalayan Countries | 0 | - | 4.95 | 135,820 |
| Andean Countries | 0 | - | 4.94 | 83,094 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,419 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,523 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,119 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,776 |
| Danube Countries | 0 | - | 4.97 | 71,218 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,944 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,669 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,773 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,682 |
| European Landlocked Countries | 0 | - | 4.99 | 145,916 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,438 |
| Countries with the Most Species | 0 | - | 4.99 | 95,317 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,581 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,249 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,422 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,036 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,686 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,048 |
| Countries in the Alps | 0 | - | 4.86 | 117,044 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,715 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,505 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,132 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,543 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,331 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,110 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,740 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,866 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,652 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,173 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,255 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,116 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,578 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,852 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,859 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,355 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,761 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,532 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,465 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,332 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,277 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,972 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,016 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,075 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,698 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,422 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 88,956 |
| Largest Countries By Category | 0 | - | 4.97 | 156,964 |
| Orthodox Countries | 0 | - | 4.91 | 130,593 |
| Countries by Countries | 0 | - | 4.96 | 62,402 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 47,942 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,772 |
| Battle to Country | 0 | - | 4.91 | 52,656 |
| Monarchies of Europe | 0 | - | 4.90 | 97,490 |
| Monarchies of Asia | 0 | - | 4.97 | 70,694 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,008 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,903 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,514 |
| Books by Country Quiz | 0 | - | 4.30 | 32,188 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,686 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,808 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,463 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,578 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,515 |
| Island Countries | 0 | - | 4.99 | 708,126 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,831 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,212 |
| Northernmost Countries | 0 | - | 4.99 | 358,473 |
| Countries of South America | 0 | - | 5.00 | 917,075 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,215 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,852,797 |
| "Land" Countries | 0 | - | 4.98 | 333,994 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,751 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,546 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,495 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,396 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,214 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 129,849 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,396 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,272 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,568 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,564 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,218 |
| Name a Valid African Country | 0 | - | 4.98 | 153,136 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,285 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,194 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,783 |
| Countries with Megacities | 0 | - | 4.99 | 247,930 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,662 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,283 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,046 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,234 |
| Countries by Official Language | 0 | - | 4.95 | 193,052 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,533 |
| Countries in their Native Language | 0 | - | 4.99 | 196,902 |
| Independence from Whom | 0 | - | 4.99 | 210,031 |
| Subdivisions by Country | 0 | - | 4.86 | 50,121 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,987 |
| Megadiverse Countries | 0 | - | 4.97 | 134,014 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,063 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,984 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,498 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,893 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,824 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,093 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,270 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,342 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,275 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,775 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,822 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,484 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,590 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,569 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,763 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,105 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,982 |
| World Map Quiz | 0 | - | 4.81 | 63,713 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,509 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,696 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,452 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,190 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,189 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,065 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,268 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,462 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,041 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,499 |
| Widest Countries East to West | 0 | - | 4.92 | 128,988 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,276 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,421 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,633 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,826 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,772 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,185 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,023 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,632 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 335,356 |
| Countries with Double Letters | 0 | - | 4.97 | 93,629 |
| Countries that End in N | 0 | - | 4.94 | 157,093 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,955 |
| Countries with Six Letters | 0 | - | 4.93 | 210,619 |
| Countries with W | 0 | - | 4.97 | 158,388 |
| Countries with Z | 0 | - | 4.98 | 288,166 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,714 |
| Countries That End in U | 0 | - | 4.95 | 119,595 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,826 |
| Countries that End in O | 0 | - | 4.92 | 158,632 |
| Countries that End in R | 0 | - | 4.87 | 118,355 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,916 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,352 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,499 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,614 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,161 |
| Countries That End in Y | 0 | - | 4.90 | 185,272 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,566 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,857 |
| Countries that End in I | 0 | - | 4.94 | 134,521 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,408 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,279 |
| Countries That End in NIA | 0 | - | 4.92 | 109,095 |
| Countries That End in BIA | 0 | - | 4.92 | 147,827 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,214 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,608 |
| Countries That End in RIA | 0 | - | 4.93 | 126,179 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,144 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,619 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,640 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,996 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,518 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,008 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,255 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,765 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,653 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,875 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,956 |
| Countries that End in L | 0 | - | 4.94 | 156,137 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,925 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,017 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,602 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,419 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,502 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,841 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,575 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,349 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,605 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,964 |
