| Countries of the World Quiz | 0 | - | 5.00 | 46,925,567 |
| NATO Countries | 0 | - | 4.98 | 275,805 |
| EU Countries Quiz | 0 | - | 4.99 | 269,989 |
| Landlocked Countries | 0 | - | 4.99 | 413,685 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,395 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,478 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,938 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,265 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,882 |
| Every Country Shape | 0 | - | 5.00 | 459,023 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,462 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,618 |
| Himalayan Countries | 0 | - | 4.95 | 135,384 |
| Andean Countries | 0 | - | 4.94 | 82,834 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,224 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,226 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,913 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,618 |
| Danube Countries | 0 | - | 4.97 | 71,089 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,769 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,541 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,496 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,410 |
| European Landlocked Countries | 0 | - | 4.99 | 145,760 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,221 |
| Countries with the Most Species | 0 | - | 4.99 | 95,244 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,356 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,200 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,371 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,960 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,579 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,953 |
| Countries in the Alps | 0 | - | 4.86 | 116,832 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,576 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,267 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,015 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,427 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,174 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,009 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,585 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,760 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,316 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,067 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,198 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,046 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,455 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,753 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,758 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,078 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,652 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,255 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,774 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,329 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,691 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,606 |
| Largest Countries By Category | 0 | - | 4.97 | 156,769 |
| Countries by Countries | 0 | - | 4.96 | 62,263 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,775 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,075 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,138 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,880 |
| Island Countries | 0 | - | 4.99 | 707,653 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,532 |
| Northernmost Countries | 0 | - | 4.99 | 357,761 |
| Countries of South America | 0 | - | 5.00 | 914,883 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,601 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,603 |
| "Land" Countries | 0 | - | 4.98 | 333,672 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,412 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,360 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,040 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,057 |
| Orthodox Countries | 0 | - | 4.91 | 130,402 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,492 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,049 |
| Battle to Country | 0 | - | 4.91 | 52,535 |
| Monarchies of Europe | 0 | - | 4.90 | 97,337 |
| Monarchies of Asia | 0 | - | 4.97 | 70,611 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,434 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,498 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,296 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 162,333 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,462 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,353 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,673 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,286 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,312 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,045 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,576 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,052 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,611 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,275 |
| Countries with Megacities | 0 | - | 4.99 | 246,994 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,157 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,000 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,959 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,577 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,896 |
| Countries by Official Language | 0 | - | 4.95 | 192,785 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,148 |
| Countries in their Native Language | 0 | - | 4.99 | 196,646 |
| Independence from Whom | 0 | - | 4.99 | 209,712 |
| Subdivisions by Country | 0 | - | 4.86 | 50,069 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,769 |
| Megadiverse Countries | 0 | - | 4.97 | 133,907 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,809 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,921 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,431 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,863 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,670 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,008 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,035 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,151 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,217 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,748 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,581 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,426 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,500 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,506 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,682 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,030 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,273 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,371 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,260 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,096 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,609 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 79,622 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 76,336 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 75,595 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 153,548 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 72,816 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,336 |
| Communist Countries in History | 0 | - | 4.63 | 492,563 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.99 | 28,134 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,365 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,997 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,959 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,787 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,860 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,067 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,281 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,951 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,338 |
| Widest Countries East to West | 0 | - | 4.92 | 128,610 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,218 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,223 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,570 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,694 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,638 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,049 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,051 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,585 |
| Countries with Double Letters | 0 | - | 4.97 | 93,399 |
| Countries that End in N | 0 | - | 4.94 | 156,889 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,698 |
| Countries with Six Letters | 0 | - | 4.93 | 210,375 |
| Countries with W | 0 | - | 4.97 | 158,237 |
| Countries with Z | 0 | - | 4.98 | 287,891 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,560 |
| Countries That End in U | 0 | - | 4.95 | 119,521 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,568 |
| Countries that End in O | 0 | - | 4.92 | 158,560 |
| Countries that End in R | 0 | - | 4.87 | 118,276 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,861 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,044 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,340 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,500 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,030 |
| Countries That End in Y | 0 | - | 4.90 | 185,209 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,387 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,696 |
| Countries that End in I | 0 | - | 4.94 | 134,417 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,206 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,198 |
| Countries That End in NIA | 0 | - | 4.92 | 109,012 |
| Countries That End in BIA | 0 | - | 4.92 | 147,721 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,069 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,491 |
| Countries That End in RIA | 0 | - | 4.93 | 126,086 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,013 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,207 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,529 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,890 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,363 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,930 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,127 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,652 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,516 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,816 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,819 |
| Countries that End in L | 0 | - | 4.94 | 155,735 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,221 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,988 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,514 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,303 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,437 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,013 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,112 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 125,920 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,198 |
