| Countries of the World Quiz | 0 | - | 5.00 | 43,637,569 |
| Majority Muslim Countries | 0 | - | 4.98 | 326,980 |
| NATO Countries Quiz | 0 | - | 4.98 | 255,185 |
| EU Countries Quiz | 0 | - | 4.99 | 248,130 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 262,950 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 245,206 |
| Top Five Countries by Religion | 0 | - | 4.91 | 155,030 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 136,502 |
| Countries with NO Military | 0 | - | 4.96 | 55,179 |
| Countries by Number of Books Published | 0 | - | 4.94 | 67,786 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 373,711 |
| Countries with the Most Christians | 0 | - | 4.92 | 130,893 |
| Countries with the Most Tanks | 0 | - | 4.85 | 80,181 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 45,312 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 69,704 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,334,600 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 79,360 |
| Buddhist Countries | 0 | - | 4.96 | 136,119 |
| Countries with the Most Millionaires | 0 | - | 4.84 | 97,018 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,407,590 |
| Sahara Desert Countries | 0 | - | 4.98 | 141,396 |
| Himalayan Countries | 0 | - | 4.95 | 118,518 |
| Andean Countries | 0 | - | 4.92 | 66,390 |
| Countries with the Oldest Median Age | 0 | - | 4.83 | 67,479 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 55,064 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,306 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,142 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 57,826 |
| Danube Countries | 0 | - | 4.97 | 59,835 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,529 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 80,899 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,232 |
| Countries with the Worst Passports | 0 | - | 4.91 | 60,520 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 134,328 |
| European Landlocked Countries | 0 | - | 4.99 | 139,789 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,318 |
| Countries with the Most Species | 0 | - | 4.99 | 91,691 |
| Countries 197 to 205 | 0 | - | 4.87 | 61,793 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,289 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,406 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,725 |
| Countries that Use the Peso | 0 | - | 4.83 | 48,877 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,317 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,752 |
| Countries in the Alps | 0 | - | 4.86 | 108,623 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,675 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 95,811 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,615 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,531 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,445 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,094 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 93,954 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,034 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,366 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 57,945 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,106 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,704 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 38,573 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,346 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,054 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,684 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 106,973 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,119 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,069 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 217,872 |
| World Countries - Blind Typing | 0 | - | 5.00 | 82,621 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 44,421 |
| Largest Countries By Category | 0 | - | 4.97 | 149,982 |
| Countries by Countries | 0 | - | 4.96 | 57,727 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 82,828 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 356,737 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 377,644 |
| Island Countries Quiz | 0 | - | 4.99 | 685,475 |
| Biggest Countries by Area | 0 | - | 5.00 | 979,397 |
| Northernmost Countries | 0 | - | 4.99 | 339,883 |
| Countries of South America | 0 | - | 5.00 | 848,521 |
| Countries of Oceania | 0 | - | 5.00 | 959,215 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,697,968 |
| Countries that Start with A | 0 | - | 4.98 | 2,042,733 |
| Countries that Start with B | 0 | - | 4.95 | 2,180,796 |
| Countries that Start with C | 0 | - | 4.96 | 1,729,286 |
| Countries that Start with D | 0 | - | 4.96 | 646,839 |
| Countries that Start with E | 0 | - | 4.95 | 1,299,386 |
| Countries that Start with G | 0 | - | 4.97 | 1,421,255 |
| Countries that Start with H | 0 | - | 4.96 | 551,578 |
| Countries that Start with I | 0 | - | 4.92 | 1,223,630 |
| Countries that Start with J | 0 | - | 4.98 | 552,247 |
| Countries that Start with K | 0 | - | 4.96 | 761,949 |
| Countries that Start with L | 0 | - | 4.98 | 1,027,022 |
| Countries that Start with N | 0 | - | 4.93 | 1,053,766 |
| Countries that Start with P | 0 | - | 4.95 | 1,154,431 |
| Countries that Start with S | 0 | - | 4.98 | 1,674,162 |
| Countries that Start with T | 0 | - | 4.89 | 960,584 |
| Countries that Start with U | 0 | - | 4.97 | 862,738 |
| Countries that Start with V | 0 | - | 4.98 | 576,830 |
| Countries that Start with F | 0 | - | 4.83 | 573,905 |
| Countries that Start with M | 0 | - | 4.97 | 1,312,998 |
| Countries with the Most Catholics | 0 | - | 4.89 | 100,168 |
| Orthodox Countries | 0 | - | 4.91 | 123,436 |
| Richest Island Countries | 0 | - | 4.82 | 93,546 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,225,616 |
| Monarchies of Europe | 0 | - | 4.89 | 92,156 |
| Monarchies of Asia | 0 | - | 4.96 | 67,551 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.96 | 113,216 |
| Countries with the Most Billionaires | 0 | - | 4.92 | 315,235 |
| Countries with the Most Muslims | 0 | - | 4.94 | 152,113 |
| Countries with the Most Exports | 0 | - | 4.96 | 146,907 |
| Top Crude Oil Producing Countries | 0 | - | 4.90 | 180,239 |
| Countries by Oil Consumption | 0 | - | 4.96 | 115,430 |
| Largest Economies in 2050 | 0 | - | 4.89 | 105,312 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 248,443 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 96,315 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 78,654 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 104,244 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 185,221 |
| Most Visited Countries by JetPunkers | 0 | - | 4.88 | 109,096 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 155,257 |
| Countries with Megacities | 0 | - | 4.99 | 213,935 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 184,144 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 104,843 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 105,336 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 71,550 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 266,061 |
| Countries by Official Language | 0 | - | 4.95 | 182,015 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 278,992 |
| Countries in their Native Language | 0 | - | 4.98 | 186,973 |
| Independence from Whom | 0 | - | 4.99 | 197,386 |
| Subdivisions by Country | 0 | - | 4.86 | 48,150 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 121,849 |
| Megadiverse Countries | 0 | - | 4.96 | 129,800 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 119,041 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 110,144 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 49,078 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 153,923 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 58,801 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 84,866 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,302 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 79,562 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,090 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 64,622 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,128 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,291 |
| Countries with the Highest HDI | 0 | - | 4.95 | 133,649 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 86,064 |
| Richest Countries A-Z | 0 | - | 4.93 | 94,640 |
| Large Countries with Small Economies | 0 | - | 4.94 | 76,824 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 85,742 |
| Southernmost Countries of the World | 0 | - | 4.99 | 216,535 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 97,429 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 114,912 |
| Countries With the Most Languages | 0 | - | 4.88 | 186,723 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 91,778 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 87,452 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 92,172 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 57,638 |
| Tallest Countries North to South | 0 | - | 4.85 | 114,769 |
| Widest Countries East to West | 0 | - | 4.92 | 123,679 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,933 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,251 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,026 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 89,520 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 123,994 |
| Countries with the Most Desert | 0 | - | 4.93 | 122,498 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,752 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 33,294 |
| Countries with Double Letters | 0 | - | 4.96 | 79,861 |
| Countries that End in N | 0 | - | 4.93 | 144,104 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 242,916 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 198,313 |
| Countries with W | 0 | - | 4.97 | 131,795 |
| Countries with Z | 0 | - | 4.98 | 273,418 |
| Countries with Letters Missing | 0 | - | 4.97 | 175,109 |
| Countries That End in U | 0 | - | 4.95 | 113,192 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 98,593 |
| Countries that End in O | 0 | - | 4.92 | 152,892 |
| Countries that End in R | 0 | - | 4.84 | 99,377 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,018 |
| Countries Ending in "IA" | 0 | - | 4.99 | 196,153 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 162,195 |
| Countries by Last Two Letters | 0 | - | 4.89 | 120,972 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 134,487 |
| Countries That End in Y | 0 | - | 4.91 | 181,143 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 187,620 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 126,446 |
| Countries that End in I | 0 | - | 4.92 | 116,955 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 157,081 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 91,454 |
| Countries That End in NIA | 0 | - | 4.92 | 104,464 |
| Countries That End in BIA | 0 | - | 4.92 | 141,498 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 160,006 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 113,899 |
| Countries That End in RIA | 0 | - | 4.89 | 104,823 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 104,974 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 212,850 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 125,983 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 117,653 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 83,660 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 70,653 |
| Countries With One Word and Three A's | 0 | - | 4.93 | 47,781 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 45,680 |
