| NATO Countries Quiz | 0 | - | 4.98 | 244,286 |
| EU Countries Quiz | 0 | - | 4.99 | 231,810 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,856,456 |
| Majority Muslim Countries | 0 | - | 4.97 | 318,017 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 229,747 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 235,349 |
| Top Five Countries by Religion | 0 | - | 4.91 | 146,757 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 128,701 |
| Countries with NO Military | 0 | - | 4.96 | 51,155 |
| Countries by Number of Books Published | 0 | - | 4.95 | 64,944 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 335,496 |
| OPEC Countries Quiz | 0 | - | 4.72 | 81,506 |
| Countries with the Most Christians | 0 | - | 4.93 | 124,757 |
| Countries with the Most Tanks | 0 | - | 4.87 | 76,890 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 42,836 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 67,597 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,184,234 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 74,962 |
| Buddhist Countries | 0 | - | 4.97 | 132,582 |
| Countries with the Most Millionaires | 0 | - | 4.85 | 86,513 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,237,366 |
| Members of the Arab League | 0 | - | 4.86 | 66,696 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,826 |
| Himalayan Countries | 0 | - | 4.94 | 108,759 |
| Andean Countries | 0 | - | 4.91 | 60,421 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,620 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 51,016 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,649 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,939 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,390 |
| Danube Countries | 0 | - | 4.96 | 57,303 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,301 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,359 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,875 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,539 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,214 |
| European Landlocked Countries | 0 | - | 4.99 | 137,303 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,959 |
| Countries with the Most Species | 0 | - | 4.99 | 90,104 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,485 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,070 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,366 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,158 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,955 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,182 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 50,021 |
| Countries in the Alps | 0 | - | 4.84 | 104,019 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,587 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,854 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,386 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,491 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 95,014 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,448 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,664 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,840 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,757 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,505 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,265 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,087 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,074 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,683 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,773 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,347 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,876 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 62,045 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,136 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 203,428 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,773 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,913 |
| Largest Countries By Category | 0 | - | 4.97 | 146,613 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,796 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 345,619 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 363,496 |
| Island Countries Quiz | 0 | - | 4.99 | 669,582 |
| Biggest Countries by Area | 0 | - | 5.00 | 949,179 |
| Northernmost Countries | 0 | - | 4.99 | 331,254 |
| Countries of South America | 0 | - | 5.00 | 811,899 |
| Countries of Oceania | 0 | - | 5.00 | 915,938 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,615,765 |
| Countries that Start with A | 0 | - | 4.98 | 1,979,398 |
| Countries that Start with B | 0 | - | 4.95 | 2,118,500 |
| Countries that Start with C | 0 | - | 4.96 | 1,676,992 |
| Countries that Start with D | 0 | - | 4.96 | 612,597 |
| Countries that Start with E | 0 | - | 4.95 | 1,256,353 |
| Countries that Start with G | 0 | - | 4.97 | 1,376,357 |
| Countries that Start with H | 0 | - | 4.96 | 522,645 |
| Countries that Start with I | 0 | - | 4.92 | 1,183,883 |
| Countries that Start with J | 0 | - | 4.98 | 524,839 |
| Countries that Start with K | 0 | - | 4.96 | 731,042 |
| Countries that Start with L | 0 | - | 4.98 | 991,507 |
| Countries that Start with N | 0 | - | 4.93 | 1,017,818 |
| Countries that Start with P | 0 | - | 4.95 | 1,120,248 |
| Countries that Start with S | 0 | - | 4.98 | 1,630,313 |
| Countries that Start with T | 0 | - | 4.89 | 928,562 |
| Countries that Start with U | 0 | - | 4.96 | 836,518 |
| Countries that Start with V | 0 | - | 4.98 | 560,042 |
| Countries that Start with F | 0 | - | 4.84 | 550,997 |
| Countries that Start with M | 0 | - | 4.97 | 1,275,161 |
| Catholic Countries Quiz | 0 | - | 4.82 | 200,282 |
| Countries with the Most Catholics | 0 | - | 4.91 | 95,893 |
| Orthodox Countries | 0 | - | 4.91 | 119,624 |
| Richest Island Countries | 0 | - | 4.86 | 89,768 |
| Monarchies of Europe | 0 | - | 4.89 | 88,362 |
| Monarchies of Asia | 0 | - | 4.95 | 54,892 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.96 | 108,405 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 285,569 |
| Countries with the Most Muslims | 0 | - | 4.95 | 147,907 |
| Countries with the Most Exports | 0 | - | 4.96 | 140,847 |
| Top Crude Oil Producing Countries | 0 | - | 4.90 | 174,693 |
| Countries by Oil Consumption | 0 | - | 4.96 | 112,811 |
| Largest Economies in 2050 | 0 | - | 4.89 | 101,611 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 242,549 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 91,775 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.86 | 68,224 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 100,545 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 179,755 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 78,039 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,366 |
| Countries with Megacities | 0 | - | 4.99 | 202,279 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,738 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 100,151 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,525 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 66,111 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,635 |
| Countries by Official Language | 0 | - | 4.96 | 175,500 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,959 |
| Countries in their Native Language | 0 | - | 4.98 | 180,852 |
| Independence from Whom | 0 | - | 4.99 | 189,735 |
| Subdivisions by Country | 0 | - | 4.85 | 46,958 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,900 |
| Megadiverse Countries | 0 | - | 4.96 | 126,908 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 94,161 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,697 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,875 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,516 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,983 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,827 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,115 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,788 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,893 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,254 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,347 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,586 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 83,180 |
| Richest Countries A-Z | 0 | - | 4.92 | 90,380 |
| Large Countries with Small Economies | 0 | - | 4.94 | 74,618 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,862 |
| Communist Countries in History | 0 | - | 4.65 | 461,973 |
| Southernmost Countries of the World | 0 | - | 4.99 | 210,026 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,991 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 110,364 |
| Countries With the Most Languages | 0 | - | 4.90 | 178,153 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,801 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,220 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 88,455 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 55,204 |
| Tallest Countries North to South | 0 | - | 4.84 | 111,710 |
| Widest Countries East to West | 0 | - | 4.93 | 120,678 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,155 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,732 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,931 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,481 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,969 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,774 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,624 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,833 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,452 |
| Countries with Double Letters | 0 | - | 4.96 | 72,638 |
| Countries that End in N | 0 | - | 4.93 | 136,886 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 234,650 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 191,191 |
| Countries with W | 0 | - | 4.97 | 126,287 |
| Countries with Z | 0 | - | 4.98 | 265,345 |
| Countries with Letters Missing | 0 | - | 4.97 | 170,139 |
| Countries That End in U | 0 | - | 4.95 | 109,868 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,958 |
| Countries that End in O | 0 | - | 4.92 | 148,972 |
| Countries that End in R | 0 | - | 4.85 | 97,527 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,472 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,583 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,945 |
| Countries by Last Two Letters | 0 | - | 4.89 | 117,871 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,810 |
| Countries That End in Y | 0 | - | 4.92 | 177,910 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 163,222 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,775 |
| Countries that End in I | 0 | - | 4.92 | 115,332 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,857 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,511 |
| Countries That End in NIA | 0 | - | 4.92 | 101,949 |
| Countries That End in BIA | 0 | - | 4.91 | 127,487 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,356 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 111,105 |
| Countries That End in RIA | 0 | - | 4.90 | 102,028 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 101,933 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 205,200 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,905 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 113,059 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,549 |
| Countries With One Word and Three A's | 0 | - | 4.93 | 42,792 |
