| Majority Muslim Countries | 0 | - | 4.98 | 375,271 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,069 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,519 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,444 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,690 |
| Orthodox Countries | 0 | - | 4.92 | 132,181 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,598 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,945 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,551,861 |
| NATO Countries | 0 | - | 4.98 | 281,282 |
| EU Countries Quiz | 0 | - | 4.99 | 275,215 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,092 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,119 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,841 |
| Countries with NO Military | 0 | - | 4.97 | 62,558 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,747 |
| Landlocked Countries | 0 | - | 4.99 | 421,569 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,603 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,672 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,880 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,530 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,823 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,808 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,775,857 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,247 |
| Himalayan Countries | 0 | - | 4.95 | 138,542 |
| Andean Countries | 0 | - | 4.93 | 84,507 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,692 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,686 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,323 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,726 |
| Danube Countries | 0 | - | 4.97 | 71,957 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,957 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,377 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,216 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,687 |
| European Landlocked Countries | 0 | - | 4.99 | 147,084 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,554 |
| Countries with the Most Species | 0 | - | 4.99 | 103,193 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,689 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,558 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,700 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,509 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,191 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,613 |
| Countries in the Alps | 0 | - | 4.87 | 118,143 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,829 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,967 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,617 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,557 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,447 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,918 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,623 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,455 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,154 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,807 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,628 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,492 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,181 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,431 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,482 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,799 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,275 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,064 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,995 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,732 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,980 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,186 |
| Largest Countries By Category | 0 | - | 4.97 | 158,139 |
| Countries by Countries | 0 | - | 4.96 | 63,148 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,638 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,245 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,398 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,962 |
| Island Countries | 0 | - | 4.99 | 710,900 |
| Sharia Law Countries | 0 | - | 4.48 | 63,772 |
| Countries with the Most Cathedrals | 0 | - | 4.48 | 46,666 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,366 |
| Northernmost Countries | 0 | - | 4.99 | 361,778 |
| Countries of South America | 0 | - | 5.00 | 926,749 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,158 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,876,006 |
| "Land" Countries | 0 | - | 4.98 | 337,224 |
| Countries that Start with A | 0 | - | 4.98 | 2,165,459 |
| Countries that Start with B | 0 | - | 4.95 | 2,296,964 |
| Countries that Start with C | 0 | - | 4.96 | 1,824,151 |
| Countries that Start with D | 0 | - | 4.96 | 711,140 |
| Countries that Start with E | 0 | - | 4.95 | 1,378,910 |
| Countries that Start with G | 0 | - | 4.97 | 1,505,177 |
| Countries that Start with H | 0 | - | 4.96 | 605,824 |
| Countries that Start with I | 0 | - | 4.92 | 1,289,684 |
| Countries that Start with J | 0 | - | 4.98 | 603,441 |
| Countries that Start with K | 0 | - | 4.97 | 816,941 |
| Countries that Start with L | 0 | - | 4.98 | 1,092,055 |
| Countries that Start with N | 0 | - | 4.93 | 1,119,066 |
| Countries that Start with P | 0 | - | 4.94 | 1,217,497 |
| Countries that Start with S | 0 | - | 4.98 | 1,756,751 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,875 |
| Countries that Start with U | 0 | - | 4.97 | 905,336 |
| Countries that Start with V | 0 | - | 4.98 | 609,916 |
| Countries that Start with F | 0 | - | 4.83 | 618,418 |
| Countries that Start with M | 0 | - | 4.97 | 1,383,183 |
| Richest Island Countries | 0 | - | 4.85 | 100,722 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,692 |
| Monarchies of Europe | 0 | - | 4.90 | 98,278 |
| Monarchies of Asia | 0 | - | 4.97 | 71,172 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,048 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,976 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,589 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,911 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,501 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,568 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,292 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,460 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,665 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,423 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,522 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,787 |
| Countries with Megacities | 0 | - | 4.99 | 264,326 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,646 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,414 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,909 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,481 |
| Countries by Official Language | 0 | - | 4.95 | 195,176 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,259 |
| Countries in their Native Language | 0 | - | 4.99 | 198,971 |
| Independence from Whom | 0 | - | 4.99 | 211,989 |
| Subdivisions by Country | 0 | - | 4.86 | 50,413 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,656 |
| Megadiverse Countries | 0 | - | 4.96 | 134,977 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,011 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,331 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,193 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,091 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,064 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,573 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,406 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,004 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,624 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,126 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,608 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,851 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,720 |
| Catholic Countries | 0 | - | 4.79 | 215,113 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,179 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,943 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,317 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,379 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,017 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,313 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,007 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,237 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,955 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,096 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,844 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,977 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,265 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,416 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,543 |
| Widest Countries East to West | 0 | - | 4.92 | 129,610 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,439 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,336 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,106 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,740 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,550 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,823 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,360 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,791 |
| Countries with Double Letters | 0 | - | 4.96 | 96,132 |
| Countries that End in N | 0 | - | 4.95 | 171,017 |
| Countries with Five Letters | 0 | - | 4.96 | 282,239 |
| Countries with Six Letters | 0 | - | 4.94 | 213,443 |
| Countries with W | 0 | - | 4.97 | 160,254 |
| Countries with Z | 0 | - | 4.98 | 291,324 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,613 |
| Countries That End in U | 0 | - | 4.95 | 120,804 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,375 |
| Countries that End in O | 0 | - | 4.92 | 159,481 |
| Countries that End in R | 0 | - | 4.87 | 118,943 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,701 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,991 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,630 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,427 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,348 |
| Countries That End in Y | 0 | - | 4.91 | 185,848 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,835 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,802 |
| Countries that End in I | 0 | - | 4.94 | 135,060 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,012 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,787 |
| Countries That End in NIA | 0 | - | 4.92 | 109,742 |
| Countries That End in BIA | 0 | - | 4.93 | 149,153 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,054 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,382 |
| Countries That End in RIA | 0 | - | 4.93 | 126,774 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,974 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,482 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,639 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,035 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,600 |
