| Majority Muslim Countries | 0 | - | 4.98 | 374,327 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,499 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,201 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,221 |
| Buddhist Countries | 0 | - | 4.96 | 144,346 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,425 |
| Orthodox Countries | 0 | - | 4.92 | 131,946 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,395 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,739 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,457,640 |
| NATO Countries | 0 | - | 4.98 | 280,408 |
| EU Countries Quiz | 0 | - | 4.99 | 274,231 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,367 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,195 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 148,497 |
| Countries with NO Military | 0 | - | 4.97 | 62,305 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,605 |
| Landlocked Countries | 0 | - | 4.99 | 420,508 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,400 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,553 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,791 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,661 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,435 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,563 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,453 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,699 |
| Himalayan Countries | 0 | - | 4.95 | 138,080 |
| Andean Countries | 0 | - | 4.95 | 84,263 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,483 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,320 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,117 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,558 |
| Danube Countries | 0 | - | 4.97 | 71,831 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,788 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,230 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,963 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,420 |
| European Landlocked Countries | 0 | - | 4.99 | 146,962 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,372 |
| Countries with the Most Species | 0 | - | 4.99 | 103,088 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,529 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,503 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,658 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,443 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,114 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,503 |
| Countries in the Alps | 0 | - | 4.87 | 117,955 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,411 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,703 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,548 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,450 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,305 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,831 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,466 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,337 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,074 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,701 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,565 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,419 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,068 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,349 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,363 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,532 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,177 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,687 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,822 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,155 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,659 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,105 |
| Largest Countries By Category | 0 | - | 4.97 | 157,927 |
| Countries by Countries | 0 | - | 4.97 | 63,008 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,504 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,269 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,033 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,216 |
| Island Countries | 0 | - | 4.99 | 710,372 |
| Sharia Law Countries | 0 | - | 4.48 | 63,697 |
| Countries with the Most Cathedrals | 0 | - | 4.49 | 46,168 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,851 |
| Northernmost Countries | 0 | - | 4.99 | 361,213 |
| Countries of South America | 0 | - | 5.00 | 925,075 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,997 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,871,841 |
| "Land" Countries | 0 | - | 4.98 | 336,358 |
| Countries that Start with A | 0 | - | 4.98 | 2,162,659 |
| Countries that Start with B | 0 | - | 4.95 | 2,294,358 |
| Countries that Start with C | 0 | - | 4.96 | 1,822,082 |
| Countries that Start with D | 0 | - | 4.96 | 709,614 |
| Countries that Start with E | 0 | - | 4.95 | 1,377,191 |
| Countries that Start with G | 0 | - | 4.97 | 1,503,324 |
| Countries that Start with H | 0 | - | 4.96 | 604,763 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,329 |
| Countries that Start with J | 0 | - | 4.98 | 602,452 |
| Countries that Start with K | 0 | - | 4.97 | 815,799 |
| Countries that Start with L | 0 | - | 4.98 | 1,090,760 |
| Countries that Start with N | 0 | - | 4.93 | 1,117,725 |
| Countries that Start with P | 0 | - | 4.94 | 1,216,131 |
| Countries that Start with S | 0 | - | 4.98 | 1,754,816 |
| Countries that Start with T | 0 | - | 4.90 | 1,009,847 |
| Countries that Start with U | 0 | - | 4.97 | 904,507 |
| Countries that Start with V | 0 | - | 4.98 | 609,360 |
| Countries that Start with F | 0 | - | 4.83 | 617,613 |
| Countries that Start with M | 0 | - | 4.97 | 1,381,683 |
| Richest Island Countries | 0 | - | 4.85 | 100,544 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,618 |
| Monarchies of Europe | 0 | - | 4.90 | 98,153 |
| Monarchies of Asia | 0 | - | 4.97 | 71,089 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,833 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,891 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,409 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,712 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,413 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,452 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,522 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,298 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,535 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,186 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,362 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,456 |
| Countries with Megacities | 0 | - | 4.99 | 263,394 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,297 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,240 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,592 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,282 |
| Countries by Official Language | 0 | - | 4.95 | 194,931 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,947 |
| Countries in their Native Language | 0 | - | 4.99 | 198,454 |
| Independence from Whom | 0 | - | 4.99 | 211,710 |
| Subdivisions by Country | 0 | - | 4.86 | 50,360 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,982 |
| Megadiverse Countries | 0 | - | 4.96 | 134,880 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,795 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,257 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,846 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,059 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,911 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,479 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,217 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,936 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,565 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,041 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,339 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,794 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,606 |
| Catholic Countries | 0 | - | 4.79 | 214,961 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,093 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,869 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,187 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,124 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,912 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,196 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,782 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,094 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,830 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,773 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,723 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,853 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,107 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,352 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,432 |
| Widest Countries East to West | 0 | - | 4.92 | 129,504 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,416 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,162 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,061 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,641 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,412 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,703 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,310 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,764 |
| Countries with Double Letters | 0 | - | 4.97 | 95,398 |
| Countries that End in N | 0 | - | 4.95 | 170,434 |
| Countries with Five Letters | 0 | - | 4.96 | 281,377 |
| Countries with Six Letters | 0 | - | 4.94 | 212,845 |
| Countries with W | 0 | - | 4.97 | 159,731 |
| Countries with Z | 0 | - | 4.98 | 290,649 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,996 |
| Countries That End in U | 0 | - | 4.95 | 120,528 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,014 |
| Countries that End in O | 0 | - | 4.92 | 159,293 |
| Countries that End in R | 0 | - | 4.87 | 118,810 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,582 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,627 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,339 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,225 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,843 |
| Countries That End in Y | 0 | - | 4.91 | 185,731 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,542 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,628 |
| Countries that End in I | 0 | - | 4.94 | 134,961 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,741 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,673 |
| Countries That End in NIA | 0 | - | 4.92 | 109,633 |
| Countries That End in BIA | 0 | - | 4.93 | 148,988 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,887 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,214 |
| Countries That End in RIA | 0 | - | 4.93 | 126,654 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,785 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,121 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,430 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,815 |
