| Majority Muslim Countries | 0 | - | 4.98 | 378,527 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,856 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,975 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,378 |
| Buddhist Countries | 0 | - | 4.96 | 145,284 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,668 |
| Orthodox Countries | 0 | - | 4.92 | 132,987 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,403 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,735 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,986,791 |
| NATO Countries | 0 | - | 4.98 | 284,097 |
| EU Countries Quiz | 0 | - | 4.99 | 279,002 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 292,007 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 278,140 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 150,062 |
| Countries with NO Military | 0 | - | 4.97 | 63,637 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,208 |
| Landlocked Countries | 0 | - | 4.99 | 427,461 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,489 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,294 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,256 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,458 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,384 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 125,027 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,813,941 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,011 |
| Himalayan Countries | 0 | - | 4.93 | 140,911 |
| Andean Countries | 0 | - | 4.94 | 85,848 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,960 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,555 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,500 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,717 |
| Danube Countries | 0 | - | 4.97 | 72,577 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,838 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,997 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,486 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,957 |
| European Landlocked Countries | 0 | - | 4.99 | 147,798 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,568 |
| Countries with the Most Species | 0 | - | 4.99 | 103,657 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,674 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,822 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,962 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,940 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,691 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,148 |
| Countries in the Alps | 0 | - | 4.87 | 119,008 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,056 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,198 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,076 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,196 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,154 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,408 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,624 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,013 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,522 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,329 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,966 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,839 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,689 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,942 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,044 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,189 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,753 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,619 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,865 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,429 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,558 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,630 |
| Largest Countries By Category | 0 | - | 4.97 | 159,126 |
| Countries by Countries | 0 | - | 4.97 | 63,825 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,253 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,816 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,102 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,491 |
| Island Countries | 0 | - | 4.99 | 713,083 |
| Sharia Law Countries | 0 | - | 4.48 | 64,051 |
| Countries with the Most Cathedrals | 0 | - | 4.48 | 47,491 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,426 |
| Northernmost Countries | 0 | - | 4.99 | 364,701 |
| Countries of South America | 0 | - | 5.00 | 934,608 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,878 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,773 |
| "Land" Countries | 0 | - | 4.98 | 339,086 |
| Countries that Start with A | 0 | - | 4.98 | 2,178,926 |
| Countries that Start with B | 0 | - | 4.95 | 2,309,537 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,816 |
| Countries that Start with D | 0 | - | 4.96 | 718,091 |
| Countries that Start with E | 0 | - | 4.95 | 1,387,019 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,603 |
| Countries that Start with H | 0 | - | 4.96 | 610,758 |
| Countries that Start with I | 0 | - | 4.92 | 1,296,157 |
| Countries that Start with J | 0 | - | 4.98 | 608,126 |
| Countries that Start with K | 0 | - | 4.97 | 821,964 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,341 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,446 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,557 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,207 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,100 |
| Countries that Start with U | 0 | - | 4.97 | 909,384 |
| Countries that Start with V | 0 | - | 4.98 | 612,669 |
| Countries that Start with F | 0 | - | 4.83 | 622,190 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,892 |
| Richest Island Countries | 0 | - | 4.85 | 101,385 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,760 |
| Monarchies of Europe | 0 | - | 4.90 | 99,054 |
| Monarchies of Asia | 0 | - | 4.97 | 71,622 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,383 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,368 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,408 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,709 |
| Countries by Oil Consumption | 0 | - | 4.96 | 125,109 |
| Largest Economies in 2050 | 0 | - | 4.88 | 112,087 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,684 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,166 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 85,248 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,373 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,273 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,566 |
| Countries with Megacities | 0 | - | 4.99 | 267,999 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,215 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,372 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,547 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,475 |
| Countries by Official Language | 0 | - | 4.95 | 196,274 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,009 |
| Countries in their Native Language | 0 | - | 4.99 | 199,991 |
| Independence from Whom | 0 | - | 4.99 | 213,467 |
| Subdivisions by Country | 0 | - | 4.87 | 50,675 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,710 |
| Megadiverse Countries | 0 | - | 4.96 | 149,510 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,173 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,589 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,827 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,265 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,511 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,936 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,326 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,640 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,188 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,291 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,835 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,505 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,234 |
| Catholic Countries | 0 | - | 4.80 | 215,798 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,520 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,230 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,965 |
| Richest Countries A-Z | 0 | - | 4.91 | 104,276 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,410 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,836 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,567 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,259 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,729 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,995 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,581 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,695 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,873 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,776 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,976 |
| Widest Countries East to West | 0 | - | 4.92 | 130,882 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,634 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,432 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,574 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,175 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,153 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,630 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,543 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,928 |
| Countries with Double Letters | 0 | - | 4.96 | 97,711 |
| Countries that End in N | 0 | - | 4.95 | 172,704 |
| Countries with Five Letters | 0 | - | 4.96 | 284,741 |
| Countries with Six Letters | 0 | - | 4.94 | 215,036 |
| Countries with W | 0 | - | 4.96 | 161,367 |
| Countries with Z | 0 | - | 4.98 | 293,100 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,739 |
| Countries That End in U | 0 | - | 4.95 | 121,425 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,487 |
| Countries that End in O | 0 | - | 4.92 | 160,400 |
| Countries that End in R | 0 | - | 4.87 | 119,301 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,075 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,205 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,086 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,258 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,921 |
| Countries That End in Y | 0 | - | 4.91 | 186,190 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,436 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,455 |
| Countries that End in I | 0 | - | 4.94 | 135,442 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,379 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,162 |
| Countries That End in NIA | 0 | - | 4.92 | 110,173 |
| Countries That End in BIA | 0 | - | 4.93 | 149,766 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,970 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,925 |
| Countries That End in RIA | 0 | - | 4.93 | 127,176 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,566 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,012 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,430 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,894 |
