| NATO Countries | 0 | - | 4.98 | 284,211 |
| EU Countries Quiz | 0 | - | 4.99 | 279,131 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,999,479 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,616 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 292,082 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 278,262 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,912 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 150,103 |
| Countries with NO Military | 0 | - | 4.97 | 63,670 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,423 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,237 |
| Landlocked Countries | 0 | - | 4.99 | 427,618 |
| All OPEC Countries Ever | 0 | - | 4.70 | 100,480 |
| Countries with the Most Christians | 0 | - | 4.93 | 145,007 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,514 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,307 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,273 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,395 |
| Buddhist Countries | 0 | - | 4.96 | 145,304 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,454 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 125,090 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,815,015 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,092 |
| Himalayan Countries | 0 | - | 4.93 | 140,978 |
| Andean Countries | 0 | - | 4.94 | 85,882 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,989 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,602 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,536 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,742 |
| Danube Countries | 0 | - | 4.97 | 72,600 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,859 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,008 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,516 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,987 |
| European Landlocked Countries | 0 | - | 4.99 | 147,810 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,592 |
| Countries with the Most Species | 0 | - | 4.99 | 103,667 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,694 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,827 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,968 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,949 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,702 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,166 |
| Countries in the Alps | 0 | - | 4.87 | 119,035 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,100 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,239 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,088 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,212 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,179 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,419 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,633 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,029 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,532 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,346 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,972 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,849 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,700 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,953 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,055 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,228 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,765 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,722 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,884 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,507 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,609 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,636 |
| Largest Countries By Category | 0 | - | 4.97 | 159,154 |
| Countries by Countries | 0 | - | 4.97 | 63,844 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,273 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,946 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,143 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,582 |
| Island Countries | 0 | - | 4.99 | 713,152 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,620 |
| Northernmost Countries | 0 | - | 4.99 | 364,787 |
| Countries of South America | 0 | - | 5.00 | 934,798 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,121 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,368 |
| "Land" Countries | 0 | - | 4.98 | 339,147 |
| Countries that Start with A | 0 | - | 4.98 | 2,179,238 |
| Countries that Start with B | 0 | - | 4.95 | 2,309,872 |
| Countries that Start with C | 0 | - | 4.96 | 1,834,091 |
| Countries that Start with D | 0 | - | 4.96 | 718,276 |
| Countries that Start with E | 0 | - | 4.95 | 1,387,249 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,848 |
| Countries that Start with H | 0 | - | 4.96 | 610,899 |
| Countries that Start with I | 0 | - | 4.92 | 1,296,385 |
| Countries that Start with J | 0 | - | 4.98 | 608,234 |
| Countries that Start with K | 0 | - | 4.97 | 822,109 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,524 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,630 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,736 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,434 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,232 |
| Countries that Start with U | 0 | - | 4.97 | 909,518 |
| Countries that Start with V | 0 | - | 4.98 | 612,745 |
| Countries that Start with F | 0 | - | 4.83 | 622,306 |
| Countries that Start with M | 0 | - | 4.97 | 1,390,063 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,694 |
| Orthodox Countries | 0 | - | 4.92 | 133,006 |
| Richest Island Countries | 0 | - | 4.85 | 101,408 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,221 |
| Monarchies of Europe | 0 | - | 4.90 | 99,075 |
| Monarchies of Asia | 0 | - | 4.97 | 71,640 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,413 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,378 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,427 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,451 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,741 |
| Countries by Oil Consumption | 0 | - | 4.96 | 125,256 |
| Largest Economies in 2050 | 0 | - | 4.88 | 112,109 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,774 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,196 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 85,277 |
| The Only African Country ... | 0 | - | 4.99 | 129,841 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,476 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,761 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,396 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,296 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,619 |
| Countries with Megacities | 0 | - | 4.99 | 268,109 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,271 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,396 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,604 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,505 |
| Countries by Official Language | 0 | - | 4.95 | 196,309 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,060 |
| Countries in their Native Language | 0 | - | 4.99 | 200,022 |
| Independence from Whom | 0 | - | 4.99 | 213,510 |
| Subdivisions by Country | 0 | - | 4.87 | 50,681 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,740 |
| Megadiverse Countries | 0 | - | 4.96 | 149,687 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,202 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,593 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,839 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,271 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,528 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,949 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,365 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,649 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,199 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,297 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,869 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,515 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,527 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,241 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,986 |
| Richest Countries A-Z | 0 | - | 4.91 | 104,309 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,852 |
| Communist Countries in History | 0 | - | 4.63 | 498,894 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,607 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,281 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,753 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,034 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,605 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,720 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,897 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,783 |
| Tallest Countries North to South | 0 | - | 4.85 | 131,004 |
| Widest Countries East to West | 0 | - | 4.92 | 130,896 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,637 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,457 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,583 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,186 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,376 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,646 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,547 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,933 |
| Countries with Double Letters | 0 | - | 4.96 | 97,749 |
| Countries that End in N | 0 | - | 4.95 | 172,751 |
| Countries with Five Letters | 0 | - | 4.96 | 284,808 |
| Countries with Six Letters | 0 | - | 4.94 | 215,085 |
| Countries with W | 0 | - | 4.96 | 161,406 |
| Countries with Z | 0 | - | 4.98 | 293,148 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,774 |
| Countries That End in U | 0 | - | 4.95 | 121,447 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,526 |
| Countries that End in O | 0 | - | 4.92 | 160,419 |
| Countries that End in R | 0 | - | 4.87 | 119,311 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,084 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,238 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 187,473 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,284 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,955 |
| Countries That End in Y | 0 | - | 4.91 | 186,198 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,488 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,471 |
| Countries that End in I | 0 | - | 4.94 | 135,458 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,430 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,176 |
| Countries That End in NIA | 0 | - | 4.92 | 110,189 |
| Countries That End in BIA | 0 | - | 4.93 | 149,785 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,997 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,940 |
| Countries That End in RIA | 0 | - | 4.93 | 127,191 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,584 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 229,053 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,446 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,913 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,475 |
