| Majority Muslim Countries | 0 | - | 4.98 | 372,998 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,638 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,723 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,821 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,027 |
| Orthodox Countries | 0 | - | 4.92 | 131,233 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,098 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,414 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,306,160 |
| NATO Countries | 0 | - | 4.98 | 279,121 |
| EU Countries Quiz | 0 | - | 4.99 | 272,716 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,314 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,710 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,904 |
| Countries with NO Military | 0 | - | 4.97 | 61,911 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,371 |
| Landlocked Countries | 0 | - | 4.99 | 418,431 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,080 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,323 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,622 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,595 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,560 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,135 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,754,329 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,728 |
| Himalayan Countries | 0 | - | 4.94 | 137,196 |
| Andean Countries | 0 | - | 4.95 | 83,806 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,053 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,456 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,742 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,275 |
| Danube Countries | 0 | - | 4.97 | 71,603 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,470 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,001 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,554 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,622 |
| European Landlocked Countries | 0 | - | 4.99 | 146,714 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,052 |
| Countries with the Most Species | 0 | - | 4.99 | 102,857 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,189 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,410 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,569 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,271 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,942 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,322 |
| Countries in the Alps | 0 | - | 4.87 | 117,612 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,085 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,279 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,378 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,931 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,037 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,410 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,219 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,141 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,936 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,512 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,449 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,312 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,888 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,159 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,175 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,092 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,028 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,544 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,462 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,142 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,116 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,960 |
| Largest Countries By Category | 0 | - | 4.97 | 157,559 |
| Countries by Countries | 0 | - | 4.96 | 62,794 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,281 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,616 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,486 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,884 |
| Island Countries | 0 | - | 4.99 | 709,576 |
| Sharia Law Countries | 0 | - | 4.48 | 63,582 |
| Countries with the Most Cathedrals | 0 | - | 4.51 | 45,258 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,618 |
| Northernmost Countries | 0 | - | 4.99 | 360,276 |
| Countries of South America | 0 | - | 5.00 | 922,393 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,322 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,865,177 |
| "Land" Countries | 0 | - | 4.98 | 335,699 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,205 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,240 |
| Countries that Start with C | 0 | - | 4.96 | 1,818,652 |
| Countries that Start with D | 0 | - | 4.96 | 707,244 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,419 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,051 |
| Countries that Start with H | 0 | - | 4.96 | 602,776 |
| Countries that Start with I | 0 | - | 4.92 | 1,285,801 |
| Countries that Start with J | 0 | - | 4.98 | 600,622 |
| Countries that Start with K | 0 | - | 4.97 | 813,730 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,552 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,487 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,000 |
| Countries that Start with S | 0 | - | 4.98 | 1,751,927 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,241 |
| Countries that Start with U | 0 | - | 4.97 | 903,161 |
| Countries that Start with V | 0 | - | 4.98 | 608,237 |
| Countries that Start with F | 0 | - | 4.83 | 616,060 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,245 |
| Richest Island Countries | 0 | - | 4.84 | 100,268 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,803 |
| Monarchies of Europe | 0 | - | 4.90 | 97,926 |
| Monarchies of Asia | 0 | - | 4.97 | 70,959 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,480 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,762 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,054 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,361 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,259 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,237 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,110 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,003 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,326 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,859 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,132 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,883 |
| Countries with Megacities | 0 | - | 4.99 | 256,510 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,750 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,913 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,048 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,914 |
| Countries by Official Language | 0 | - | 4.95 | 194,569 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,438 |
| Countries in their Native Language | 0 | - | 4.99 | 198,118 |
| Independence from Whom | 0 | - | 4.99 | 211,220 |
| Subdivisions by Country | 0 | - | 4.86 | 50,271 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,631 |
| Megadiverse Countries | 0 | - | 4.96 | 134,741 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,475 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,161 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,727 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,005 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,666 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,352 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,906 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,817 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,467 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,970 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,867 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,690 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,402 |
| Catholic Countries | 0 | - | 4.78 | 214,357 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,961 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,754 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,857 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,700 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,749 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,991 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,421 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,886 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,594 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,233 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,477 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,644 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,792 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,243 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,251 |
| Widest Countries East to West | 0 | - | 4.92 | 129,331 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,375 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,910 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,982 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,485 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,171 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,508 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,219 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,720 |
| Countries with Double Letters | 0 | - | 4.97 | 95,024 |
| Countries that End in N | 0 | - | 4.95 | 169,849 |
| Countries with Five Letters | 0 | - | 4.96 | 279,709 |
| Countries with Six Letters | 0 | - | 4.94 | 212,398 |
| Countries with W | 0 | - | 4.97 | 159,482 |
| Countries with Z | 0 | - | 4.98 | 289,720 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,673 |
| Countries That End in U | 0 | - | 4.95 | 120,383 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,693 |
| Countries that End in O | 0 | - | 4.92 | 159,174 |
| Countries that End in R | 0 | - | 4.87 | 118,719 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,495 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,248 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,063 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,055 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,640 |
| Countries That End in Y | 0 | - | 4.90 | 185,632 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,177 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,374 |
| Countries that End in I | 0 | - | 4.94 | 134,842 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,028 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,554 |
| Countries That End in NIA | 0 | - | 4.92 | 109,491 |
| Countries That End in BIA | 0 | - | 4.93 | 148,808 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,671 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,017 |
| Countries That End in RIA | 0 | - | 4.93 | 126,507 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,593 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,585 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,169 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,512 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,063 |
