| Countries by Number of Books Published | 0 | - | 4.95 | 73,113 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,895,110 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,825 |
| NATO Countries | 0 | - | 4.98 | 283,533 |
| EU Countries Quiz | 0 | - | 4.99 | 278,044 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,481 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,080 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,457 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,809 |
| Countries with NO Military | 0 | - | 4.97 | 63,439 |
| Landlocked Countries | 0 | - | 4.99 | 426,097 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,726 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,323 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,173 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,166 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,172 |
| Buddhist Countries | 0 | - | 4.96 | 145,125 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 336,986 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,722 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,805,763 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,611 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,562 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,565 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,993 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,843 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,095 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,821 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,377 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,942 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,182 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 39,520 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,947 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,658 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,387 |
| Himalayan Countries | 0 | - | 4.93 | 140,340 |
| Andean Countries | 0 | - | 4.94 | 85,520 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,667 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,080 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,239 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,469 |
| Danube Countries | 0 | - | 4.97 | 72,432 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,626 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,861 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,170 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,651 |
| European Landlocked Countries | 0 | - | 4.99 | 147,628 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,339 |
| Countries with the Most Species | 0 | - | 4.99 | 103,581 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,435 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,783 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,892 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,856 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,591 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,035 |
| Countries in the Alps | 0 | - | 4.87 | 118,810 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,684 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,914 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,977 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,041 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,985 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,279 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,431 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,882 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,441 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,198 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,893 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,754 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,574 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,819 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,907 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,898 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,632 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,184 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,707 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,811 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,205 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,528 |
| Largest Countries By Category | 0 | - | 4.97 | 158,895 |
| Countries by Countries | 0 | - | 4.96 | 63,664 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,126 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,636 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,746 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,807 |
| Island Countries | 0 | - | 4.99 | 712,636 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,990 |
| Northernmost Countries | 0 | - | 4.99 | 364,114 |
| Countries of South America | 0 | - | 5.00 | 932,974 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,734 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,889,996 |
| "Land" Countries | 0 | - | 4.98 | 338,440 |
| Countries that Start with A | 0 | - | 4.98 | 2,176,126 |
| Countries that Start with B | 0 | - | 4.95 | 2,306,836 |
| Countries that Start with C | 0 | - | 4.96 | 1,831,751 |
| Countries that Start with D | 0 | - | 4.96 | 716,633 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,332 |
| Countries that Start with G | 0 | - | 4.97 | 1,511,782 |
| Countries that Start with H | 0 | - | 4.96 | 609,723 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,761 |
| Countries that Start with J | 0 | - | 4.98 | 607,113 |
| Countries that Start with K | 0 | - | 4.97 | 820,907 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,001 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,057 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,203 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,393 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,038 |
| Countries that Start with U | 0 | - | 4.97 | 908,584 |
| Countries that Start with V | 0 | - | 4.98 | 612,093 |
| Countries that Start with F | 0 | - | 4.83 | 621,414 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,462 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,458 |
| Orthodox Countries | 0 | - | 4.92 | 132,828 |
| Richest Island Countries | 0 | - | 4.85 | 101,237 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,318 |
| 10 Easternmost Countries in Africa | 0 | - | 4.98 | 25,129 |
| Monarchies of Europe | 0 | - | 4.90 | 98,891 |
| Monarchies of Asia | 0 | - | 4.97 | 71,516 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,138 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,296 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,217 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,184 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,499 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,793 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,945 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,961 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,004 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,104 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,573 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,169 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,373 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,835 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,549 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,883 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,615 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,108 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,221 |
| Countries with Megacities | 0 | - | 4.99 | 267,249 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,908 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,172 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,222 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,284 |
| Countries by Official Language | 0 | - | 4.95 | 196,038 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,682 |
| Countries in their Native Language | 0 | - | 4.99 | 199,771 |
| Independence from Whom | 0 | - | 4.99 | 213,123 |
| Subdivisions by Country | 0 | - | 4.87 | 50,626 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,477 |
| Megadiverse Countries | 0 | - | 4.96 | 135,293 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,976 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,546 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,708 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,232 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,296 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,862 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,139 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,575 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,082 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,262 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,576 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,389 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,450 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,157 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,859 |
| Richest Countries A-Z | 0 | - | 4.91 | 104,075 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,315 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,729 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,305 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,115 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,588 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,643 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,463 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,566 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,764 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,713 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,770 |
| Widest Countries East to West | 0 | - | 4.92 | 130,600 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,604 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,277 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,525 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,075 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,002 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,501 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,509 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,897 |
| Countries with Double Letters | 0 | - | 4.96 | 97,126 |
| Countries that End in N | 0 | - | 4.95 | 172,001 |
| Countries with Five Letters | 0 | - | 4.96 | 283,941 |
| Countries with Six Letters | 0 | - | 4.94 | 214,536 |
| Countries with W | 0 | - | 4.96 | 160,993 |
| Countries with Z | 0 | - | 4.98 | 292,514 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,320 |
| Countries That End in U | 0 | - | 4.95 | 121,210 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,145 |
| Countries that End in O | 0 | - | 4.92 | 160,233 |
| Countries that End in R | 0 | - | 4.87 | 119,197 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,956 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,899 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,182 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,850 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,779 |
| Countries That End in Y | 0 | - | 4.91 | 186,099 |
