| Countries with the Most Muslims | 0 | - | 4.95 | 160,676 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,274 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,618 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,534 |
| Buddhist Countries | 0 | - | 4.96 | 144,630 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,805 |
| Orthodox Countries | 0 | - | 4.92 | 132,265 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,028 |
| Sharia Law Countries | 0 | - | 4.48 | 63,801 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,601,871 |
| NATO Countries | 0 | - | 4.98 | 281,622 |
| EU Countries Quiz | 0 | - | 4.99 | 275,634 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,412 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,572 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,986 |
| Countries with NO Military | 0 | - | 4.97 | 62,663 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,806 |
| Top 10 Most Islamic European Countries | 0 | - | 4.75 | 161,406 |
| Landlocked Countries | 0 | - | 4.99 | 422,211 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,711 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,749 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,921 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,806 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,973 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,004 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,780,398 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,605 |
| Himalayan Countries | 0 | - | 4.95 | 138,850 |
| Andean Countries | 0 | - | 4.93 | 84,681 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,881 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,923 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,511 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,854 |
| Danube Countries | 0 | - | 4.97 | 72,042 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,058 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,455 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,362 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,848 |
| European Landlocked Countries | 0 | - | 4.99 | 147,172 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,687 |
| Countries with the Most Species | 0 | - | 4.99 | 103,267 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,814 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,607 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,732 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,563 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,254 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,691 |
| Countries in the Alps | 0 | - | 4.87 | 118,243 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,263 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,079 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,677 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,624 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,547 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,967 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,700 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,516 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,198 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,876 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,668 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,541 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,244 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,499 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,552 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,967 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,333 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,090 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,127 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,060 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,191 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,254 |
| Largest Countries By Category | 0 | - | 4.97 | 158,255 |
| Countries by Countries | 0 | - | 4.96 | 63,260 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,695 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,760 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,578 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,490 |
| Island Countries | 0 | - | 4.99 | 711,133 |
| Countries with the Most Cathedrals | 0 | - | 4.48 | 46,753 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,170 |
| Northernmost Countries | 0 | - | 4.99 | 362,066 |
| Countries of South America | 0 | - | 5.00 | 927,684 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,410 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,051 |
| "Land" Countries | 0 | - | 4.98 | 337,408 |
| Countries that Start with A | 0 | - | 4.98 | 2,166,918 |
| Countries that Start with B | 0 | - | 4.95 | 2,298,299 |
| Countries that Start with C | 0 | - | 4.96 | 1,825,185 |
| Countries that Start with D | 0 | - | 4.96 | 711,881 |
| Countries that Start with E | 0 | - | 4.95 | 1,379,806 |
| Countries that Start with G | 0 | - | 4.97 | 1,506,069 |
| Countries that Start with H | 0 | - | 4.96 | 606,330 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,356 |
| Countries that Start with J | 0 | - | 4.98 | 603,924 |
| Countries that Start with K | 0 | - | 4.97 | 817,467 |
| Countries that Start with L | 0 | - | 4.98 | 1,092,707 |
| Countries that Start with N | 0 | - | 4.93 | 1,119,775 |
| Countries that Start with P | 0 | - | 4.94 | 1,218,154 |
| Countries that Start with S | 0 | - | 4.98 | 1,757,692 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,362 |
| Countries that Start with U | 0 | - | 4.97 | 905,715 |
| Countries that Start with V | 0 | - | 4.98 | 610,187 |
| Countries that Start with F | 0 | - | 4.83 | 618,819 |
| Countries that Start with M | 0 | - | 4.97 | 1,383,908 |
| Richest Island Countries | 0 | - | 4.85 | 100,801 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,294 |
| Monarchies of Europe | 0 | - | 4.90 | 98,358 |
| Monarchies of Asia | 0 | - | 4.97 | 71,229 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,152 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,030 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,665 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,002 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,535 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,608 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,665 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,536 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,730 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,511 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,608 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,963 |
| Countries with Megacities | 0 | - | 4.99 | 264,695 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,792 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,504 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,058 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,578 |
| Countries by Official Language | 0 | - | 4.95 | 195,302 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,442 |
| Countries in their Native Language | 0 | - | 4.99 | 199,091 |
| Independence from Whom | 0 | - | 4.99 | 212,156 |
| Subdivisions by Country | 0 | - | 4.86 | 50,438 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,771 |
| Megadiverse Countries | 0 | - | 4.96 | 135,037 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,135 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,375 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,247 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,117 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,168 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,609 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,508 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,048 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,671 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,154 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,712 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,899 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,771 |
| Catholic Countries | 0 | - | 4.79 | 215,182 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,219 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,983 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,390 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,478 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,074 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,374 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,136 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,307 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,018 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,272 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,918 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,031 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,322 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,456 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,591 |
| Widest Countries East to West | 0 | - | 4.92 | 129,671 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,462 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,403 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,127 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,783 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,618 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,887 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,380 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,802 |
| Countries with Double Letters | 0 | - | 4.96 | 96,278 |
| Countries that End in N | 0 | - | 4.95 | 171,163 |
| Countries with Five Letters | 0 | - | 4.96 | 282,564 |
| Countries with Six Letters | 0 | - | 4.94 | 213,601 |
| Countries with W | 0 | - | 4.97 | 160,353 |
| Countries with Z | 0 | - | 4.98 | 291,508 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,732 |
| Countries That End in U | 0 | - | 4.95 | 120,864 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,492 |
| Countries that End in O | 0 | - | 4.92 | 159,518 |
| Countries that End in R | 0 | - | 4.87 | 118,975 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,738 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,141 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,709 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,484 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,411 |
| Countries That End in Y | 0 | - | 4.91 | 185,884 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,953 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,872 |
| Countries that End in I | 0 | - | 4.94 | 135,106 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,134 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,827 |
| Countries That End in NIA | 0 | - | 4.92 | 109,796 |
| Countries That End in BIA | 0 | - | 4.93 | 149,224 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,136 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,439 |
| Countries That End in RIA | 0 | - | 4.93 | 126,814 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,033 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,663 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,728 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,149 |
