| Majority Muslim Countries | 0 | - | 4.98 | 375,506 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,206 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,580 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,495 |
| Buddhist Countries | 0 | - | 4.96 | 144,602 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,761 |
| Orthodox Countries | 0 | - | 4.92 | 132,231 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,647 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,998 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,584,686 |
| NATO Countries | 0 | - | 4.98 | 281,524 |
| EU Countries Quiz | 0 | - | 4.99 | 275,494 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,297 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 274,435 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,938 |
| Countries with NO Military | 0 | - | 4.97 | 62,627 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,792 |
| Landlocked Countries | 0 | - | 4.99 | 421,999 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,672 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,718 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,910 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,709 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,919 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,952 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,778,902 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,463 |
| Himalayan Countries | 0 | - | 4.94 | 138,742 |
| Andean Countries | 0 | - | 4.93 | 84,613 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,813 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,834 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,436 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,812 |
| Danube Countries | 0 | - | 4.97 | 72,012 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,016 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,423 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,315 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,794 |
| European Landlocked Countries | 0 | - | 4.99 | 147,147 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,647 |
| Countries with the Most Species | 0 | - | 4.99 | 103,244 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,771 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,595 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,723 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,544 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,232 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,663 |
| Countries in the Alps | 0 | - | 4.87 | 118,211 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,147 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,045 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,650 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,599 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,513 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,946 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,676 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,495 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,181 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,852 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,656 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,529 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,231 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,471 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,524 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,918 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,310 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 63,821 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,079 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,955 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,119 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,234 |
| Largest Countries By Category | 0 | - | 4.97 | 158,217 |
| Countries by Countries | 0 | - | 4.96 | 63,224 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,676 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,588 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,502 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,275 |
| Island Countries | 0 | - | 4.99 | 711,058 |
| Sharia Law Countries | 0 | - | 4.48 | 63,788 |
| Countries with the Most Cathedrals | 0 | - | 4.48 | 46,716 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,899 |
| Northernmost Countries | 0 | - | 4.99 | 361,969 |
| Countries of South America | 0 | - | 5.00 | 927,393 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,924 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,877,370 |
| "Land" Countries | 0 | - | 4.98 | 337,345 |
| Countries that Start with A | 0 | - | 4.98 | 2,166,432 |
| Countries that Start with B | 0 | - | 4.95 | 2,297,842 |
| Countries that Start with C | 0 | - | 4.96 | 1,824,831 |
| Countries that Start with D | 0 | - | 4.96 | 711,636 |
| Countries that Start with E | 0 | - | 4.95 | 1,379,516 |
| Countries that Start with G | 0 | - | 4.97 | 1,505,784 |
| Countries that Start with H | 0 | - | 4.96 | 606,160 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,138 |
| Countries that Start with J | 0 | - | 4.98 | 603,767 |
| Countries that Start with K | 0 | - | 4.97 | 817,298 |
| Countries that Start with L | 0 | - | 4.98 | 1,092,503 |
| Countries that Start with N | 0 | - | 4.93 | 1,119,542 |
| Countries that Start with P | 0 | - | 4.94 | 1,217,947 |
| Countries that Start with S | 0 | - | 4.98 | 1,757,386 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,198 |
| Countries that Start with U | 0 | - | 4.97 | 905,607 |
| Countries that Start with V | 0 | - | 4.98 | 610,113 |
| Countries that Start with F | 0 | - | 4.83 | 618,689 |
| Countries that Start with M | 0 | - | 4.97 | 1,383,680 |
| Richest Island Countries | 0 | - | 4.84 | 100,773 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,383,713 |
| Monarchies of Europe | 0 | - | 4.90 | 98,339 |
| Monarchies of Asia | 0 | - | 4.97 | 71,216 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,121 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,012 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,634 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,965 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,522 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,594 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,526 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,511 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,707 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,473 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,590 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,904 |
| Countries with Megacities | 0 | - | 4.99 | 264,577 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,745 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,470 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,001 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,545 |
| Countries by Official Language | 0 | - | 4.95 | 195,252 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,379 |
| Countries in their Native Language | 0 | - | 4.99 | 199,046 |
| Independence from Whom | 0 | - | 4.99 | 212,101 |
| Subdivisions by Country | 0 | - | 4.86 | 50,431 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,734 |
| Megadiverse Countries | 0 | - | 4.96 | 135,014 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,093 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,350 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,237 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,101 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,141 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,597 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,470 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,032 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,660 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,146 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,671 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,883 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,758 |
| Catholic Countries | 0 | - | 4.79 | 215,158 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,205 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,964 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,368 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,442 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,050 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,350 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,099 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,280 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,997 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,195 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,894 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,013 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,300 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,440 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,575 |
| Widest Countries East to West | 0 | - | 4.92 | 129,647 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,458 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,381 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,122 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,769 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,601 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,873 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,373 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,797 |
| Countries with Double Letters | 0 | - | 4.96 | 96,233 |
| Countries that End in N | 0 | - | 4.95 | 171,118 |
| Countries with Five Letters | 0 | - | 4.96 | 282,456 |
| Countries with Six Letters | 0 | - | 4.94 | 213,546 |
| Countries with W | 0 | - | 4.97 | 160,322 |
| Countries with Z | 0 | - | 4.98 | 291,441 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,693 |
| Countries That End in U | 0 | - | 4.95 | 120,851 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,453 |
| Countries that End in O | 0 | - | 4.92 | 159,506 |
| Countries that End in R | 0 | - | 4.87 | 118,965 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,729 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,079 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,690 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,468 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,395 |
| Countries That End in Y | 0 | - | 4.91 | 185,870 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,911 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,851 |
| Countries that End in I | 0 | - | 4.94 | 135,088 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,094 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,821 |
| Countries That End in NIA | 0 | - | 4.92 | 109,783 |
| Countries That End in BIA | 0 | - | 4.93 | 149,194 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,115 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,422 |
| Countries That End in RIA | 0 | - | 4.93 | 126,803 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,017 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,595 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,691 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,113 |
