| Countries with the Most Military Troops | 0 | - | 4.95 | 286,896 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,086 |
| Countries with NO Military | 0 | - | 4.97 | 61,780 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,239,372 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,483 |
| NATO Countries | 0 | - | 4.98 | 278,672 |
| EU Countries Quiz | 0 | - | 4.99 | 272,247 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,389 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,710 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,298 |
| Landlocked Countries | 0 | - | 4.99 | 417,564 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,528 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,223 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,537 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,211 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,696 |
| Buddhist Countries | 0 | - | 4.96 | 143,552 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,271 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,941 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,748,004 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,349 |
| Himalayan Countries | 0 | - | 4.94 | 136,871 |
| Andean Countries | 0 | - | 4.95 | 83,655 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,916 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,239 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,585 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,171 |
| Countries in World War I | 0 | - | 4.88 | 227,643 |
| Danube Countries | 0 | - | 4.97 | 71,519 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,351 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,933 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,380 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,438 |
| European Landlocked Countries | 0 | - | 4.99 | 146,234 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,937 |
| Countries with the Most Species | 0 | - | 4.99 | 102,586 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,503 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,060 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,373 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,546 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,222 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,881 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,264 |
| Countries in the Alps | 0 | - | 4.86 | 117,480 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,998 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,107 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,333 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,836 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,938 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,354 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,113 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,074 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,882 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,423 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,416 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,263 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,823 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,086 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,097 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,928 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,967 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,492 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,354 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,597 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,873 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,898 |
| Largest Countries By Category | 0 | - | 4.97 | 157,427 |
| Countries by Countries | 0 | - | 4.96 | 62,709 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,194 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,870 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,234 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,405 |
| Island Countries | 0 | - | 4.99 | 709,228 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,606 |
| Northernmost Countries | 0 | - | 4.99 | 359,897 |
| Countries of South America | 0 | - | 5.00 | 921,178 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,863 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,862,150 |
| "Land" Countries | 0 | - | 4.98 | 335,406 |
| Countries that Start with A | 0 | - | 4.98 | 2,156,237 |
| Countries that Start with B | 0 | - | 4.95 | 2,288,318 |
| Countries that Start with C | 0 | - | 4.96 | 1,817,110 |
| Countries that Start with D | 0 | - | 4.96 | 706,189 |
| Countries that Start with E | 0 | - | 4.95 | 1,373,143 |
| Countries that Start with G | 0 | - | 4.97 | 1,498,702 |
| Countries that Start with H | 0 | - | 4.96 | 601,825 |
| Countries that Start with I | 0 | - | 4.92 | 1,284,801 |
| Countries that Start with J | 0 | - | 4.98 | 599,794 |
| Countries that Start with K | 0 | - | 4.97 | 812,931 |
| Countries that Start with L | 0 | - | 4.98 | 1,087,600 |
| Countries that Start with N | 0 | - | 4.93 | 1,114,246 |
| Countries that Start with P | 0 | - | 4.94 | 1,213,002 |
| Countries that Start with S | 0 | - | 4.98 | 1,750,550 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,505 |
| Countries that Start with U | 0 | - | 4.97 | 902,584 |
| Countries that Start with V | 0 | - | 4.98 | 607,698 |
| Countries that Start with F | 0 | - | 4.83 | 615,370 |
| Countries that Start with M | 0 | - | 4.97 | 1,378,164 |
| Countries with U.S. Troops | 0 | - | 4.38 | 131,926 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,848 |
| Orthodox Countries | 0 | - | 4.92 | 131,101 |
| Richest Island Countries | 0 | - | 4.84 | 100,118 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,814 |
| Monarchies of Europe | 0 | - | 4.90 | 97,801 |
| Monarchies of Asia | 0 | - | 4.97 | 70,896 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,317 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,715 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,956 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,894 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,200 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,895 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,092 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 269,407 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 103,835 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,214 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,286 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,654 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,033 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,597 |
| Countries with Megacities | 0 | - | 4.99 | 249,612 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,438 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,737 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,783 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,699 |
| Countries by Official Language | 0 | - | 4.95 | 194,389 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,205 |
| Countries in their Native Language | 0 | - | 4.99 | 197,957 |
| Independence from Whom | 0 | - | 4.99 | 211,055 |
| Subdivisions by Country | 0 | - | 4.86 | 50,239 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,509 |
| Megadiverse Countries | 0 | - | 4.96 | 134,673 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,092 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,131 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,686 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,976 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,556 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,292 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,768 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,690 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,431 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,826 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,571 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,639 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,736 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,702 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,583 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,556 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,661 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,867 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,255 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,791 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,512 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,996 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,387 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,569 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,723 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,194 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,186 |
| Widest Countries East to West | 0 | - | 4.92 | 129,250 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,351 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,786 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,963 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,415 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,080 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,440 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,175 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,703 |
| Countries with Double Letters | 0 | - | 4.97 | 94,763 |
| Countries that End in N | 0 | - | 4.95 | 169,192 |
| Countries with Five Letters | 0 | - | 4.96 | 276,480 |
| Countries with Six Letters | 0 | - | 4.94 | 212,092 |
| Countries with W | 0 | - | 4.97 | 159,277 |
| Countries with Z | 0 | - | 4.98 | 289,440 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,479 |
| Countries That End in U | 0 | - | 4.95 | 120,274 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,500 |
| Countries that End in O | 0 | - | 4.92 | 159,085 |
| Countries that End in R | 0 | - | 4.87 | 118,644 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,423 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,072 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,941 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,960 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,549 |
| Countries That End in Y | 0 | - | 4.90 | 185,562 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,039 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,261 |
| Countries that End in I | 0 | - | 4.94 | 134,766 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,866 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,493 |
| Countries That End in NIA | 0 | - | 4.92 | 109,414 |
| Countries That End in BIA | 0 | - | 4.93 | 148,704 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,566 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,919 |
| Countries That End in RIA | 0 | - | 4.93 | 126,432 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,509 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,355 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,026 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,365 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,975 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,243 |
