| NATO Countries | 0 | - | 4.98 | 283,202 |
| EU Countries Quiz | 0 | - | 4.99 | 277,600 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,841,977 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,412 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,146 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 276,695 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,214 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,668 |
| Countries with NO Military | 0 | - | 4.97 | 63,327 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,058 |
| Landlocked Countries | 0 | - | 4.99 | 425,177 |
| All OPEC Countries Ever | 0 | - | 4.74 | 100,042 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,577 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,219 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,105 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,124 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,041 |
| Buddhist Countries | 0 | - | 4.96 | 145,027 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,809 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,608 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,801,132 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,984 |
| Himalayan Countries | 0 | - | 4.93 | 140,017 |
| Andean Countries | 0 | - | 4.94 | 85,315 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,470 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,831 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,041 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,331 |
| Danube Countries | 0 | - | 4.97 | 72,321 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,498 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,771 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,992 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,498 |
| European Landlocked Countries | 0 | - | 4.99 | 147,543 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,204 |
| Countries with the Most Species | 0 | - | 4.99 | 103,524 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,331 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,752 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,855 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,794 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,529 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,963 |
| Countries in the Alps | 0 | - | 4.87 | 118,692 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,495 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,760 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,923 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,971 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,887 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,196 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,334 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,814 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,381 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,129 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,826 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,700 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,506 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,737 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,835 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,706 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,565 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,711 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,605 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,484 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,017 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,477 |
| Largest Countries By Category | 0 | - | 4.97 | 158,782 |
| Countries by Countries | 0 | - | 4.96 | 63,584 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,054 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,020 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,530 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,419 |
| Island Countries | 0 | - | 4.99 | 712,359 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,188 |
| Northernmost Countries | 0 | - | 4.99 | 363,756 |
| Countries of South America | 0 | - | 5.00 | 931,922 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,457 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,887,651 |
| "Land" Countries | 0 | - | 4.98 | 338,284 |
| Countries that Start with A | 0 | - | 4.98 | 2,174,629 |
| Countries that Start with B | 0 | - | 4.95 | 2,305,460 |
| Countries that Start with C | 0 | - | 4.96 | 1,830,665 |
| Countries that Start with D | 0 | - | 4.96 | 715,877 |
| Countries that Start with E | 0 | - | 4.95 | 1,384,429 |
| Countries that Start with G | 0 | - | 4.97 | 1,510,833 |
| Countries that Start with H | 0 | - | 4.96 | 609,181 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,056 |
| Countries that Start with J | 0 | - | 4.98 | 606,567 |
| Countries that Start with K | 0 | - | 4.97 | 820,352 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,272 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,347 |
| Countries that Start with P | 0 | - | 4.94 | 1,221,543 |
| Countries that Start with S | 0 | - | 4.98 | 1,762,446 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,518 |
| Countries that Start with U | 0 | - | 4.97 | 908,199 |
| Countries that Start with V | 0 | - | 4.98 | 611,774 |
| Countries that Start with F | 0 | - | 4.83 | 620,999 |
| Countries that Start with M | 0 | - | 4.97 | 1,387,694 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,343 |
| Orthodox Countries | 0 | - | 4.92 | 132,736 |
| Richest Island Countries | 0 | - | 4.85 | 101,173 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,392,499 |
| Monarchies of Europe | 0 | - | 4.90 | 98,801 |
| Monarchies of Asia | 0 | - | 4.97 | 71,476 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,952 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,256 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,113 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,100 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,423 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,751 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,890 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,579 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,938 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,030 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,468 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,044 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,025 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,011 |
| Countries with Megacities | 0 | - | 4.99 | 266,847 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,730 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,036 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,045 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,164 |
| Countries by Official Language | 0 | - | 4.95 | 195,905 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,508 |
| Countries in their Native Language | 0 | - | 4.99 | 199,657 |
| Independence from Whom | 0 | - | 4.99 | 212,960 |
| Subdivisions by Country | 0 | - | 4.87 | 50,591 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,362 |
| Megadiverse Countries | 0 | - | 4.96 | 135,249 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,871 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,514 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,440 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,212 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,546 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,816 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,048 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,546 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,816 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,244 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,432 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,351 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,416 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,128 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,793 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,983 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,276 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,665 |
| Communist Countries in History | 0 | - | 4.63 | 497,983 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,156 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,007 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,502 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,433 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,374 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,480 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,678 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,656 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,558 |
| Widest Countries East to West | 0 | - | 4.92 | 130,402 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,584 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,195 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,497 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,024 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,939 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,428 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,481 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,885 |
| Countries with Double Letters | 0 | - | 4.96 | 96,987 |
| Countries that End in N | 0 | - | 4.95 | 171,849 |
| Countries with Five Letters | 0 | - | 4.96 | 283,640 |
| Countries with Six Letters | 0 | - | 4.94 | 214,373 |
| Countries with W | 0 | - | 4.96 | 160,880 |
| Countries with Z | 0 | - | 4.98 | 292,339 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,236 |
| Countries That End in U | 0 | - | 4.95 | 121,154 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,038 |
| Countries that End in O | 0 | - | 4.92 | 160,179 |
| Countries that End in R | 0 | - | 4.87 | 119,155 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,912 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,760 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,103 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,782 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,714 |
| Countries That End in Y | 0 | - | 4.91 | 186,074 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,400 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,233 |
| Countries that End in I | 0 | - | 4.94 | 135,293 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,562 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,031 |
| Countries That End in NIA | 0 | - | 4.92 | 110,022 |
| Countries That End in BIA | 0 | - | 4.93 | 149,547 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,481 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,737 |
| Countries That End in RIA | 0 | - | 4.93 | 127,033 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,350 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,485 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,122 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,561 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,124 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,782 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,299 |
