| Countries of the World Quiz | 0 | - | 5.00 | 47,920,591 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,011 |
| NATO Countries | 0 | - | 4.98 | 283,690 |
| EU Countries Quiz | 0 | - | 4.99 | 278,251 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,615 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,292 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,587 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,870 |
| Countries with NO Military | 0 | - | 4.97 | 63,495 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,135 |
| Landlocked Countries | 0 | - | 4.99 | 426,558 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,800 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,372 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,213 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,184 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,016 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,226 |
| Buddhist Countries | 0 | - | 4.96 | 145,166 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,090 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,785 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,913 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,549 |
| Himalayan Countries | 0 | - | 4.93 | 140,485 |
| Andean Countries | 0 | - | 4.94 | 85,620 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,752 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,220 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,317 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,551 |
| Danube Countries | 0 | - | 4.97 | 72,471 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,683 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,902 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,268 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,738 |
| European Landlocked Countries | 0 | - | 4.99 | 147,671 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,400 |
| Countries with the Most Species | 0 | - | 4.99 | 103,605 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,510 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,791 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,913 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,876 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,616 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,072 |
| Countries in the Alps | 0 | - | 4.87 | 118,858 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,795 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,995 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,011 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,091 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,040 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,323 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,471 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,925 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,464 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,238 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,916 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,782 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,613 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,850 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,951 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,995 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,659 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,592 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,753 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,955 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,310 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,554 |
| Largest Countries By Category | 0 | - | 4.97 | 158,951 |
| Countries by Countries | 0 | - | 4.97 | 63,711 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,154 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,972 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,855 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,001 |
| Island Countries | 0 | - | 4.99 | 712,761 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,381 |
| Northernmost Countries | 0 | - | 4.99 | 364,289 |
| Countries of South America | 0 | - | 5.00 | 933,414 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,408 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,004 |
| "Land" Countries | 0 | - | 4.98 | 338,545 |
| Countries that Start with A | 0 | - | 4.98 | 2,176,881 |
| Countries that Start with B | 0 | - | 4.95 | 2,307,572 |
| Countries that Start with C | 0 | - | 4.96 | 1,832,331 |
| Countries that Start with D | 0 | - | 4.96 | 717,033 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,800 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,275 |
| Countries that Start with H | 0 | - | 4.96 | 609,997 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,120 |
| Countries that Start with J | 0 | - | 4.98 | 607,391 |
| Countries that Start with K | 0 | - | 4.97 | 821,206 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,393 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,449 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,593 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,935 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,347 |
| Countries that Start with U | 0 | - | 4.97 | 908,819 |
| Countries that Start with V | 0 | - | 4.98 | 612,258 |
| Countries that Start with F | 0 | - | 4.83 | 621,628 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,877 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,505 |
| Orthodox Countries | 0 | - | 4.92 | 132,868 |
| Richest Island Countries | 0 | - | 4.85 | 101,279 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,283 |
| Monarchies of Europe | 0 | - | 4.90 | 98,938 |
| Monarchies of Asia | 0 | - | 4.97 | 71,544 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,201 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,317 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,266 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,248 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,546 |
| Countries by Oil Consumption | 0 | - | 4.96 | 122,232 |
| Largest Economies in 2050 | 0 | - | 4.88 | 111,974 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,147 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,055 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,142 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,609 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,229 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,152 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,320 |
| Countries with Megacities | 0 | - | 4.99 | 267,466 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,987 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,228 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,317 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,332 |
| Countries by Official Language | 0 | - | 4.95 | 196,120 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,783 |
| Countries in their Native Language | 0 | - | 4.99 | 199,842 |
| Independence from Whom | 0 | - | 4.99 | 213,226 |
| Subdivisions by Country | 0 | - | 4.87 | 50,642 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,559 |
| Megadiverse Countries | 0 | - | 4.96 | 145,146 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,033 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,555 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,749 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,238 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,347 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,889 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,183 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,591 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,122 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,639 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,433 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,465 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,176 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,886 |
| Richest Countries A-Z | 0 | - | 4.91 | 104,121 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,324 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,758 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,380 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,156 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,621 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,733 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,483 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,604 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,789 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,727 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,847 |
| Widest Countries East to West | 0 | - | 4.92 | 130,778 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,616 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,306 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,536 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,098 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,040 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,534 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,517 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,907 |
| Countries with Double Letters | 0 | - | 4.96 | 97,224 |
| Countries that End in N | 0 | - | 4.95 | 172,320 |
| Countries with Five Letters | 0 | - | 4.96 | 284,188 |
| Countries with Six Letters | 0 | - | 4.94 | 214,634 |
| Countries with W | 0 | - | 4.96 | 161,055 |
| Countries with Z | 0 | - | 4.98 | 292,618 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,394 |
| Countries That End in U | 0 | - | 4.95 | 121,248 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,204 |
| Countries that End in O | 0 | - | 4.92 | 160,269 |
| Countries that End in R | 0 | - | 4.87 | 119,216 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,979 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,967 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,228 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,881 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,809 |
| Countries That End in Y | 0 | - | 4.91 | 186,114 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,538 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,327 |
| Countries that End in I | 0 | - | 4.94 | 135,362 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,697 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,091 |
| Countries That End in NIA | 0 | - | 4.92 | 110,098 |
| Countries That End in BIA | 0 | - | 4.93 | 149,644 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,812 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,812 |
| Countries That End in RIA | 0 | - | 4.93 | 127,091 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,448 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,753 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,262 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,716 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,276 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,842 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,370 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,555 |
