| Countries of the World Quiz | 0 | - | 5.00 | 47,938,319 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,156 |
| NATO Countries | 0 | - | 4.98 | 283,802 |
| EU Countries Quiz | 0 | - | 4.99 | 278,595 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,719 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,446 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,653 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,925 |
| Countries with NO Military | 0 | - | 4.97 | 63,533 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,153 |
| Landlocked Countries | 0 | - | 4.99 | 426,853 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,846 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,406 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,237 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,212 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,122 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,270 |
| Buddhist Countries | 0 | - | 4.96 | 145,202 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,185 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,861 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,809,455 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,717 |
| Himalayan Countries | 0 | - | 4.93 | 140,635 |
| Andean Countries | 0 | - | 4.94 | 85,712 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,832 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,354 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,390 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,621 |
| Danube Countries | 0 | - | 4.97 | 72,508 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,730 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,930 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,348 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,806 |
| European Landlocked Countries | 0 | - | 4.99 | 147,697 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,460 |
| Countries with the Most Species | 0 | - | 4.99 | 103,621 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,565 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,801 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,933 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,899 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,649 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,097 |
| Countries in the Alps | 0 | - | 4.87 | 118,908 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,878 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,045 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,033 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,128 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,079 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,347 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,521 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,961 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,489 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,278 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,932 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,809 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,630 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,884 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,979 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,062 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,688 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,030 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,778 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,100 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,372 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,584 |
| Largest Countries By Category | 0 | - | 4.97 | 159,007 |
| Countries by Countries | 0 | - | 4.97 | 63,751 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,190 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,197 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,930 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,123 |
| Island Countries | 0 | - | 4.99 | 712,854 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,649 |
| Northernmost Countries | 0 | - | 4.99 | 364,409 |
| Countries of South America | 0 | - | 5.00 | 933,691 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,729 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,659 |
| "Land" Countries | 0 | - | 4.98 | 338,777 |
| Countries that Start with A | 0 | - | 4.98 | 2,177,452 |
| Countries that Start with B | 0 | - | 4.95 | 2,308,094 |
| Countries that Start with C | 0 | - | 4.96 | 1,832,714 |
| Countries that Start with D | 0 | - | 4.96 | 717,293 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,082 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,587 |
| Countries that Start with H | 0 | - | 4.96 | 610,167 |
| Countries that Start with I | 0 | - | 4.92 | 1,295,364 |
| Countries that Start with J | 0 | - | 4.98 | 607,571 |
| Countries that Start with K | 0 | - | 4.97 | 821,384 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,640 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,686 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,836 |
| Countries that Start with S | 0 | - | 4.98 | 1,764,260 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,529 |
| Countries that Start with U | 0 | - | 4.97 | 908,944 |
| Countries that Start with V | 0 | - | 4.98 | 612,356 |
| Countries that Start with F | 0 | - | 4.83 | 621,751 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,131 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,549 |
| Orthodox Countries | 0 | - | 4.92 | 132,894 |
| Richest Island Countries | 0 | - | 4.85 | 101,304 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,882 |
| Monarchies of Europe | 0 | - | 4.90 | 98,975 |
| Monarchies of Asia | 0 | - | 4.97 | 71,567 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,251 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,325 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,299 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,298 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,593 |
| Countries by Oil Consumption | 0 | - | 4.96 | 123,978 |
| Largest Economies in 2050 | 0 | - | 4.88 | 112,006 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,311 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,084 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,174 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,639 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,273 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,186 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,392 |
| Countries with Megacities | 0 | - | 4.99 | 267,597 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,038 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,271 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,378 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,374 |
| Countries by Official Language | 0 | - | 4.95 | 196,151 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,831 |
| Countries in their Native Language | 0 | - | 4.99 | 199,880 |
| Independence from Whom | 0 | - | 4.99 | 213,297 |
| Subdivisions by Country | 0 | - | 4.87 | 50,647 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,596 |
| Megadiverse Countries | 0 | - | 4.96 | 147,549 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,069 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,563 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,769 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,244 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,397 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,906 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,223 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,603 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,137 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,280 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,687 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,454 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,482 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,195 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,909 |
| Richest Countries A-Z | 0 | - | 4.91 | 104,159 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,360 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,772 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,427 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,184 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,646 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,802 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,514 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,623 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,811 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,741 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,888 |
| Widest Countries East to West | 0 | - | 4.92 | 130,798 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,623 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,342 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,545 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,121 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,065 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,572 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,525 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,915 |
| Countries with Double Letters | 0 | - | 4.96 | 97,450 |
| Countries that End in N | 0 | - | 4.95 | 172,494 |
| Countries with Five Letters | 0 | - | 4.96 | 284,427 |
| Countries with Six Letters | 0 | - | 4.94 | 214,802 |
| Countries with W | 0 | - | 4.96 | 161,192 |
| Countries with Z | 0 | - | 4.98 | 292,826 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,559 |
| Countries That End in U | 0 | - | 4.95 | 121,327 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,314 |
| Countries that End in O | 0 | - | 4.92 | 160,322 |
| Countries that End in R | 0 | - | 4.87 | 119,252 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,021 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,051 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 182,166 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,068 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,468 |
| Countries That End in Y | 0 | - | 4.91 | 186,146 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,015 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,366 |
| Countries that End in I | 0 | - | 4.94 | 135,386 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,071 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,114 |
| Countries That End in NIA | 0 | - | 4.92 | 110,120 |
| Countries That End in BIA | 0 | - | 4.93 | 149,688 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,872 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,848 |
| Countries That End in RIA | 0 | - | 4.93 | 127,114 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,495 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,836 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,319 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,776 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,329 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,880 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,402 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,578 |
