| Countries of the World Quiz | 0 | - | 5.00 | 46,926,875 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,584 |
| NATO Countries | 0 | - | 4.98 | 275,824 |
| EU Countries Quiz | 0 | - | 4.99 | 269,999 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,993 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,387 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,081 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,780 |
| Countries with NO Military | 0 | - | 4.97 | 61,189 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,913 |
| Landlocked Countries | 0 | - | 4.99 | 413,702 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,482 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,286 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,756 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,149 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,067 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,940 |
| Buddhist Countries | 0 | - | 4.96 | 142,963 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,904 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,112 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,612 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,626 |
| Himalayan Countries | 0 | - | 4.95 | 135,391 |
| Andean Countries | 0 | - | 4.94 | 82,837 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,230 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,227 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,918 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,620 |
| Danube Countries | 0 | - | 4.97 | 71,090 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,774 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,543 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,499 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,417 |
| European Landlocked Countries | 0 | - | 4.99 | 145,762 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,224 |
| Countries with the Most Species | 0 | - | 4.99 | 95,246 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,359 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,201 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,371 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,961 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,580 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,954 |
| Countries in the Alps | 0 | - | 4.86 | 116,835 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,580 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,272 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,016 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,428 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,179 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,010 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,588 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,763 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,324 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,067 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,198 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,046 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,457 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,754 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,759 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,088 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,653 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,255 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,777 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,339 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,696 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,607 |
| Largest Countries By Category | 0 | - | 4.97 | 156,773 |
| Countries by Countries | 0 | - | 4.96 | 62,264 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,776 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,105 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,143 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,887 |
| Island Countries | 0 | - | 4.99 | 707,662 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,563 |
| Northernmost Countries | 0 | - | 4.99 | 357,768 |
| Countries of South America | 0 | - | 5.00 | 914,897 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,635 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,653 |
| "Land" Countries | 0 | - | 4.98 | 333,677 |
| Countries that Start with A | 0 | - | 4.97 | 2,147,049 |
| Countries that Start with B | 0 | - | 4.95 | 2,280,051 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,477 |
| Countries that Start with D | 0 | - | 4.96 | 701,656 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,636 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,930 |
| Countries that Start with H | 0 | - | 4.96 | 598,051 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,372 |
| Countries that Start with J | 0 | - | 4.98 | 596,101 |
| Countries that Start with K | 0 | - | 4.97 | 809,480 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,971 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,843 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,650 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,645 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,295 |
| Countries that Start with U | 0 | - | 4.97 | 899,978 |
| Countries that Start with V | 0 | - | 4.98 | 605,149 |
| Countries that Start with F | 0 | - | 4.83 | 612,250 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,478 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,062 |
| Orthodox Countries | 0 | - | 4.91 | 130,404 |
| Richest Island Countries | 0 | - | 4.84 | 99,532 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,536 |
| Monarchies of Europe | 0 | - | 4.90 | 97,337 |
| Monarchies of Asia | 0 | - | 4.97 | 70,612 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,470 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,436 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,293 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,184 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,509 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,560 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,657 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,163 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,961 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,728 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,613 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,923 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,488 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,290 |
| Countries with Megacities | 0 | - | 4.99 | 247,015 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,167 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,007 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,593 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,911 |
| Countries by Official Language | 0 | - | 4.95 | 192,789 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,154 |
| Countries in their Native Language | 0 | - | 4.99 | 196,654 |
| Independence from Whom | 0 | - | 4.99 | 209,715 |
| Subdivisions by Country | 0 | - | 4.86 | 50,070 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,773 |
| Megadiverse Countries | 0 | - | 4.97 | 133,907 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,813 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,921 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,431 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,863 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,675 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,008 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,036 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,159 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,218 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,748 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,583 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,427 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,501 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,508 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,097 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,876 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,337 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,339 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,368 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,998 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,960 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,792 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,863 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,069 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,282 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,951 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,339 |
| Widest Countries East to West | 0 | - | 4.92 | 128,611 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,218 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,225 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,570 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,696 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,639 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,049 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,051 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,586 |
| Countries with Double Letters | 0 | - | 4.97 | 93,400 |
| Countries that End in N | 0 | - | 4.94 | 156,892 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,700 |
| Countries with Six Letters | 0 | - | 4.93 | 210,377 |
| Countries with W | 0 | - | 4.97 | 158,238 |
| Countries with Z | 0 | - | 4.98 | 287,894 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,564 |
| Countries That End in U | 0 | - | 4.95 | 119,523 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,574 |
| Countries that End in O | 0 | - | 4.92 | 158,564 |
| Countries that End in R | 0 | - | 4.87 | 118,277 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,861 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,052 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,343 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,501 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,032 |
| Countries That End in Y | 0 | - | 4.90 | 185,211 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,390 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,696 |
| Countries that End in I | 0 | - | 4.94 | 134,419 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,207 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,198 |
| Countries That End in NIA | 0 | - | 4.92 | 109,013 |
| Countries That End in BIA | 0 | - | 4.92 | 147,721 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,073 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,491 |
| Countries That End in RIA | 0 | - | 4.93 | 126,090 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,013 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,209 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,531 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,891 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,365 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,933 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,130 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,653 |
