| Countries of the World Quiz | 0 | - | 5.00 | 47,369,390 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,573 |
| NATO Countries | 0 | - | 4.98 | 279,585 |
| EU Countries Quiz | 0 | - | 4.99 | 273,243 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,714 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 272,272 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,932 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,117 |
| Countries with NO Military | 0 | - | 4.97 | 62,044 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,449 |
| Landlocked Countries | 0 | - | 4.99 | 419,427 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,925 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,224 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,425 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,698 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,111 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,990 |
| Buddhist Countries | 0 | - | 4.96 | 144,173 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,104 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,311 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,759,841 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,194 |
| Himalayan Countries | 0 | - | 4.95 | 137,633 |
| Andean Countries | 0 | - | 4.95 | 84,043 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,295 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,788 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,908 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,407 |
| Danube Countries | 0 | - | 4.97 | 71,714 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,629 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,110 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,732 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,808 |
| European Landlocked Countries | 0 | - | 4.99 | 146,824 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,202 |
| Countries with the Most Species | 0 | - | 4.99 | 102,971 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,347 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,442 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,607 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,343 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,017 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,407 |
| Countries in the Alps | 0 | - | 4.87 | 117,765 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,193 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,470 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,452 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,050 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,157 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,751 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,344 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,239 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,999 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,598 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,511 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,361 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,967 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,233 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,253 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,280 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,093 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,596 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,614 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,583 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,352 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,024 |
| Largest Countries By Category | 0 | - | 4.97 | 157,731 |
| Countries by Countries | 0 | - | 4.96 | 62,890 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,374 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,403 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,729 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,370 |
| Island Countries | 0 | - | 4.99 | 709,973 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,577 |
| Northernmost Countries | 0 | - | 4.99 | 360,703 |
| Countries of South America | 0 | - | 5.00 | 923,609 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,976 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,868,092 |
| "Land" Countries | 0 | - | 4.98 | 335,912 |
| Countries that Start with A | 0 | - | 4.98 | 2,160,059 |
| Countries that Start with B | 0 | - | 4.95 | 2,291,913 |
| Countries that Start with C | 0 | - | 4.96 | 1,820,040 |
| Countries that Start with D | 0 | - | 4.96 | 708,189 |
| Countries that Start with E | 0 | - | 4.95 | 1,375,528 |
| Countries that Start with G | 0 | - | 4.97 | 1,501,238 |
| Countries that Start with H | 0 | - | 4.96 | 603,575 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,693 |
| Countries that Start with J | 0 | - | 4.98 | 601,376 |
| Countries that Start with K | 0 | - | 4.97 | 814,725 |
| Countries that Start with L | 0 | - | 4.98 | 1,089,439 |
| Countries that Start with N | 0 | - | 4.93 | 1,116,430 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,884 |
| Countries that Start with S | 0 | - | 4.98 | 1,753,055 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,851 |
| Countries that Start with U | 0 | - | 4.97 | 903,692 |
| Countries that Start with V | 0 | - | 4.98 | 608,712 |
| Countries that Start with F | 0 | - | 4.83 | 616,672 |
| Countries that Start with M | 0 | - | 4.97 | 1,380,229 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,207 |
| Orthodox Countries | 0 | - | 4.92 | 131,407 |
| Richest Island Countries | 0 | - | 4.84 | 100,369 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,376,821 |
| Monarchies of Europe | 0 | - | 4.90 | 98,016 |
| Monarchies of Asia | 0 | - | 4.97 | 71,016 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,643 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,805 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,229 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,211 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,516 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,330 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,332 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,771 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,145 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,427 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,566 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,018 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,229 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,160 |
| Countries with Megacities | 0 | - | 4.99 | 261,758 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,031 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,068 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,312 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,105 |
| Countries by Official Language | 0 | - | 4.95 | 194,737 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,659 |
| Countries in their Native Language | 0 | - | 4.99 | 198,276 |
| Independence from Whom | 0 | - | 4.99 | 211,437 |
| Subdivisions by Country | 0 | - | 4.86 | 50,303 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,797 |
| Megadiverse Countries | 0 | - | 4.96 | 134,801 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,616 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,207 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,778 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,030 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,762 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,411 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,043 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,869 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,512 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,002 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,100 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,745 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,021 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,806 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,037 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,858 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,809 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,078 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,614 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,991 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,712 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,481 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,583 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,725 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,871 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,298 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,329 |
| Widest Countries East to West | 0 | - | 4.92 | 129,416 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,395 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,007 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,011 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,557 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,280 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,604 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,256 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,734 |
| Countries with Double Letters | 0 | - | 4.97 | 95,167 |
| Countries that End in N | 0 | - | 4.95 | 170,149 |
| Countries with Five Letters | 0 | - | 4.96 | 280,729 |
| Countries with Six Letters | 0 | - | 4.94 | 212,591 |
| Countries with W | 0 | - | 4.97 | 159,572 |
| Countries with Z | 0 | - | 4.98 | 289,915 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,813 |
| Countries That End in U | 0 | - | 4.95 | 120,433 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,822 |
| Countries that End in O | 0 | - | 4.92 | 159,222 |
| Countries that End in R | 0 | - | 4.87 | 118,752 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,530 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,417 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,163 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,125 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,715 |
| Countries That End in Y | 0 | - | 4.91 | 185,664 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,317 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,481 |
| Countries that End in I | 0 | - | 4.94 | 134,899 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,162 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,599 |
| Countries That End in NIA | 0 | - | 4.92 | 109,542 |
| Countries That End in BIA | 0 | - | 4.93 | 148,885 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,778 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,105 |
| Countries That End in RIA | 0 | - | 4.93 | 126,567 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,683 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,829 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,288 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,668 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,204 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,359 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,716 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,283 |
