| Quiz | Points | Best | Rating | Takes |
|---|
| Countries that Start with A | 0 | - | 4.96 | 1,907,751 |
| Countries that Start with B | 0 | - | 4.93 | 2,046,363 |
| Countries that Start with C | 0 | - | 4.94 | 1,616,405 |
| Countries that Start with D | 0 | - | 4.94 | 573,939 |
| Countries that Start with E | 0 | - | 4.92 | 1,208,046 |
| Countries that Start with G | 0 | - | 4.95 | 1,327,282 |
| Countries that Start with H | 0 | - | 4.92 | 489,263 |
| Countries that Start with I | 0 | - | 4.90 | 1,140,226 |
| Countries that Start with J | 0 | - | 4.97 | 493,166 |
| Countries that Start with K | 0 | - | 4.94 | 694,812 |
| Countries that Start with L | 0 | - | 4.98 | 952,013 |
| Countries that Start with N | 0 | - | 4.89 | 978,672 |
| Countries that Start with P | 0 | - | 4.89 | 1,081,930 |
| Countries that Start with S | 0 | - | 4.97 | 1,579,309 |
| Countries that Start with U | 0 | - | 4.96 | 806,083 |
| Countries that Start with V | 0 | - | 4.97 | 540,664 |
| Countries that Start with M | 0 | - | 4.94 | 1,233,341 |
| One Country By Letter By Continent | 0 | - | 4.99 | 68,150 |
| Countries that Start with T | 0 | - | 4.80 | 892,676 |
| Countries that Start with F | 0 | - | 4.69 | 524,246 |
| Countries that Start with R | 0 | - | 4.40 | 377,444 |
| Richest Countries A-Z | 0 | - | 4.85 | 85,472 |
| Countries Bordering "U" Countries | 0 | - | 4.80 | 19,207 |
| NATO Countries Quiz | 0 | - | 4.98 | 221,019 |
| EU Countries Quiz | 0 | - | 4.99 | 224,019 |
| Countries with the Most Military Troops | 0 | - | 4.93 | 222,142 |
| Countries with Nuclear Weapons | 0 | - | 4.88 | 214,276 |
| Top Five Countries by Religion | 0 | - | 4.88 | 137,624 |
| Countries with the Most Elite Universities | 0 | - | 4.93 | 96,753 |
| Countries with NO Military | 0 | - | 4.97 | 47,930 |
| Countries by Number of Books Published | 0 | - | 4.96 | 62,249 |
| Countries of the World Quiz | 0 | - | 5.00 | 39,919,658 |
| Majority Muslim Countries | 0 | - | 4.97 | 309,778 |
| Countries with the Most Christians | 0 | - | 4.93 | 104,342 |
| Countries with the Most Tanks | 0 | - | 4.89 | 73,987 |
| Biggest Export Partners For Every Country | 0 | - | 4.99 | 39,760 |
| Top Oil Reserve Countries | 0 | - | 4.92 | 65,109 |
| Least Christian Countries with Exceptions | 0 | - | 4.91 | 70,477 |
| Buddhist Countries | 0 | - | 4.97 | 129,116 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.93 | 4,955,695 |
| Countries with the Most Catholics | 0 | - | 4.93 | 90,823 |
| Orthodox Countries | 0 | - | 4.92 | 114,875 |
| Monarchies of Europe | 0 | - | 4.86 | 69,245 |
| Monarchies of Asia | 0 | - | 4.95 | 52,524 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 278,022 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 203,010 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.96 | 103,204 |
| Countries with the Most Billionaires | 0 | - | 4.94 | 276,614 |
| Countries with the Most Muslims | 0 | - | 4.91 | 129,699 |
| Countries with the Most Billionaires per Capita | 0 | - | 4.85 | 70,502 |
| Countries with the Most Exports | 0 | - | 4.97 | 120,831 |
| Countries by Oil Consumption | 0 | - | 4.96 | 109,990 |
| Largest Economies in 2050 | 0 | - | 4.90 | 97,532 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 235,379 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 70,867 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.88 | 59,544 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 95,950 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 158,712 |
| Spanish-Speaking Countries | 0 | - | 4.88 | 336,027 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 311,456 |
| Countries with the Most Tourists Quiz | 0 | - | 4.93 | 347,255 |
| Island Countries Quiz | 0 | - | 4.99 | 632,790 |
| Sahara Desert Countries | 0 | - | 4.98 | 122,591 |
| Himalayan Countries | 0 | - | 4.95 | 99,980 |
| Andean Countries | 0 | - | 4.92 | 55,439 |
| Countries with the Oldest Median Age | 0 | - | 4.88 | 56,365 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 47,609 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 100,602 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 51,955 |
| Danube Countries | 0 | - | 4.97 | 55,901 |
| Countries With an "Ish" Demonym | 0 | - | 4.96 | 90,983 |
| Countries With an "Ese" Demonym | 0 | - | 4.95 | 64,281 |
| Countries with the Worst Passports | 0 | - | 4.88 | 48,108 |
| Countries with the Most Immigrants | 0 | - | 4.84 | 107,341 |
| European Landlocked Countries | 0 | - | 4.99 | 114,081 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,037 |
| Countries with the Most Species | 0 | - | 4.99 | 88,909 |
| Tropic of Cancer Countries | 0 | - | 4.93 | 44,233 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,591 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 46,978 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 58,159 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 48,171 |
| Countries in the Alps | 0 | - | 4.85 | 100,811 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 83,889 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 84,496 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 70,657 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,115 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 92,678 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.88 | 86,395 |
| Five Biggest Countries by Latitude | 0 | - | 4.98 | 88,419 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,362 |
| Biggest Country by Body of Water | 0 | - | 4.97 | 44,764 |
| Countries with the Most Container Port Traffic | 0 | - | 4.93 | 53,624 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.90 | 68,404 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 48,065 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 36,125 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.91 | 94,387 |
| Arctic Ocean Countries | 0 | - | 4.95 | 70,976 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,464 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 95,094 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 60,556 |
| Countries that Host the Most Refugees | 0 | - | 4.92 | 52,475 |
| All Countries of the World by Area with Hints | 0 | - | 4.96 | 189,222 |
| World Countries - Blind Typing | 0 | - | 5.00 | 69,607 |
| Countries in Their Own Alphabet | 0 | - | 4.94 | 41,595 |
| Largest Countries By Category | 0 | - | 4.97 | 142,734 |
| Countries by Countries | 0 | - | 4.93 | 53,443 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 79,467 |
| Large Countries with Small Economies | 0 | - | 4.92 | 54,600 |
| Country Flags With Only Two Colors | 0 | - | 4.87 | 76,469 |
| Biggest Countries by Area | 0 | - | 4.99 | 915,531 |
| Northernmost Countries | 0 | - | 4.98 | 323,118 |
| Countries of South America | 0 | - | 5.00 | 772,497 |
| Countries of Oceania | 0 | - | 5.00 | 866,405 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,056,554 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,524,804 |
| Top 10 Coldest European Countries | 0 | - | 4.95 | 178,458 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 113,776 |
| Top 10 Coldest Asian Countries | 0 | - | 4.96 | 115,315 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 119,254 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.96 | 57,729 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.86 | 66,345 |
| Japan A-Z | 0 | - | 4.46 | 38,157 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,291,446 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 345,458 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 122,368 |
| Countries with Megacities | 0 | - | 4.99 | 191,954 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 166,869 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 95,695 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 92,016 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 61,615 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 242,136 |
| Countries by Official Language | 0 | - | 4.94 | 152,142 |
| OPEC Countries Quiz | 0 | - | 4.70 | 80,170 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.89 | 243,045 |
| Countries in their Native Language | 0 | - | 4.97 | 175,427 |
| Independence from Whom | 0 | - | 4.99 | 180,555 |
| Subdivisions by Country | 0 | - | 4.84 | 45,931 |
| Who Controlled These Colonies? | 0 | - | 4.84 | 110,130 |
| Countries in World War I | 0 | - | 4.91 | 206,480 |
| Megadiverse Countries | 0 | - | 4.94 | 123,925 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 204,259 |
| Countries With the Most English Speakers | 0 | - | 4.84 | 88,400 |
| Countries with Multiple Big Islands | 0 | - | 4.89 | 105,398 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.85 | 46,849 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 128,771 |
| Most Recently-Settled Countries | 0 | - | 4.89 | 48,026 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 75,064 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.96 | 143,386 |
| Countries with Multiple Populous Islands | 0 | - | 4.83 | 76,007 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,667 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 41,941 |
| Landmarks of Countries #1 | 0 | - | 4.82 | 100,351 |
| Countries Furthest from the United States | 0 | - | 4.89 | 70,794 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,266 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 50,245 |
| Straight Shot to the Arctic Circle | 0 | - | 4.90 | 57,192 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,003,459 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 79,922 |
| Southernmost Countries of the World | 0 | - | 4.99 | 202,860 |
| Countries by Inland Surface Water | 0 | - | 4.95 | 89,192 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 105,951 |
| Countries With the Most Languages | 0 | - | 4.90 | 169,429 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 85,942 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.82 | 70,053 |
| Countries with the Most Prisoners | 0 | - | 4.91 | 84,454 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 52,557 |
| Widest Countries East to West | 0 | - | 4.91 | 117,778 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,496 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 156,516 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 91,706 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.95 | 84,055 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 116,866 |
| Countries with the Most Desert | 0 | - | 4.91 | 103,541 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 66,052 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.85 | 31,630 |
| Countries with Double Letters | 0 | - | 4.96 | 64,720 |
| Countries that End in N | 0 | - | 4.94 | 129,403 |
| Countries with Five Letters Quiz | 0 | - | 4.95 | 225,484 |
| Countries with Six Letters Quiz | 0 | - | 4.93 | 171,535 |
| Countries with W | 0 | - | 4.97 | 120,080 |
| Countries with Z | 0 | - | 4.98 | 240,044 |
| Countries with Letters Missing | 0 | - | 4.98 | 152,927 |
| Countries That End in U | 0 | - | 4.93 | 105,926 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 86,709 |
| Countries that End in O | 0 | - | 4.90 | 145,657 |
| Countries that End in R | 0 | - | 4.85 | 95,658 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,343 |
| Countries Ending in "IA" | 0 | - | 4.99 | 168,012 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 153,918 |
| Countries by Last Two Letters | 0 | - | 4.89 | 114,511 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 127,656 |
| Countries That End in Y | 0 | - | 4.89 | 160,327 |
| Countries Based on First Two Letters #1 | 0 | - | 4.98 | 158,378 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.89 | 118,910 |
| Countries that End in I | 0 | - | 4.90 | 113,743 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 147,235 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.97 | 86,947 |
| Countries That End in NIA | 0 | - | 4.91 | 99,688 |
| Countries That End in BIA | 0 | - | 4.91 | 124,485 |
