| Countries of the World Quiz | 0 | - | 5.00 | 41,493,957 |
| NATO Countries Quiz | 0 | - | 4.98 | 228,161 |
| EU Countries Quiz | 0 | - | 4.99 | 230,287 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 228,396 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 233,368 |
| Top Five Countries by Religion | 0 | - | 4.90 | 144,696 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 127,080 |
| Countries with NO Military | 0 | - | 4.97 | 50,507 |
| Countries by Number of Books Published | 0 | - | 4.95 | 64,394 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 331,170 |
| Majority Muslim Countries | 0 | - | 4.97 | 316,137 |
| Countries with the Most Christians | 0 | - | 4.93 | 123,386 |
| Countries with the Most Tanks | 0 | - | 4.89 | 76,394 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 42,285 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 67,119 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,139,680 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 74,099 |
| Buddhist Countries | 0 | - | 4.97 | 131,778 |
| Countries with the Most Millionaires | 0 | - | 4.85 | 85,407 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,204,546 |
| Members of the Arab League | 0 | - | 4.85 | 65,078 |
| Sahara Desert Countries | 0 | - | 4.97 | 129,294 |
| Himalayan Countries | 0 | - | 4.94 | 107,274 |
| Andean Countries | 0 | - | 4.91 | 59,671 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,748 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,439 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,818 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,632 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,953 |
| Danube Countries | 0 | - | 4.96 | 57,056 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,079 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,163 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,250 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,084 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,374 |
| European Landlocked Countries | 0 | - | 4.99 | 136,742 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,492 |
| Countries with the Most Species | 0 | - | 4.99 | 89,759 |
| Countries 197 to 205 | 0 | - | 4.87 | 56,985 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,915 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,218 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,806 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,732 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,995 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,655 |
| Countries in the Alps | 0 | - | 4.84 | 103,483 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,095 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,706 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,061 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,128 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,632 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,093 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,254 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,577 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,581 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,178 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,933 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,885 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,912 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,306 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,451 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,026 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,760 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,760 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,838 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 200,361 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,524 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,663 |
| Largest Countries By Category | 0 | - | 4.97 | 145,984 |
| Countries by Countries | 0 | - | 4.96 | 55,302 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,157 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,555 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 360,213 |
| Island Countries Quiz | 0 | - | 4.99 | 666,044 |
| Biggest Countries by Area | 0 | - | 5.00 | 942,638 |
| Northernmost Countries | 0 | - | 4.99 | 329,946 |
| Countries of South America | 0 | - | 5.00 | 804,657 |
| Countries of Oceania | 0 | - | 5.00 | 906,904 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,598,622 |
| Countries that Start with A | 0 | - | 4.98 | 1,964,937 |
| Countries that Start with B | 0 | - | 4.95 | 2,103,894 |
| Countries that Start with C | 0 | - | 4.96 | 1,664,735 |
| Countries that Start with D | 0 | - | 4.96 | 604,747 |
| Countries that Start with E | 0 | - | 4.95 | 1,246,367 |
| Countries that Start with G | 0 | - | 4.97 | 1,366,323 |
| Countries that Start with H | 0 | - | 4.96 | 515,873 |
| Countries that Start with I | 0 | - | 4.92 | 1,175,067 |
| Countries that Start with J | 0 | - | 4.98 | 518,475 |
| Countries that Start with K | 0 | - | 4.96 | 723,875 |
| Countries that Start with L | 0 | - | 4.98 | 983,409 |
| Countries that Start with N | 0 | - | 4.93 | 1,009,855 |
| Countries that Start with P | 0 | - | 4.95 | 1,112,191 |
| Countries that Start with S | 0 | - | 4.98 | 1,619,725 |
| Countries that Start with T | 0 | - | 4.89 | 920,939 |
| Countries that Start with U | 0 | - | 4.96 | 830,162 |
| Countries that Start with V | 0 | - | 4.98 | 556,052 |
| Countries that Start with F | 0 | - | 4.84 | 545,496 |
| Countries that Start with M | 0 | - | 4.97 | 1,266,503 |
| Catholic Countries Quiz | 0 | - | 4.81 | 198,618 |
| Countries with the Most Catholics | 0 | - | 4.91 | 94,916 |
| Orthodox Countries | 0 | - | 4.91 | 118,914 |
| Richest Island Countries | 0 | - | 4.87 | 88,868 |
| Monarchies of Europe | 0 | - | 4.88 | 87,787 |
| Monarchies of Asia | 0 | - | 4.95 | 54,544 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.96 | 107,434 |
| Countries with the Most Billionaires | 0 | - | 4.93 | 283,889 |
| Countries with the Most Muslims | 0 | - | 4.93 | 133,031 |
| Countries with the Most Exports | 0 | - | 4.96 | 139,393 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 164,115 |
| Countries by Oil Consumption | 0 | - | 4.96 | 112,246 |
| Largest Economies in 2050 | 0 | - | 4.89 | 100,941 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 241,281 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 90,667 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.86 | 67,503 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 99,709 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 178,580 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 77,424 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,051 |
| Countries with Megacities | 0 | - | 4.99 | 200,433 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,921 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,253 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 97,399 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,250 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 251,332 |
| Countries by Official Language | 0 | - | 4.96 | 174,493 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,813 |
| Countries in their Native Language | 0 | - | 4.98 | 179,647 |
| Independence from Whom | 0 | - | 4.99 | 188,025 |
| Subdivisions by Country | 0 | - | 4.82 | 46,756 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,919 |
| Megadiverse Countries | 0 | - | 4.96 | 126,282 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,799 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,274 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,683 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,572 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,620 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,077 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,796 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,481 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,727 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,660 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,037 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,694 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,208 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 82,453 |
| Richest Countries A-Z | 0 | - | 4.92 | 89,515 |
| Large Countries with Small Economies | 0 | - | 4.94 | 73,757 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,332 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,922 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,137 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,387 |
| Countries With the Most Languages | 0 | - | 4.91 | 176,317 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,366 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,650 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,729 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,743 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,224 |
| Widest Countries East to West | 0 | - | 4.93 | 120,178 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,034 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,035 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,517 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,086 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,296 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,224 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,889 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,686 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,296 |
| Countries with Double Letters | 0 | - | 4.96 | 70,914 |
| Countries that End in N | 0 | - | 4.93 | 135,150 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 232,496 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 189,649 |
| Countries with W | 0 | - | 4.96 | 124,965 |
| Countries with Z | 0 | - | 4.98 | 262,261 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,921 |
| Countries That End in U | 0 | - | 4.95 | 108,931 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 91,630 |
| Countries that End in O | 0 | - | 4.92 | 148,281 |
| Countries that End in R | 0 | - | 4.85 | 97,104 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,837 |
| Countries Ending in "IA" | 0 | - | 4.99 | 173,214 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,197 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,314 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,263 |
| Countries That End in Y | 0 | - | 4.90 | 162,160 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,352 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 121,958 |
| Countries that End in I | 0 | - | 4.92 | 115,005 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,997 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,108 |
| Countries That End in NIA | 0 | - | 4.93 | 101,514 |
| Countries That End in BIA | 0 | - | 4.91 | 126,940 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,610 |
| Countries Whose Names Start with Saint | 0 | - | 4.89 | 110,578 |
| Countries That End in RIA | 0 | - | 4.90 | 101,612 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,293 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 203,453 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,026 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,094 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,678 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,405 |
