| Countries of the World Quiz | 0 | - | 5.00 | 47,825,029 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,289 |
| NATO Countries | 0 | - | 4.98 | 283,106 |
| EU Countries Quiz | 0 | - | 4.99 | 277,466 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,021 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 276,575 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,158 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,632 |
| Countries with NO Military | 0 | - | 4.97 | 63,289 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,049 |
| Landlocked Countries | 0 | - | 4.99 | 424,993 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,530 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,194 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,087 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,113 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,481 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,000 |
| Buddhist Countries | 0 | - | 4.96 | 144,996 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,770 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,573 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,799,668 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,872 |
| Himalayan Countries | 0 | - | 4.93 | 139,948 |
| Andean Countries | 0 | - | 4.94 | 85,280 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,436 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,784 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,013 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,305 |
| Danube Countries | 0 | - | 4.97 | 72,309 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,470 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,750 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,962 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,456 |
| European Landlocked Countries | 0 | - | 4.99 | 147,521 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,176 |
| Countries with the Most Species | 0 | - | 4.99 | 103,515 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,305 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,737 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,849 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,783 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,518 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,948 |
| Countries in the Alps | 0 | - | 4.87 | 118,670 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,461 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,714 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,913 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,951 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,870 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,181 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,309 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,805 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,365 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,107 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,813 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,689 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,488 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,727 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,823 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,645 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,550 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,672 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,562 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,404 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,968 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,466 |
| Largest Countries By Category | 0 | - | 4.97 | 158,743 |
| Countries by Countries | 0 | - | 4.96 | 63,566 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,032 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,860 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,468 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,291 |
| Island Countries | 0 | - | 4.99 | 712,279 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,920 |
| Northernmost Countries | 0 | - | 4.99 | 363,663 |
| Countries of South America | 0 | - | 5.00 | 931,642 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,055 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,886,940 |
| "Land" Countries | 0 | - | 4.98 | 338,224 |
| Countries that Start with A | 0 | - | 4.98 | 2,174,088 |
| Countries that Start with B | 0 | - | 4.95 | 2,305,025 |
| Countries that Start with C | 0 | - | 4.96 | 1,830,295 |
| Countries that Start with D | 0 | - | 4.96 | 715,616 |
| Countries that Start with E | 0 | - | 4.95 | 1,384,121 |
| Countries that Start with G | 0 | - | 4.97 | 1,510,518 |
| Countries that Start with H | 0 | - | 4.96 | 608,999 |
| Countries that Start with I | 0 | - | 4.92 | 1,293,838 |
| Countries that Start with J | 0 | - | 4.98 | 606,395 |
| Countries that Start with K | 0 | - | 4.97 | 820,182 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,056 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,116 |
| Countries that Start with P | 0 | - | 4.94 | 1,221,334 |
| Countries that Start with S | 0 | - | 4.98 | 1,762,140 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,341 |
| Countries that Start with U | 0 | - | 4.97 | 908,057 |
| Countries that Start with V | 0 | - | 4.98 | 611,686 |
| Countries that Start with F | 0 | - | 4.83 | 620,856 |
| Countries that Start with M | 0 | - | 4.97 | 1,387,459 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,313 |
| Orthodox Countries | 0 | - | 4.92 | 132,708 |
| Richest Island Countries | 0 | - | 4.85 | 101,154 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,392,015 |
| Monarchies of Europe | 0 | - | 4.90 | 98,774 |
| Monarchies of Asia | 0 | - | 4.97 | 71,460 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,903 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,242 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,089 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,069 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,394 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,734 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,876 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,470 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,918 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,009 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,444 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,012 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,994 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,966 |
| Countries with Megacities | 0 | - | 4.99 | 266,748 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,659 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,003 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,971 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,128 |
| Countries by Official Language | 0 | - | 4.95 | 195,868 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,462 |
| Countries in their Native Language | 0 | - | 4.99 | 199,637 |
| Independence from Whom | 0 | - | 4.99 | 212,902 |
| Subdivisions by Country | 0 | - | 4.87 | 50,588 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,327 |
| Megadiverse Countries | 0 | - | 4.96 | 135,226 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,844 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,502 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,412 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,203 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,506 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,803 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,021 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,536 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,792 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,238 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,368 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,338 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,405 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,121 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,778 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,954 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,265 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,641 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,110 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,993 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,482 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,379 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,349 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,462 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,663 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,650 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,481 |
| Widest Countries East to West | 0 | - | 4.92 | 130,388 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,578 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,174 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,489 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,014 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,922 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,408 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,476 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,880 |
| Countries with Double Letters | 0 | - | 4.96 | 96,936 |
| Countries that End in N | 0 | - | 4.94 | 171,807 |
| Countries with Five Letters | 0 | - | 4.96 | 283,572 |
| Countries with Six Letters | 0 | - | 4.94 | 214,302 |
| Countries with W | 0 | - | 4.96 | 160,844 |
| Countries with Z | 0 | - | 4.98 | 292,277 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,200 |
| Countries That End in U | 0 | - | 4.95 | 121,126 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,999 |
| Countries that End in O | 0 | - | 4.92 | 159,923 |
| Countries that End in R | 0 | - | 4.87 | 119,141 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,898 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,723 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,075 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,767 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,700 |
| Countries That End in Y | 0 | - | 4.91 | 186,058 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,375 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,202 |
| Countries that End in I | 0 | - | 4.94 | 135,277 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,535 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,017 |
| Countries That End in NIA | 0 | - | 4.92 | 110,006 |
| Countries That End in BIA | 0 | - | 4.93 | 149,529 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,457 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,717 |
| Countries That End in RIA | 0 | - | 4.93 | 127,021 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,325 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,430 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,090 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,533 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,104 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,771 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,280 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,524 |
