| Countries of the World Quiz | 0 | - | 5.00 | 47,532,575 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,082 |
| NATO Countries | 0 | - | 4.98 | 281,103 |
| EU Countries Quiz | 0 | - | 4.99 | 275,027 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,958 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,935 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,979 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,776 |
| Countries with NO Military | 0 | - | 4.97 | 62,514 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,723 |
| Landlocked Countries | 0 | - | 4.99 | 421,352 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,453 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,561 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,653 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,860 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,154 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,398 |
| Buddhist Countries | 0 | - | 4.96 | 144,499 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,736 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,752 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,774,073 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,139 |
| Himalayan Countries | 0 | - | 4.95 | 138,444 |
| Andean Countries | 0 | - | 4.93 | 84,445 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,650 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,612 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,281 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,683 |
| Danube Countries | 0 | - | 4.97 | 71,936 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,924 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,350 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,165 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,628 |
| European Landlocked Countries | 0 | - | 4.99 | 147,062 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,514 |
| Countries with the Most Species | 0 | - | 4.99 | 103,169 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,668 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,547 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,691 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,495 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,176 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,591 |
| Countries in the Alps | 0 | - | 4.87 | 118,098 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,650 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,918 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,602 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,534 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,420 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,894 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,584 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,440 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,139 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,784 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,613 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,473 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,157 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,415 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,450 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,739 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,244 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 61,971 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,960 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,613 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,918 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,168 |
| Largest Countries By Category | 0 | - | 4.97 | 158,092 |
| Countries by Countries | 0 | - | 4.96 | 63,122 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,606 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,063 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,328 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,827 |
| Island Countries | 0 | - | 4.99 | 710,809 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,033 |
| Northernmost Countries | 0 | - | 4.99 | 361,673 |
| Countries of South America | 0 | - | 5.00 | 926,380 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,691 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,875,189 |
| "Land" Countries | 0 | - | 4.98 | 337,136 |
| Countries that Start with A | 0 | - | 4.98 | 2,164,900 |
| Countries that Start with B | 0 | - | 4.95 | 2,296,474 |
| Countries that Start with C | 0 | - | 4.96 | 1,823,758 |
| Countries that Start with D | 0 | - | 4.96 | 710,845 |
| Countries that Start with E | 0 | - | 4.95 | 1,378,554 |
| Countries that Start with G | 0 | - | 4.97 | 1,504,800 |
| Countries that Start with H | 0 | - | 4.96 | 605,620 |
| Countries that Start with I | 0 | - | 4.92 | 1,289,387 |
| Countries that Start with J | 0 | - | 4.98 | 603,255 |
| Countries that Start with K | 0 | - | 4.97 | 816,730 |
| Countries that Start with L | 0 | - | 4.98 | 1,091,793 |
| Countries that Start with N | 0 | - | 4.93 | 1,118,812 |
| Countries that Start with P | 0 | - | 4.94 | 1,217,236 |
| Countries that Start with S | 0 | - | 4.98 | 1,756,413 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,703 |
| Countries that Start with U | 0 | - | 4.97 | 905,192 |
| Countries that Start with V | 0 | - | 4.98 | 609,818 |
| Countries that Start with F | 0 | - | 4.83 | 618,266 |
| Countries that Start with M | 0 | - | 4.97 | 1,382,882 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,649 |
| Orthodox Countries | 0 | - | 4.92 | 132,133 |
| Richest Island Countries | 0 | - | 4.85 | 100,682 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,075 |
| Monarchies of Europe | 0 | - | 4.90 | 98,249 |
| Monarchies of Asia | 0 | - | 4.97 | 71,155 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,008 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,960 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,558 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,555 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,868 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,482 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,543 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,132 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,436 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,649 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,909 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,382 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,493 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,728 |
| Countries with Megacities | 0 | - | 4.99 | 264,165 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,579 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,386 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,839 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,448 |
| Countries by Official Language | 0 | - | 4.95 | 195,122 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,195 |
| Countries in their Native Language | 0 | - | 4.99 | 198,910 |
| Independence from Whom | 0 | - | 4.99 | 211,939 |
| Subdivisions by Country | 0 | - | 4.86 | 50,399 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,623 |
| Megadiverse Countries | 0 | - | 4.96 | 134,958 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,964 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,313 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,952 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,087 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,030 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,558 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,373 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,993 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,609 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,069 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,550 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,840 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,161 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,926 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,286 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,311 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,000 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,288 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,966 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,204 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,925 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,037 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,820 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,951 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,249 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,406 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,522 |
| Widest Countries East to West | 0 | - | 4.92 | 129,586 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,436 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,315 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,097 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,722 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,519 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,795 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,348 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,786 |
| Countries with Double Letters | 0 | - | 4.96 | 96,069 |
| Countries that End in N | 0 | - | 4.95 | 170,955 |
| Countries with Five Letters | 0 | - | 4.96 | 282,140 |
| Countries with Six Letters | 0 | - | 4.94 | 213,378 |
| Countries with W | 0 | - | 4.97 | 160,201 |
| Countries with Z | 0 | - | 4.98 | 291,256 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,559 |
| Countries That End in U | 0 | - | 4.95 | 120,773 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,328 |
| Countries that End in O | 0 | - | 4.92 | 159,461 |
| Countries that End in R | 0 | - | 4.87 | 118,924 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,684 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,937 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,601 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,403 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,320 |
| Countries That End in Y | 0 | - | 4.91 | 185,833 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,802 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,767 |
| Countries that End in I | 0 | - | 4.94 | 135,046 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,978 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,768 |
| Countries That End in NIA | 0 | - | 4.92 | 109,721 |
| Countries That End in BIA | 0 | - | 4.93 | 149,127 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,024 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,355 |
| Countries That End in RIA | 0 | - | 4.93 | 126,764 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,943 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,409 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,596 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,990 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,561 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,533 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,950 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,427 |
