| Countries of the World Quiz | 0 | - | 5.00 | 47,497,696 |
| Majority Muslim Countries | 0 | - | 4.98 | 374,705 |
| NATO Countries | 0 | - | 4.98 | 280,738 |
| EU Countries Quiz | 0 | - | 4.99 | 274,611 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,667 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,580 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,752 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,656 |
| Countries with NO Military | 0 | - | 4.97 | 62,419 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,648 |
| Landlocked Countries | 0 | - | 4.99 | 420,968 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,348 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,487 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,611 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,821 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,914 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,309 |
| Buddhist Countries | 0 | - | 4.96 | 144,436 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,595 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,670 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,770,916 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,972 |
| Himalayan Countries | 0 | - | 4.95 | 138,281 |
| Andean Countries | 0 | - | 4.95 | 84,360 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,582 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,494 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,206 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,620 |
| Danube Countries | 0 | - | 4.97 | 71,891 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,861 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,283 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,081 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,548 |
| European Landlocked Countries | 0 | - | 4.99 | 147,020 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,453 |
| Countries with the Most Species | 0 | - | 4.99 | 103,140 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,597 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,533 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,673 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,467 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,149 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,552 |
| Countries in the Alps | 0 | - | 4.87 | 118,030 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,250 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,822 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,573 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,501 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,373 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,870 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,534 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,392 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,109 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,738 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,585 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,440 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,111 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,381 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,410 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,654 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,208 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,720 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,873 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,423 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,806 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,139 |
| Largest Countries By Category | 0 | - | 4.97 | 158,006 |
| Countries by Countries | 0 | - | 4.96 | 63,075 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,561 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,682 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,200 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,557 |
| Island Countries | 0 | - | 4.99 | 710,616 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,504 |
| Northernmost Countries | 0 | - | 4.99 | 361,475 |
| Countries of South America | 0 | - | 5.00 | 925,743 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,929 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,502 |
| "Land" Countries | 0 | - | 4.98 | 336,960 |
| Countries that Start with A | 0 | - | 4.98 | 2,163,862 |
| Countries that Start with B | 0 | - | 4.95 | 2,295,542 |
| Countries that Start with C | 0 | - | 4.96 | 1,823,009 |
| Countries that Start with D | 0 | - | 4.96 | 710,301 |
| Countries that Start with E | 0 | - | 4.95 | 1,377,944 |
| Countries that Start with G | 0 | - | 4.97 | 1,504,146 |
| Countries that Start with H | 0 | - | 4.96 | 605,260 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,915 |
| Countries that Start with J | 0 | - | 4.98 | 602,927 |
| Countries that Start with K | 0 | - | 4.97 | 816,312 |
| Countries that Start with L | 0 | - | 4.98 | 1,091,320 |
| Countries that Start with N | 0 | - | 4.93 | 1,118,333 |
| Countries that Start with P | 0 | - | 4.94 | 1,216,729 |
| Countries that Start with S | 0 | - | 4.98 | 1,755,658 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,321 |
| Countries that Start with U | 0 | - | 4.97 | 904,900 |
| Countries that Start with V | 0 | - | 4.98 | 609,617 |
| Countries that Start with F | 0 | - | 4.83 | 618,006 |
| Countries that Start with M | 0 | - | 4.97 | 1,382,342 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,542 |
| Orthodox Countries | 0 | - | 4.92 | 132,042 |
| Richest Island Countries | 0 | - | 4.85 | 100,612 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,967 |
| Monarchies of Europe | 0 | - | 4.90 | 98,200 |
| Monarchies of Asia | 0 | - | 4.97 | 71,126 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,922 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,919 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,486 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,483 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,801 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,458 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,502 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,867 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,370 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,601 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,832 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,291 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,447 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,614 |
| Countries with Megacities | 0 | - | 4.99 | 263,818 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,464 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,322 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,730 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,365 |
| Countries by Official Language | 0 | - | 4.95 | 195,034 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,091 |
| Countries in their Native Language | 0 | - | 4.99 | 198,538 |
| Independence from Whom | 0 | - | 4.99 | 211,839 |
| Subdivisions by Country | 0 | - | 4.86 | 50,384 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,458 |
| Megadiverse Countries | 0 | - | 4.96 | 134,922 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,896 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,285 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,868 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,073 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,977 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,519 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,314 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,967 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,591 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,048 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,451 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,815 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,127 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,904 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,250 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,223 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,952 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,239 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,877 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,151 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,875 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,910 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,787 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,916 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,211 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,386 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,490 |
| Widest Countries East to West | 0 | - | 4.92 | 129,557 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,425 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,244 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,083 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,678 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,463 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,750 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,331 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,777 |
| Countries with Double Letters | 0 | - | 4.97 | 95,901 |
| Countries that End in N | 0 | - | 4.95 | 170,815 |
| Countries with Five Letters | 0 | - | 4.96 | 281,920 |
| Countries with Six Letters | 0 | - | 4.94 | 213,235 |
| Countries with W | 0 | - | 4.97 | 160,095 |
| Countries with Z | 0 | - | 4.98 | 291,093 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,448 |
| Countries That End in U | 0 | - | 4.95 | 120,718 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,225 |
| Countries that End in O | 0 | - | 4.92 | 159,421 |
| Countries that End in R | 0 | - | 4.87 | 118,890 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,657 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,828 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,514 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,355 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,203 |
| Countries That End in Y | 0 | - | 4.91 | 185,800 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,710 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,712 |
| Countries that End in I | 0 | - | 4.94 | 135,022 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,881 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,744 |
| Countries That End in NIA | 0 | - | 4.92 | 109,691 |
| Countries That End in BIA | 0 | - | 4.93 | 149,080 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,967 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,298 |
| Countries That End in RIA | 0 | - | 4.93 | 126,728 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,885 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,278 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,521 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,924 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,493 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,497 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,906 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,407 |
