| Countries of the World Quiz | 0 | - | 5.00 | 47,147,859 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,691 |
| NATO Countries | 0 | - | 4.98 | 277,952 |
| EU Countries Quiz | 0 | - | 4.99 | 271,497 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,267 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,255 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,941 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,377 |
| Countries with NO Military | 0 | - | 4.97 | 61,563 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,152 |
| Landlocked Countries | 0 | - | 4.99 | 416,466 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,239 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,726 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,075 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,418 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,538 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,464 |
| Buddhist Countries | 0 | - | 4.96 | 143,360 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,878 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,701 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,739,213 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,841 |
| Himalayan Countries | 0 | - | 4.95 | 136,424 |
| Andean Countries | 0 | - | 4.95 | 83,441 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,713 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,937 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,391 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,992 |
| Danube Countries | 0 | - | 4.97 | 71,377 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,184 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,837 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,118 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,074 |
| European Landlocked Countries | 0 | - | 4.99 | 146,112 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,727 |
| Countries with the Most Species | 0 | - | 4.99 | 101,103 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,866 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,317 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,500 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,137 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,795 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,168 |
| Countries in the Alps | 0 | - | 4.86 | 117,306 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,879 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,847 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,238 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,722 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,798 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,234 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,961 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,983 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,787 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,317 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,348 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,196 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,706 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,981 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,992 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,669 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,879 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,416 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,213 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,896 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,518 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,810 |
| Largest Countries By Category | 0 | - | 4.97 | 157,226 |
| Countries by Countries | 0 | - | 4.96 | 62,577 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,066 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,659 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,754 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,623 |
| Island Countries | 0 | - | 4.99 | 708,745 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,107 |
| Northernmost Countries | 0 | - | 4.99 | 359,265 |
| Countries of South America | 0 | - | 5.00 | 919,391 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,294 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,947 |
| "Land" Countries | 0 | - | 4.98 | 334,529 |
| Countries that Start with A | 0 | - | 4.98 | 2,153,446 |
| Countries that Start with B | 0 | - | 4.95 | 2,285,744 |
| Countries that Start with C | 0 | - | 4.96 | 1,815,028 |
| Countries that Start with D | 0 | - | 4.96 | 704,781 |
| Countries that Start with E | 0 | - | 4.95 | 1,371,393 |
| Countries that Start with G | 0 | - | 4.97 | 1,496,918 |
| Countries that Start with H | 0 | - | 4.96 | 600,654 |
| Countries that Start with I | 0 | - | 4.92 | 1,283,435 |
| Countries that Start with J | 0 | - | 4.98 | 598,673 |
| Countries that Start with K | 0 | - | 4.97 | 811,841 |
| Countries that Start with L | 0 | - | 4.98 | 1,085,927 |
| Countries that Start with N | 0 | - | 4.93 | 1,112,890 |
| Countries that Start with P | 0 | - | 4.94 | 1,211,746 |
| Countries that Start with S | 0 | - | 4.98 | 1,748,663 |
| Countries that Start with T | 0 | - | 4.90 | 1,006,497 |
| Countries that Start with U | 0 | - | 4.97 | 901,782 |
| Countries that Start with V | 0 | - | 4.98 | 607,011 |
| Countries that Start with F | 0 | - | 4.83 | 614,407 |
| Countries that Start with M | 0 | - | 4.97 | 1,376,717 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,607 |
| Orthodox Countries | 0 | - | 4.92 | 130,889 |
| Richest Island Countries | 0 | - | 4.84 | 99,946 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,944 |
| Monarchies of Europe | 0 | - | 4.90 | 97,677 |
| Monarchies of Asia | 0 | - | 4.97 | 70,817 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,032 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,611 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,766 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,692 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,989 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,806 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,951 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 268,256 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 103,661 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,063 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,062 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,453 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,861 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,223 |
| Countries with Megacities | 0 | - | 4.99 | 248,830 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,072 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,519 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,443 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,470 |
| Countries by Official Language | 0 | - | 4.95 | 193,960 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,464 |
| Countries in their Native Language | 0 | - | 4.99 | 197,587 |
| Independence from Whom | 0 | - | 4.99 | 210,749 |
| Subdivisions by Country | 0 | - | 4.86 | 50,188 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,288 |
| Megadiverse Countries | 0 | - | 4.96 | 134,522 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,788 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,072 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,619 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,943 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,421 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,204 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,543 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,532 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,360 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,803 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,132 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,574 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,678 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,633 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,437 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,347 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,548 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,670 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,021 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,645 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,375 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,651 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,239 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,438 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,606 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,136 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,624 |
| Widest Countries East to West | 0 | - | 4.92 | 129,124 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,322 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,622 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,904 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,939 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,959 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,337 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,068 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,666 |
| Countries with Double Letters | 0 | - | 4.96 | 94,040 |
| Countries that End in N | 0 | - | 4.95 | 164,305 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,468 |
| Countries with Six Letters | 0 | - | 4.93 | 211,040 |
| Countries with W | 0 | - | 4.97 | 158,739 |
| Countries with Z | 0 | - | 4.98 | 288,652 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,976 |
| Countries That End in U | 0 | - | 4.95 | 119,862 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,104 |
| Countries that End in O | 0 | - | 4.92 | 158,818 |
| Countries that End in R | 0 | - | 4.87 | 118,478 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,011 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,678 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,705 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,785 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,349 |
| Countries That End in Y | 0 | - | 4.90 | 185,389 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,793 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,053 |
| Countries that End in I | 0 | - | 4.94 | 134,643 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,659 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,388 |
| Countries That End in NIA | 0 | - | 4.92 | 109,275 |
| Countries That End in BIA | 0 | - | 4.93 | 148,526 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,402 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,745 |
| Countries That End in RIA | 0 | - | 4.93 | 126,315 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,301 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,031 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,828 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,169 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,742 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,127 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,415 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,922 |
