| Countries of the World Quiz | 0 | - | 5.00 | 46,981,361 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,915 |
| NATO Countries | 0 | - | 4.98 | 276,341 |
| EU Countries Quiz | 0 | - | 4.99 | 270,363 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,295 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,821 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,239 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,929 |
| Countries with NO Military | 0 | - | 4.97 | 61,256 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,972 |
| Landlocked Countries | 0 | - | 4.99 | 414,376 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,619 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,394 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,811 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,220 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,376 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,031 |
| Buddhist Countries | 0 | - | 4.96 | 143,061 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,128 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,248 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,722,961 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,899 |
| Himalayan Countries | 0 | - | 4.95 | 135,622 |
| Andean Countries | 0 | - | 4.94 | 82,971 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,331 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,380 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,034 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,715 |
| Danube Countries | 0 | - | 4.97 | 71,153 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,858 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,612 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,642 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,552 |
| European Landlocked Countries | 0 | - | 4.99 | 145,855 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,317 |
| Countries with the Most Species | 0 | - | 4.99 | 95,287 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,471 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,225 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,396 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,001 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,640 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,008 |
| Countries in the Alps | 0 | - | 4.86 | 116,948 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,655 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,399 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,078 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,485 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,266 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,069 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,668 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,822 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,549 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,128 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,223 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,087 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,511 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,807 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,804 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,226 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,720 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,299 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,873 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,688 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,921 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,663 |
| Largest Countries By Category | 0 | - | 4.97 | 156,882 |
| Countries by Countries | 0 | - | 4.96 | 62,336 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,840 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,891 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,398 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,213 |
| Island Countries | 0 | - | 4.99 | 707,908 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,487 |
| Northernmost Countries | 0 | - | 4.99 | 358,127 |
| Countries of South America | 0 | - | 5.00 | 916,067 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,170 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,938 |
| "Land" Countries | 0 | - | 4.98 | 333,851 |
| Countries that Start with A | 0 | - | 4.97 | 2,148,630 |
| Countries that Start with B | 0 | - | 4.95 | 2,281,387 |
| Countries that Start with C | 0 | - | 4.96 | 1,811,579 |
| Countries that Start with D | 0 | - | 4.96 | 702,411 |
| Countries that Start with E | 0 | - | 4.95 | 1,368,540 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,927 |
| Countries that Start with H | 0 | - | 4.96 | 598,666 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,128 |
| Countries that Start with J | 0 | - | 4.98 | 596,717 |
| Countries that Start with K | 0 | - | 4.97 | 810,051 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,697 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,588 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,335 |
| Countries that Start with S | 0 | - | 4.98 | 1,745,684 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,815 |
| Countries that Start with U | 0 | - | 4.97 | 900,422 |
| Countries that Start with V | 0 | - | 4.98 | 605,551 |
| Countries that Start with F | 0 | - | 4.83 | 612,784 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,259 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,163 |
| Orthodox Countries | 0 | - | 4.91 | 130,497 |
| Richest Island Countries | 0 | - | 4.84 | 99,623 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,455 |
| Monarchies of Europe | 0 | - | 4.90 | 97,415 |
| Monarchies of Asia | 0 | - | 4.97 | 70,656 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,602 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,474 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,391 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,297 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,604 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,598 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,734 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,452 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 103,056 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,796 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,715 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,064 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,574 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,628 |
| Countries with Megacities | 0 | - | 4.99 | 247,571 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,466 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,206 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,880 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,131 |
| Countries by Official Language | 0 | - | 4.95 | 192,934 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,355 |
| Countries in their Native Language | 0 | - | 4.99 | 196,786 |
| Independence from Whom | 0 | - | 4.99 | 209,889 |
| Subdivisions by Country | 0 | - | 4.86 | 50,103 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,892 |
| Megadiverse Countries | 0 | - | 4.97 | 133,963 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,950 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,952 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,465 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,877 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,758 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,054 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,181 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,218 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,249 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,761 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,736 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,455 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,548 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,536 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,160 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,996 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,397 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,411 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,539 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,321 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,060 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,997 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,977 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,165 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,375 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,000 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,413 |
| Widest Countries East to West | 0 | - | 4.92 | 128,864 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,244 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,327 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,603 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,750 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,700 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,123 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 72,306 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,612 |
| Countries with Double Letters | 0 | - | 4.96 | 93,535 |
| Countries that End in N | 0 | - | 4.94 | 157,021 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,843 |
| Countries with Six Letters | 0 | - | 4.93 | 210,516 |
| Countries with W | 0 | - | 4.97 | 158,324 |
| Countries with Z | 0 | - | 4.98 | 288,053 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,642 |
| Countries That End in U | 0 | - | 4.95 | 119,568 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,722 |
| Countries that End in O | 0 | - | 4.92 | 158,602 |
| Countries that End in R | 0 | - | 4.87 | 118,322 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,888 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,247 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,438 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,566 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,107 |
| Countries That End in Y | 0 | - | 4.90 | 185,245 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,490 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,792 |
| Countries that End in I | 0 | - | 4.94 | 134,482 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,320 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,243 |
| Countries That End in NIA | 0 | - | 4.92 | 109,061 |
| Countries That End in BIA | 0 | - | 4.92 | 147,776 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,158 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,563 |
| Countries That End in RIA | 0 | - | 4.93 | 126,136 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,093 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,443 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,588 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,958 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,449 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,966 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,194 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,718 |
