| Countries of the World Quiz | 0 | - | 5.00 | 47,534,876 |
| Majority Muslim Countries | 0 | - | 4.98 | 375,100 |
| NATO Countries | 0 | - | 4.98 | 281,128 |
| EU Countries Quiz | 0 | - | 4.99 | 275,056 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,975 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,951 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,993 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,792 |
| Countries with NO Military | 0 | - | 4.97 | 62,519 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,728 |
| Landlocked Countries | 0 | - | 4.99 | 421,381 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,457 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,567 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,656 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,863 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,217 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,400 |
| Buddhist Countries | 0 | - | 4.96 | 144,501 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,747 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,763 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,774,335 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,160 |
| Himalayan Countries | 0 | - | 4.95 | 138,453 |
| Andean Countries | 0 | - | 4.93 | 84,454 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,652 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,621 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,287 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,690 |
| Danube Countries | 0 | - | 4.97 | 71,939 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,926 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,354 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,174 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,637 |
| European Landlocked Countries | 0 | - | 4.99 | 147,065 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,519 |
| Countries with the Most Species | 0 | - | 4.99 | 103,175 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,670 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,547 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,694 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,498 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,179 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,593 |
| Countries in the Alps | 0 | - | 4.87 | 118,107 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,677 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,923 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,603 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,537 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,423 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,895 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,590 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,442 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,139 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,791 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,615 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,480 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,162 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,417 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,453 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,743 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,246 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 62,177 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,968 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,633 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,925 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,171 |
| Largest Countries By Category | 0 | - | 4.97 | 158,096 |
| Countries by Countries | 0 | - | 4.96 | 63,128 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,611 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,082 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,337 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,849 |
| Island Countries | 0 | - | 4.99 | 710,821 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,071 |
| Northernmost Countries | 0 | - | 4.99 | 361,687 |
| Countries of South America | 0 | - | 5.00 | 926,440 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,765 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,875,296 |
| "Land" Countries | 0 | - | 4.98 | 337,146 |
| Countries that Start with A | 0 | - | 4.98 | 2,164,969 |
| Countries that Start with B | 0 | - | 4.95 | 2,296,542 |
| Countries that Start with C | 0 | - | 4.96 | 1,823,808 |
| Countries that Start with D | 0 | - | 4.96 | 710,884 |
| Countries that Start with E | 0 | - | 4.95 | 1,378,597 |
| Countries that Start with G | 0 | - | 4.97 | 1,504,857 |
| Countries that Start with H | 0 | - | 4.96 | 605,645 |
| Countries that Start with I | 0 | - | 4.92 | 1,289,419 |
| Countries that Start with J | 0 | - | 4.98 | 603,276 |
| Countries that Start with K | 0 | - | 4.97 | 816,751 |
| Countries that Start with L | 0 | - | 4.98 | 1,091,825 |
| Countries that Start with N | 0 | - | 4.93 | 1,118,847 |
| Countries that Start with P | 0 | - | 4.94 | 1,217,269 |
| Countries that Start with S | 0 | - | 4.98 | 1,756,457 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,735 |
| Countries that Start with U | 0 | - | 4.97 | 905,208 |
| Countries that Start with V | 0 | - | 4.98 | 609,831 |
| Countries that Start with F | 0 | - | 4.83 | 618,283 |
| Countries that Start with M | 0 | - | 4.97 | 1,382,912 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,654 |
| Orthodox Countries | 0 | - | 4.92 | 132,138 |
| Richest Island Countries | 0 | - | 4.85 | 100,688 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,163 |
| Monarchies of Europe | 0 | - | 4.90 | 98,255 |
| Monarchies of Asia | 0 | - | 4.97 | 71,156 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,012 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,964 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,565 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,560 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,872 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,487 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,548 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 272,151 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,440 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,651 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,911 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,386 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,496 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,739 |
| Countries with Megacities | 0 | - | 4.99 | 264,187 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,590 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,390 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,849 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,451 |
| Countries by Official Language | 0 | - | 4.95 | 195,128 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,204 |
| Countries in their Native Language | 0 | - | 4.99 | 198,923 |
| Independence from Whom | 0 | - | 4.99 | 211,947 |
| Subdivisions by Country | 0 | - | 4.86 | 50,400 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,628 |
| Megadiverse Countries | 0 | - | 4.96 | 134,960 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,972 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,316 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,976 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,088 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,036 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,559 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,374 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,996 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,611 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,077 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,555 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,843 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,162 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,930 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,290 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,320 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,002 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,291 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,975 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,209 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,932 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,048 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,822 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,957 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,251 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,408 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,524 |
| Widest Countries East to West | 0 | - | 4.92 | 129,589 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,436 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,317 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,098 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,725 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,522 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,799 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,350 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,789 |
| Countries with Double Letters | 0 | - | 4.96 | 96,079 |
| Countries that End in N | 0 | - | 4.95 | 170,964 |
| Countries with Five Letters | 0 | - | 4.96 | 282,150 |
| Countries with Six Letters | 0 | - | 4.94 | 213,385 |
| Countries with W | 0 | - | 4.97 | 160,208 |
| Countries with Z | 0 | - | 4.98 | 291,266 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,566 |
| Countries That End in U | 0 | - | 4.95 | 120,774 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,334 |
| Countries that End in O | 0 | - | 4.92 | 159,462 |
| Countries that End in R | 0 | - | 4.87 | 118,925 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,685 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,942 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,604 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,407 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,322 |
| Countries That End in Y | 0 | - | 4.91 | 185,835 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,806 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,769 |
| Countries that End in I | 0 | - | 4.94 | 135,047 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,983 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,769 |
| Countries That End in NIA | 0 | - | 4.92 | 109,722 |
| Countries That End in BIA | 0 | - | 4.93 | 149,129 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,026 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,359 |
| Countries That End in RIA | 0 | - | 4.93 | 126,766 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,948 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,416 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,602 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,994 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,567 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,539 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,956 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,427 |
