| Countries of the World Quiz | 0 | - | 5.00 | 47,828,600 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,311 |
| NATO Countries | 0 | - | 4.98 | 283,126 |
| EU Countries Quiz | 0 | - | 4.99 | 277,497 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,045 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 276,603 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,162 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,638 |
| Countries with NO Military | 0 | - | 4.97 | 63,297 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,049 |
| Landlocked Countries | 0 | - | 4.99 | 425,024 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,544 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,198 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,090 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,115 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,510 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,007 |
| Buddhist Countries | 0 | - | 4.96 | 145,004 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,778 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,578 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,800,006 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,889 |
| Himalayan Countries | 0 | - | 4.93 | 139,963 |
| Andean Countries | 0 | - | 4.94 | 85,285 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,441 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,790 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,016 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,312 |
| Danube Countries | 0 | - | 4.97 | 72,311 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,472 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,752 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,970 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,460 |
| European Landlocked Countries | 0 | - | 4.99 | 147,525 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,177 |
| Countries with the Most Species | 0 | - | 4.99 | 103,517 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,309 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,738 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,849 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,785 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,519 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,950 |
| Countries in the Alps | 0 | - | 4.87 | 118,677 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,468 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,722 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,913 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,954 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,873 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,183 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,311 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,808 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,367 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,112 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,819 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,689 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,494 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,728 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,826 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,668 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,558 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,680 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,571 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,422 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,978 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,469 |
| Largest Countries By Category | 0 | - | 4.97 | 158,755 |
| Countries by Countries | 0 | - | 4.96 | 63,576 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,033 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,888 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,478 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,316 |
| Island Countries | 0 | - | 4.99 | 712,293 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,991 |
| Northernmost Countries | 0 | - | 4.99 | 363,684 |
| Countries of South America | 0 | - | 5.00 | 931,705 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,180 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,887,090 |
| "Land" Countries | 0 | - | 4.98 | 338,235 |
| Countries that Start with A | 0 | - | 4.98 | 2,174,184 |
| Countries that Start with B | 0 | - | 4.95 | 2,305,099 |
| Countries that Start with C | 0 | - | 4.96 | 1,830,384 |
| Countries that Start with D | 0 | - | 4.96 | 715,673 |
| Countries that Start with E | 0 | - | 4.95 | 1,384,180 |
| Countries that Start with G | 0 | - | 4.97 | 1,510,588 |
| Countries that Start with H | 0 | - | 4.96 | 609,031 |
| Countries that Start with I | 0 | - | 4.92 | 1,293,876 |
| Countries that Start with J | 0 | - | 4.98 | 606,433 |
| Countries that Start with K | 0 | - | 4.97 | 820,220 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,103 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,165 |
| Countries that Start with P | 0 | - | 4.94 | 1,221,378 |
| Countries that Start with S | 0 | - | 4.98 | 1,762,199 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,377 |
| Countries that Start with U | 0 | - | 4.97 | 908,083 |
| Countries that Start with V | 0 | - | 4.98 | 611,701 |
| Countries that Start with F | 0 | - | 4.83 | 620,886 |
| Countries that Start with M | 0 | - | 4.97 | 1,387,495 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,322 |
| Orthodox Countries | 0 | - | 4.92 | 132,714 |
| Richest Island Countries | 0 | - | 4.85 | 101,157 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,392,124 |
| Monarchies of Europe | 0 | - | 4.90 | 98,781 |
| Monarchies of Asia | 0 | - | 4.97 | 71,462 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,913 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,245 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,098 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,074 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,405 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,738 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,880 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,498 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,921 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,015 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,448 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,020 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,999 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,976 |
| Countries with Megacities | 0 | - | 4.99 | 266,765 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,665 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,016 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,979 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,136 |
| Countries by Official Language | 0 | - | 4.95 | 195,873 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,469 |
| Countries in their Native Language | 0 | - | 4.99 | 199,640 |
| Independence from Whom | 0 | - | 4.99 | 212,913 |
| Subdivisions by Country | 0 | - | 4.87 | 50,589 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,337 |
| Megadiverse Countries | 0 | - | 4.96 | 135,230 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,850 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,506 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,412 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,206 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,511 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,805 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,029 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,537 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,794 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,241 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,391 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,341 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,408 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,122 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,781 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,962 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,271 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,648 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,122 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,996 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,485 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,390 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,353 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,464 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,664 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,651 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,498 |
| Widest Countries East to West | 0 | - | 4.92 | 130,390 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,580 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,179 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,492 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,015 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,925 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,411 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,478 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,881 |
| Countries with Double Letters | 0 | - | 4.96 | 96,941 |
| Countries that End in N | 0 | - | 4.94 | 171,811 |
| Countries with Five Letters | 0 | - | 4.96 | 283,585 |
| Countries with Six Letters | 0 | - | 4.94 | 214,312 |
| Countries with W | 0 | - | 4.96 | 160,849 |
| Countries with Z | 0 | - | 4.98 | 292,293 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,203 |
| Countries That End in U | 0 | - | 4.95 | 121,131 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,006 |
| Countries that End in O | 0 | - | 4.92 | 159,983 |
| Countries that End in R | 0 | - | 4.87 | 119,144 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,899 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,727 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,082 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,769 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,704 |
| Countries That End in Y | 0 | - | 4.91 | 186,058 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,382 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,207 |
| Countries that End in I | 0 | - | 4.94 | 135,280 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,544 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,019 |
| Countries That End in NIA | 0 | - | 4.92 | 110,015 |
| Countries That End in BIA | 0 | - | 4.93 | 149,533 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,462 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,723 |
| Countries That End in RIA | 0 | - | 4.93 | 127,023 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,331 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,441 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,098 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,538 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,110 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,774 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,288 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,524 |
