| Countries of the World Quiz | 0 | - | 5.00 | 47,867,537 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,601 |
| NATO Countries | 0 | - | 4.98 | 283,367 |
| EU Countries Quiz | 0 | - | 4.99 | 277,827 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,314 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 276,896 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,335 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,726 |
| Countries with NO Military | 0 | - | 4.97 | 63,384 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,084 |
| Landlocked Countries | 0 | - | 4.99 | 425,648 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,650 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,261 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,135 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,143 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,750 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,088 |
| Buddhist Countries | 0 | - | 4.96 | 145,069 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 336,891 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,659 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,489 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,164 |
| Himalayan Countries | 0 | - | 4.93 | 140,168 |
| Andean Countries | 0 | - | 4.94 | 85,391 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,543 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,933 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,120 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,397 |
| Danube Countries | 0 | - | 4.97 | 72,360 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,569 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,818 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,082 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,574 |
| European Landlocked Countries | 0 | - | 4.99 | 147,589 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,272 |
| Countries with the Most Species | 0 | - | 4.99 | 103,549 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,382 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,768 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,876 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,830 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,565 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,993 |
| Countries in the Alps | 0 | - | 4.87 | 118,746 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,580 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,830 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,948 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,010 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,934 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,238 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,376 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,845 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,409 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,159 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,855 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,733 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,544 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,770 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,872 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,794 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,597 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 66,513 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,643 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,621 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,105 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,492 |
| Largest Countries By Category | 0 | - | 4.97 | 158,839 |
| Countries by Countries | 0 | - | 4.96 | 63,627 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,094 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,300 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,642 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,624 |
| Island Countries | 0 | - | 4.99 | 712,508 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,545 |
| Northernmost Countries | 0 | - | 4.99 | 363,918 |
| Countries of South America | 0 | - | 5.00 | 932,492 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,069 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,774 |
| "Land" Countries | 0 | - | 4.98 | 338,344 |
| Countries that Start with A | 0 | - | 4.98 | 2,175,377 |
| Countries that Start with B | 0 | - | 4.95 | 2,306,116 |
| Countries that Start with C | 0 | - | 4.96 | 1,831,174 |
| Countries that Start with D | 0 | - | 4.96 | 716,233 |
| Countries that Start with E | 0 | - | 4.95 | 1,384,851 |
| Countries that Start with G | 0 | - | 4.97 | 1,511,283 |
| Countries that Start with H | 0 | - | 4.96 | 609,452 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,397 |
| Countries that Start with J | 0 | - | 4.98 | 606,820 |
| Countries that Start with K | 0 | - | 4.97 | 820,625 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,632 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,677 |
| Countries that Start with P | 0 | - | 4.94 | 1,221,854 |
| Countries that Start with S | 0 | - | 4.98 | 1,762,916 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,788 |
| Countries that Start with U | 0 | - | 4.97 | 908,374 |
| Countries that Start with V | 0 | - | 4.98 | 611,929 |
| Countries that Start with F | 0 | - | 4.83 | 621,191 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,076 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,402 |
| Orthodox Countries | 0 | - | 4.92 | 132,782 |
| Richest Island Countries | 0 | - | 4.85 | 101,205 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,300 |
| Monarchies of Europe | 0 | - | 4.90 | 98,854 |
| Monarchies of Asia | 0 | - | 4.97 | 71,495 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,015 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,281 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,164 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,139 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,459 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,767 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,914 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,740 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,961 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,060 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,516 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,112 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,061 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,111 |
| Countries with Megacities | 0 | - | 4.99 | 267,037 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,811 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,111 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,129 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,224 |
| Countries by Official Language | 0 | - | 4.95 | 195,966 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,598 |
| Countries in their Native Language | 0 | - | 4.99 | 199,714 |
| Independence from Whom | 0 | - | 4.99 | 213,030 |
| Subdivisions by Country | 0 | - | 4.87 | 50,609 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,415 |
| Megadiverse Countries | 0 | - | 4.96 | 135,271 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,927 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,532 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,640 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,225 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,874 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,837 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,101 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,565 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,028 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,251 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,504 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,369 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,440 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,139 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,825 |
| Richest Countries A-Z | 0 | - | 4.91 | 104,023 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,296 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,704 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,226 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,066 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,545 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,543 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,419 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,518 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,718 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,685 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,685 |
| Widest Countries East to West | 0 | - | 4.92 | 130,447 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,595 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,244 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,513 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,057 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,959 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,471 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,500 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,888 |
| Countries with Double Letters | 0 | - | 4.96 | 97,047 |
| Countries that End in N | 0 | - | 4.95 | 171,903 |
| Countries with Five Letters | 0 | - | 4.96 | 283,728 |
| Countries with Six Letters | 0 | - | 4.94 | 214,444 |
| Countries with W | 0 | - | 4.96 | 160,912 |
| Countries with Z | 0 | - | 4.98 | 292,416 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,270 |
| Countries That End in U | 0 | - | 4.95 | 121,177 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,081 |
| Countries that End in O | 0 | - | 4.92 | 160,204 |
| Countries that End in R | 0 | - | 4.87 | 119,177 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,928 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,813 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,136 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,815 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,743 |
| Countries That End in Y | 0 | - | 4.91 | 186,083 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,442 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,267 |
| Countries that End in I | 0 | - | 4.94 | 135,310 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,608 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,053 |
| Countries That End in NIA | 0 | - | 4.92 | 110,043 |
| Countries That End in BIA | 0 | - | 4.93 | 149,567 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,525 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,762 |
| Countries That End in RIA | 0 | - | 4.93 | 127,045 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,382 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,573 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,173 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,613 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,161 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,799 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,324 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,534 |
