| Countries of the World Quiz | 0 | - | 5.00 | 47,235,289 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,457 |
| NATO Countries | 0 | - | 4.98 | 278,653 |
| EU Countries Quiz | 0 | - | 4.99 | 272,220 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,874 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,062 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,364 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,694 |
| Countries with NO Military | 0 | - | 4.97 | 61,773 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,292 |
| Landlocked Countries | 0 | - | 4.99 | 417,519 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,512 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,941 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,220 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,536 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,182 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,684 |
| Buddhist Countries | 0 | - | 4.96 | 143,542 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,254 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,934 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,747,643 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,333 |
| Himalayan Countries | 0 | - | 4.95 | 136,852 |
| Andean Countries | 0 | - | 4.95 | 83,651 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,911 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,231 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,577 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,166 |
| Danube Countries | 0 | - | 4.97 | 71,511 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,346 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,927 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,369 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,412 |
| European Landlocked Countries | 0 | - | 4.99 | 146,230 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,928 |
| Countries with the Most Species | 0 | - | 4.99 | 102,561 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,052 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,369 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,545 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,217 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,877 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,262 |
| Countries in the Alps | 0 | - | 4.86 | 117,475 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,995 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,097 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,328 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,834 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,932 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,350 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,109 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,069 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,880 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,421 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,413 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,260 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,821 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,081 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,093 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,915 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,962 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,491 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,348 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,571 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,858 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,894 |
| Largest Countries By Category | 0 | - | 4.97 | 157,411 |
| Countries by Countries | 0 | - | 4.96 | 62,705 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,184 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,818 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,217 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,379 |
| Island Countries | 0 | - | 4.99 | 709,212 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,536 |
| Northernmost Countries | 0 | - | 4.99 | 359,864 |
| Countries of South America | 0 | - | 5.00 | 921,044 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,769 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,861,997 |
| "Land" Countries | 0 | - | 4.98 | 335,374 |
| Countries that Start with A | 0 | - | 4.98 | 2,156,133 |
| Countries that Start with B | 0 | - | 4.95 | 2,288,230 |
| Countries that Start with C | 0 | - | 4.96 | 1,817,045 |
| Countries that Start with D | 0 | - | 4.96 | 706,144 |
| Countries that Start with E | 0 | - | 4.95 | 1,373,071 |
| Countries that Start with G | 0 | - | 4.97 | 1,498,633 |
| Countries that Start with H | 0 | - | 4.96 | 601,787 |
| Countries that Start with I | 0 | - | 4.92 | 1,284,759 |
| Countries that Start with J | 0 | - | 4.98 | 599,752 |
| Countries that Start with K | 0 | - | 4.97 | 812,893 |
| Countries that Start with L | 0 | - | 4.98 | 1,087,491 |
| Countries that Start with N | 0 | - | 4.93 | 1,114,193 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,961 |
| Countries that Start with S | 0 | - | 4.98 | 1,750,486 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,458 |
| Countries that Start with U | 0 | - | 4.97 | 902,554 |
| Countries that Start with V | 0 | - | 4.98 | 607,680 |
| Countries that Start with F | 0 | - | 4.83 | 615,335 |
| Countries that Start with M | 0 | - | 4.97 | 1,378,098 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,841 |
| Orthodox Countries | 0 | - | 4.92 | 131,087 |
| Richest Island Countries | 0 | - | 4.84 | 100,109 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,703 |
| Monarchies of Europe | 0 | - | 4.90 | 97,799 |
| Monarchies of Asia | 0 | - | 4.97 | 70,895 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,308 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,711 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,949 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,888 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,192 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,893 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,089 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 269,381 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 103,831 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,209 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,273 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,640 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,024 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,578 |
| Countries with Megacities | 0 | - | 4.99 | 249,585 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,430 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,726 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,769 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,693 |
| Countries by Official Language | 0 | - | 4.95 | 194,370 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,184 |
| Countries in their Native Language | 0 | - | 4.99 | 197,940 |
| Independence from Whom | 0 | - | 4.99 | 211,041 |
| Subdivisions by Country | 0 | - | 4.86 | 50,239 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,496 |
| Megadiverse Countries | 0 | - | 4.96 | 134,663 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,081 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,125 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,682 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,973 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,550 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,288 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,758 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,681 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,431 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,825 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,558 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,633 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,734 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,701 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,573 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,548 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,658 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,857 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,241 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,783 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,506 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,980 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,383 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,561 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,717 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,193 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,184 |
| Widest Countries East to West | 0 | - | 4.92 | 129,249 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,348 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,780 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,961 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,373 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,073 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,438 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,174 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,702 |
| Countries with Double Letters | 0 | - | 4.97 | 94,746 |
| Countries that End in N | 0 | - | 4.95 | 169,112 |
| Countries with Five Letters | 0 | - | 4.96 | 276,116 |
| Countries with Six Letters | 0 | - | 4.94 | 212,051 |
| Countries with W | 0 | - | 4.97 | 159,260 |
| Countries with Z | 0 | - | 4.98 | 289,417 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,466 |
| Countries That End in U | 0 | - | 4.95 | 120,265 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,492 |
| Countries that End in O | 0 | - | 4.92 | 159,079 |
| Countries that End in R | 0 | - | 4.87 | 118,640 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,419 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,054 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,930 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,953 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,535 |
| Countries That End in Y | 0 | - | 4.90 | 185,555 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,029 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,250 |
| Countries that End in I | 0 | - | 4.94 | 134,763 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,859 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,484 |
| Countries That End in NIA | 0 | - | 4.92 | 109,409 |
| Countries That End in BIA | 0 | - | 4.93 | 148,701 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,560 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,913 |
| Countries That End in RIA | 0 | - | 4.93 | 126,429 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,499 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,344 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,021 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,360 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,967 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,236 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,566 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,097 |
