| Countries of the World Quiz | 0 | - | 5.00 | 47,171,189 |
| Majority Muslim Countries | 0 | - | 4.98 | 371,922 |
| NATO Countries | 0 | - | 4.98 | 278,149 |
| EU Countries Quiz | 0 | - | 4.99 | 271,683 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,425 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,454 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,054 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,459 |
| Countries with NO Military | 0 | - | 4.97 | 61,622 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,188 |
| Landlocked Countries | 0 | - | 4.99 | 416,758 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,309 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,782 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,115 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,452 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 318,711 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,531 |
| Buddhist Countries | 0 | - | 4.96 | 143,412 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,984 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,773 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,207 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,982 |
| Himalayan Countries | 0 | - | 4.95 | 136,539 |
| Andean Countries | 0 | - | 4.95 | 83,509 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,773 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,032 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,441 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,039 |
| Danube Countries | 0 | - | 4.97 | 71,440 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,230 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,855 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,173 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,157 |
| European Landlocked Countries | 0 | - | 4.99 | 146,138 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,785 |
| Countries with the Most Species | 0 | - | 4.99 | 101,809 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,910 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,336 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,516 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,165 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,813 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,196 |
| Countries in the Alps | 0 | - | 4.86 | 117,342 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,914 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,926 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,260 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,751 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,834 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,262 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,997 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,999 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,814 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,335 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,371 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,206 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,735 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,008 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,018 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,736 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,904 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,434 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,260 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,059 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,596 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,838 |
| Largest Countries By Category | 0 | - | 4.97 | 157,279 |
| Countries by Countries | 0 | - | 4.96 | 62,597 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,092 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,945 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,862 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,856 |
| Island Countries | 0 | - | 4.99 | 708,856 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,457 |
| Northernmost Countries | 0 | - | 4.99 | 359,420 |
| Countries of South America | 0 | - | 5.00 | 919,807 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,942 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,044 |
| "Land" Countries | 0 | - | 4.98 | 334,642 |
| Countries that Start with A | 0 | - | 4.98 | 2,154,149 |
| Countries that Start with B | 0 | - | 4.95 | 2,286,377 |
| Countries that Start with C | 0 | - | 4.96 | 1,815,562 |
| Countries that Start with D | 0 | - | 4.96 | 705,133 |
| Countries that Start with E | 0 | - | 4.95 | 1,371,834 |
| Countries that Start with G | 0 | - | 4.97 | 1,497,352 |
| Countries that Start with H | 0 | - | 4.96 | 600,947 |
| Countries that Start with I | 0 | - | 4.92 | 1,283,774 |
| Countries that Start with J | 0 | - | 4.98 | 598,932 |
| Countries that Start with K | 0 | - | 4.97 | 812,119 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,248 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,230 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,070 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,155 |
| Countries that Start with T | 0 | - | 4.90 | 1,006,763 |
| Countries that Start with U | 0 | - | 4.97 | 901,979 |
| Countries that Start with V | 0 | - | 4.98 | 607,178 |
| Countries that Start with F | 0 | - | 4.83 | 614,661 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,067 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,660 |
| Orthodox Countries | 0 | - | 4.92 | 130,951 |
| Richest Island Countries | 0 | - | 4.84 | 99,987 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,673 |
| Monarchies of Europe | 0 | - | 4.90 | 97,709 |
| Monarchies of Asia | 0 | - | 4.97 | 70,842 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,102 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,640 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,824 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,741 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,059 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,834 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,996 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 268,601 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 103,710 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,093 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,112 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,500 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,900 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,316 |
| Countries with Megacities | 0 | - | 4.99 | 249,024 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,161 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,564 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,509 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,534 |
| Countries by Official Language | 0 | - | 4.95 | 194,031 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,643 |
| Countries in their Native Language | 0 | - | 4.99 | 197,652 |
| Independence from Whom | 0 | - | 4.99 | 210,829 |
| Subdivisions by Country | 0 | - | 4.86 | 50,204 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,353 |
| Megadiverse Countries | 0 | - | 4.96 | 134,547 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,849 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,079 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,633 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,949 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,454 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,228 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,612 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,554 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,376 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,808 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,217 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,582 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,690 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,648 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,473 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,406 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,577 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,708 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,071 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,676 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,404 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,729 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,276 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,473 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,638 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,151 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,645 |
| Widest Countries East to West | 0 | - | 4.92 | 129,144 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,332 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,665 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,925 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,960 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,986 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,369 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,106 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,679 |
| Countries with Double Letters | 0 | - | 4.96 | 94,160 |
| Countries that End in N | 0 | - | 4.95 | 166,236 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,606 |
| Countries with Six Letters | 0 | - | 4.93 | 211,156 |
| Countries with W | 0 | - | 4.97 | 158,830 |
| Countries with Z | 0 | - | 4.98 | 288,799 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,049 |
| Countries That End in U | 0 | - | 4.95 | 119,929 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,175 |
| Countries that End in O | 0 | - | 4.92 | 158,876 |
| Countries that End in R | 0 | - | 4.87 | 118,513 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,295 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,785 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,754 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,815 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,388 |
| Countries That End in Y | 0 | - | 4.90 | 185,434 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,847 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,098 |
| Countries that End in I | 0 | - | 4.94 | 134,678 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,702 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,415 |
| Countries That End in NIA | 0 | - | 4.92 | 109,298 |
| Countries That End in BIA | 0 | - | 4.93 | 148,573 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,432 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,774 |
| Countries That End in RIA | 0 | - | 4.93 | 126,350 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,339 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,099 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,874 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,211 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,792 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,146 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,441 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,948 |
