| Countries of the World Quiz | 0 | - | 5.00 | 47,330,176 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,226 |
| NATO Countries | 0 | - | 4.98 | 279,323 |
| EU Countries Quiz | 0 | - | 4.99 | 272,911 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,451 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,913 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,763 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,999 |
| Countries with NO Military | 0 | - | 4.97 | 61,964 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,408 |
| Landlocked Countries | 0 | - | 4.99 | 418,886 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,797 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,141 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,362 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,663 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,829 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,900 |
| Buddhist Countries | 0 | - | 4.96 | 143,859 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,740 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,190 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,756,509 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,975 |
| Himalayan Countries | 0 | - | 4.94 | 137,404 |
| Andean Countries | 0 | - | 4.95 | 83,923 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,221 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,637 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,824 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,343 |
| Danube Countries | 0 | - | 4.97 | 71,653 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,540 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,048 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,638 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,724 |
| European Landlocked Countries | 0 | - | 4.99 | 146,771 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,127 |
| Countries with the Most Species | 0 | - | 4.99 | 102,905 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,260 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,430 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,585 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,298 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,986 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,357 |
| Countries in the Alps | 0 | - | 4.87 | 117,683 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,126 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,356 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,411 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,979 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,087 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,508 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,278 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,181 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,963 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,548 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,474 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,335 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,917 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,183 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,204 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,170 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,058 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,568 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,511 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,341 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,214 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,993 |
| Largest Countries By Category | 0 | - | 4.97 | 157,626 |
| Countries by Countries | 0 | - | 4.96 | 62,832 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,319 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,939 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,590 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,071 |
| Island Countries | 0 | - | 4.99 | 709,730 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,988 |
| Northernmost Countries | 0 | - | 4.99 | 360,436 |
| Countries of South America | 0 | - | 5.00 | 922,845 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,912 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,174 |
| "Land" Countries | 0 | - | 4.98 | 335,784 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,922 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,921 |
| Countries that Start with C | 0 | - | 4.96 | 1,819,227 |
| Countries that Start with D | 0 | - | 4.96 | 707,638 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,862 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,521 |
| Countries that Start with H | 0 | - | 4.96 | 603,093 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,186 |
| Countries that Start with J | 0 | - | 4.98 | 600,947 |
| Countries that Start with K | 0 | - | 4.97 | 814,127 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,917 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,855 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,363 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,415 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,485 |
| Countries that Start with U | 0 | - | 4.97 | 903,376 |
| Countries that Start with V | 0 | - | 4.98 | 608,419 |
| Countries that Start with F | 0 | - | 4.83 | 616,310 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,651 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,629 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,097 |
| Orthodox Countries | 0 | - | 4.92 | 131,321 |
| Richest Island Countries | 0 | - | 4.84 | 100,308 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,577 |
| Battle to Country | 0 | - | 4.91 | 53,158 |
| Monarchies of Europe | 0 | - | 4.90 | 97,969 |
| Monarchies of Asia | 0 | - | 4.97 | 70,987 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,525 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,527 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,534 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,780 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,157 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,104 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,423 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,282 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,279 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,379 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,047 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,363 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,472 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,908 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,169 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,012 |
| Countries with Megacities | 0 | - | 4.99 | 259,524 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,871 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,984 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,156 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,987 |
| Countries by Official Language | 0 | - | 4.95 | 194,638 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,512 |
| Countries in their Native Language | 0 | - | 4.99 | 198,176 |
| Independence from Whom | 0 | - | 4.99 | 211,295 |
| Subdivisions by Country | 0 | - | 4.86 | 50,286 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,694 |
| Megadiverse Countries | 0 | - | 4.96 | 134,760 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,537 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,181 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,752 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,016 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,706 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,378 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,967 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,842 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,483 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,987 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,943 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,711 |
| Countries with the Top Chess Players | 0 | - | 4.53 | 75,612 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,990 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,770 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,149 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,324 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,941 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,766 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,177 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,773 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,027 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,486 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,923 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,632 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,312 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,516 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,667 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,822 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,258 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,279 |
| Widest Countries East to West | 0 | - | 4.92 | 129,367 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,381 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,954 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,990 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,507 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,214 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,541 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,230 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,725 |
| Countries with Double Letters | 0 | - | 4.97 | 95,080 |
| Countries that End in N | 0 | - | 4.95 | 169,978 |
| Countries with Five Letters | 0 | - | 4.96 | 280,147 |
| Countries with Six Letters | 0 | - | 4.94 | 212,464 |
| Countries with W | 0 | - | 4.97 | 159,517 |
| Countries with Z | 0 | - | 4.98 | 289,790 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,732 |
| Countries That End in U | 0 | - | 4.95 | 120,407 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,742 |
| Countries that End in O | 0 | - | 4.92 | 159,191 |
| Countries that End in R | 0 | - | 4.87 | 118,731 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,508 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,322 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,097 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,075 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,658 |
| Countries That End in Y | 0 | - | 4.90 | 185,647 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,220 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,415 |
| Countries that End in I | 0 | - | 4.94 | 134,864 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,071 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,573 |
| Countries That End in NIA | 0 | - | 4.92 | 109,513 |
| Countries That End in BIA | 0 | - | 4.93 | 148,839 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,706 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,055 |
| Countries That End in RIA | 0 | - | 4.93 | 126,532 |
