| Countries of the World Quiz | 0 | - | 5.00 | 47,310,950 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,046 |
| NATO Countries | 0 | - | 4.98 | 279,155 |
| EU Countries Quiz | 0 | - | 4.99 | 272,765 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,346 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,753 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,662 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,918 |
| Countries with NO Military | 0 | - | 4.97 | 61,926 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,374 |
| Landlocked Countries | 0 | - | 4.99 | 418,543 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,741 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,085 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,327 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,630 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,630 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,829 |
| Buddhist Countries | 0 | - | 4.96 | 143,682 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,573 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,143 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,754,722 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,775 |
| Himalayan Countries | 0 | - | 4.94 | 137,240 |
| Andean Countries | 0 | - | 4.95 | 83,839 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,096 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,501 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,769 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,288 |
| Danube Countries | 0 | - | 4.97 | 71,612 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,490 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,011 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,574 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,638 |
| European Landlocked Countries | 0 | - | 4.99 | 146,727 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,071 |
| Countries with the Most Species | 0 | - | 4.99 | 102,865 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,206 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,418 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,573 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,275 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,951 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,328 |
| Countries in the Alps | 0 | - | 4.87 | 117,627 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,091 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,296 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,382 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,943 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,047 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,416 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,231 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,146 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,942 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,517 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,453 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,316 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,893 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,163 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,180 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,117 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,036 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,552 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,473 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,210 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,130 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,970 |
| Largest Countries By Category | 0 | - | 4.97 | 157,570 |
| Countries by Countries | 0 | - | 4.96 | 62,802 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,290 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,678 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,499 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,918 |
| Island Countries | 0 | - | 4.99 | 709,603 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,695 |
| Northernmost Countries | 0 | - | 4.99 | 360,325 |
| Countries of South America | 0 | - | 5.00 | 922,491 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,465 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,865,415 |
| "Land" Countries | 0 | - | 4.98 | 335,712 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,385 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,388 |
| Countries that Start with C | 0 | - | 4.96 | 1,818,773 |
| Countries that Start with D | 0 | - | 4.96 | 707,340 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,520 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,165 |
| Countries that Start with H | 0 | - | 4.96 | 602,834 |
| Countries that Start with I | 0 | - | 4.92 | 1,285,891 |
| Countries that Start with J | 0 | - | 4.98 | 600,694 |
| Countries that Start with K | 0 | - | 4.97 | 813,794 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,633 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,565 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,078 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,042 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,300 |
| Countries that Start with U | 0 | - | 4.97 | 903,213 |
| Countries that Start with V | 0 | - | 4.98 | 608,275 |
| Countries that Start with F | 0 | - | 4.83 | 616,121 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,330 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,605 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,038 |
| Orthodox Countries | 0 | - | 4.92 | 131,246 |
| Richest Island Countries | 0 | - | 4.84 | 100,275 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,961 |
| Battle to Country | 0 | - | 4.91 | 53,121 |
| Monarchies of Europe | 0 | - | 4.90 | 97,929 |
| Monarchies of Asia | 0 | - | 4.97 | 70,963 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,381 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,417 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,488 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,767 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,112 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,062 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,375 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,264 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,243 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,152 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,006 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,333 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,420 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,863 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,137 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,904 |
| Countries with Megacities | 0 | - | 4.99 | 257,123 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,768 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,922 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,064 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,928 |
| Countries by Official Language | 0 | - | 4.95 | 194,581 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,456 |
| Countries in their Native Language | 0 | - | 4.99 | 198,125 |
| Independence from Whom | 0 | - | 4.99 | 211,233 |
| Subdivisions by Country | 0 | - | 4.86 | 50,272 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,639 |
| Megadiverse Countries | 0 | - | 4.96 | 134,743 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,497 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,162 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,732 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,007 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,672 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,359 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,918 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,821 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,467 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,973 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,885 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,693 |
| Countries with the Top Chess Players | 0 | - | 4.53 | 75,589 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,969 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,755 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,120 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,307 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,885 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,708 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,101 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,751 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,001 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,436 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,893 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,601 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,256 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,485 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,647 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,797 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,246 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,255 |
| Widest Countries East to West | 0 | - | 4.92 | 129,337 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,376 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,921 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,983 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,487 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,177 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,512 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,222 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,723 |
| Countries with Double Letters | 0 | - | 4.97 | 95,032 |
| Countries that End in N | 0 | - | 4.95 | 169,876 |
| Countries with Five Letters | 0 | - | 4.96 | 279,781 |
| Countries with Six Letters | 0 | - | 4.94 | 212,411 |
| Countries with W | 0 | - | 4.97 | 159,489 |
| Countries with Z | 0 | - | 4.98 | 289,731 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,683 |
| Countries That End in U | 0 | - | 4.95 | 120,387 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,705 |
| Countries that End in O | 0 | - | 4.92 | 159,176 |
| Countries that End in R | 0 | - | 4.87 | 118,721 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,498 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,259 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,070 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,060 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,643 |
| Countries That End in Y | 0 | - | 4.90 | 185,633 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,183 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,384 |
| Countries that End in I | 0 | - | 4.94 | 134,846 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,035 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,557 |
| Countries That End in NIA | 0 | - | 4.92 | 109,497 |
| Countries That End in BIA | 0 | - | 4.93 | 148,813 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,675 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,023 |
| Countries That End in RIA | 0 | - | 4.93 | 126,510 |
