| Countries of the World Quiz | 0 | - | 5.00 | 47,772,619 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,950 |
| NATO Countries | 0 | - | 4.98 | 282,776 |
| EU Countries Quiz | 0 | - | 4.99 | 277,058 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,630 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 276,055 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,970 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,487 |
| Countries with NO Military | 0 | - | 4.97 | 63,072 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,989 |
| Landlocked Countries | 0 | - | 4.99 | 424,368 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,385 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,060 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,972 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,071 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,128 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,901 |
| Buddhist Countries | 0 | - | 4.96 | 144,918 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,603 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,459 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,795,502 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,574 |
| Himalayan Countries | 0 | - | 4.94 | 139,729 |
| Andean Countries | 0 | - | 4.94 | 85,162 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,339 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,592 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,911 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,196 |
| Danube Countries | 0 | - | 4.97 | 72,258 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,396 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,689 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,831 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,326 |
| European Landlocked Countries | 0 | - | 4.99 | 147,443 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,062 |
| Countries with the Most Species | 0 | - | 4.99 | 103,468 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,197 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,707 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,818 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,736 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,465 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,892 |
| Countries in the Alps | 0 | - | 4.87 | 118,566 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,262 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,578 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,850 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,866 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,791 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,126 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,075 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,728 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,332 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,054 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,785 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,655 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,437 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,671 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,761 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,484 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,512 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,499 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,475 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,153 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,809 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,419 |
| Largest Countries By Category | 0 | - | 4.97 | 158,622 |
| Countries by Countries | 0 | - | 4.96 | 63,495 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,967 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,059 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,273 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,873 |
| Island Countries | 0 | - | 4.99 | 712,006 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,135 |
| Northernmost Countries | 0 | - | 4.99 | 363,354 |
| Countries of South America | 0 | - | 5.00 | 930,748 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,137 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,885,087 |
| "Land" Countries | 0 | - | 4.98 | 338,029 |
| Countries that Start with A | 0 | - | 4.98 | 2,172,586 |
| Countries that Start with B | 0 | - | 4.95 | 2,303,567 |
| Countries that Start with C | 0 | - | 4.96 | 1,829,202 |
| Countries that Start with D | 0 | - | 4.96 | 714,807 |
| Countries that Start with E | 0 | - | 4.95 | 1,383,201 |
| Countries that Start with G | 0 | - | 4.97 | 1,509,535 |
| Countries that Start with H | 0 | - | 4.96 | 608,429 |
| Countries that Start with I | 0 | - | 4.92 | 1,293,102 |
| Countries that Start with J | 0 | - | 4.98 | 605,884 |
| Countries that Start with K | 0 | - | 4.97 | 819,591 |
| Countries that Start with L | 0 | - | 4.98 | 1,095,354 |
| Countries that Start with N | 0 | - | 4.93 | 1,122,378 |
| Countries that Start with P | 0 | - | 4.94 | 1,220,650 |
| Countries that Start with S | 0 | - | 4.98 | 1,761,180 |
| Countries that Start with T | 0 | - | 4.90 | 1,013,765 |
| Countries that Start with U | 0 | - | 4.97 | 907,612 |
| Countries that Start with V | 0 | - | 4.98 | 611,368 |
| Countries that Start with F | 0 | - | 4.83 | 620,412 |
| Countries that Start with M | 0 | - | 4.97 | 1,386,720 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,177 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,199 |
| Orthodox Countries | 0 | - | 4.92 | 132,624 |
| Richest Island Countries | 0 | - | 4.85 | 101,070 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,438 |
| Battle to Country | 0 | - | 4.91 | 53,806 |
| Monarchies of Europe | 0 | - | 4.90 | 98,692 |
| Monarchies of Asia | 0 | - | 4.97 | 71,415 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,715 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 226,662 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,749 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,209 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,006 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,970 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,302 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,688 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,815 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,124 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,824 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,945 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,341 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,899 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,908 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,760 |
| Countries with Megacities | 0 | - | 4.99 | 266,318 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,480 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,889 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,773 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,999 |
| Countries by Official Language | 0 | - | 4.95 | 195,759 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,279 |
| Countries in their Native Language | 0 | - | 4.99 | 199,538 |
| Independence from Whom | 0 | - | 4.99 | 212,727 |
| Subdivisions by Country | 0 | - | 4.87 | 50,561 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,199 |
| Megadiverse Countries | 0 | - | 4.96 | 135,190 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,750 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,480 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,379 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,179 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,432 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,749 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,888 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,501 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,770 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,221 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,176 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,303 |
| Countries with the Top Chess Players | 0 | - | 4.53 | 76,088 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,369 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,090 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,512 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,624 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,670 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,819 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,986 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,212 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,568 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,972 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,933 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,425 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,203 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,278 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,400 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,590 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,616 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,033 |
| Widest Countries East to West | 0 | - | 4.92 | 130,299 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,558 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,095 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,463 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,977 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,851 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,354 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,465 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,862 |
| Countries with Double Letters | 0 | - | 4.96 | 96,788 |
| Countries that End in N | 0 | - | 4.95 | 171,677 |
| Countries with Five Letters | 0 | - | 4.96 | 283,377 |
| Countries with Six Letters | 0 | - | 4.94 | 214,141 |
| Countries with W | 0 | - | 4.96 | 160,734 |
| Countries with Z | 0 | - | 4.98 | 292,108 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,086 |
| Countries That End in U | 0 | - | 4.95 | 121,070 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,889 |
| Countries that End in O | 0 | - | 4.92 | 159,717 |
| Countries that End in R | 0 | - | 4.87 | 119,108 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,854 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,565 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,995 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,705 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,635 |
| Countries That End in Y | 0 | - | 4.91 | 186,021 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,275 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,126 |
| Countries that End in I | 0 | - | 4.94 | 135,248 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,449 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,972 |
| Countries That End in NIA | 0 | - | 4.92 | 109,956 |
| Countries That End in BIA | 0 | - | 4.93 | 149,451 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,384 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,659 |
| Countries That End in RIA | 0 | - | 4.93 | 126,975 |
