| Countries of the World Quiz | 0 | - | 5.00 | 47,773,990 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,963 |
| NATO Countries | 0 | - | 4.98 | 282,788 |
| EU Countries Quiz | 0 | - | 4.99 | 277,065 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,653 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 276,076 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,978 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,492 |
| Countries with NO Military | 0 | - | 4.97 | 63,082 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,990 |
| Landlocked Countries | 0 | - | 4.99 | 424,402 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,389 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,064 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,978 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,076 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,140 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,903 |
| Buddhist Countries | 0 | - | 4.96 | 144,921 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,611 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,465 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,795,657 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,587 |
| Himalayan Countries | 0 | - | 4.94 | 139,737 |
| Andean Countries | 0 | - | 4.94 | 85,166 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,343 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,598 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,914 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,204 |
| Danube Countries | 0 | - | 4.97 | 72,260 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,396 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,690 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,840 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,332 |
| European Landlocked Countries | 0 | - | 4.99 | 147,445 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,068 |
| Countries with the Most Species | 0 | - | 4.99 | 103,470 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,204 |
| 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 | 59,737 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,468 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,894 |
| Countries in the Alps | 0 | - | 4.87 | 118,567 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,276 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,580 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,852 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,873 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,797 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,127 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,096 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,731 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,332 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,056 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,786 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,656 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,441 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,673 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,763 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,489 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,513 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,503 |
| 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 | 245,162 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,818 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,421 |
| Largest Countries By Category | 0 | - | 4.97 | 158,630 |
| Countries by Countries | 0 | - | 4.96 | 63,497 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,970 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,132 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,280 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,892 |
| Island Countries | 0 | - | 4.99 | 712,022 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,159 |
| Northernmost Countries | 0 | - | 4.99 | 363,364 |
| Countries of South America | 0 | - | 5.00 | 930,777 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,151 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,885,131 |
| "Land" Countries | 0 | - | 4.98 | 338,037 |
| Countries that Start with A | 0 | - | 4.98 | 2,172,634 |
| Countries that Start with B | 0 | - | 4.95 | 2,303,620 |
| Countries that Start with C | 0 | - | 4.96 | 1,829,244 |
| Countries that Start with D | 0 | - | 4.96 | 714,837 |
| Countries that Start with E | 0 | - | 4.95 | 1,383,229 |
| Countries that Start with G | 0 | - | 4.97 | 1,509,566 |
| Countries that Start with H | 0 | - | 4.96 | 608,447 |
| Countries that Start with I | 0 | - | 4.92 | 1,293,124 |
| Countries that Start with J | 0 | - | 4.98 | 605,901 |
| Countries that Start with K | 0 | - | 4.97 | 819,609 |
| Countries that Start with L | 0 | - | 4.98 | 1,095,375 |
| Countries that Start with N | 0 | - | 4.93 | 1,122,399 |
| Countries that Start with P | 0 | - | 4.94 | 1,220,667 |
| Countries that Start with S | 0 | - | 4.98 | 1,761,214 |
| Countries that Start with T | 0 | - | 4.90 | 1,013,783 |
| Countries that Start with U | 0 | - | 4.97 | 907,623 |
| Countries that Start with V | 0 | - | 4.98 | 611,378 |
| Countries that Start with F | 0 | - | 4.83 | 620,429 |
| Countries that Start with M | 0 | - | 4.97 | 1,386,747 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,177 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,201 |
| Orthodox Countries | 0 | - | 4.92 | 132,628 |
| Richest Island Countries | 0 | - | 4.85 | 101,073 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,491 |
| Battle to Country | 0 | - | 4.91 | 53,812 |
| Monarchies of Europe | 0 | - | 4.90 | 98,696 |
| Monarchies of Asia | 0 | - | 4.97 | 71,418 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 237,719 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 226,675 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,755 |
| 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 | 155,974 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,307 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,691 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,818 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,134 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,827 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,950 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,343 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,904 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,914 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,770 |
| Countries with Megacities | 0 | - | 4.99 | 266,334 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,486 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,893 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,781 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,004 |
| Countries by Official Language | 0 | - | 4.95 | 195,761 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,284 |
| Countries in their Native Language | 0 | - | 4.99 | 199,542 |
| Independence from Whom | 0 | - | 4.99 | 212,737 |
| Subdivisions by Country | 0 | - | 4.87 | 50,562 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,204 |
| Megadiverse Countries | 0 | - | 4.96 | 135,190 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,752 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,480 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,380 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,179 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,433 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,751 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,892 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,503 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,772 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,222 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,187 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,305 |
| Countries with the Top Chess Players | 0 | - | 4.53 | 76,093 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,371 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,092 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,512 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,629 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,674 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,821 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,995 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,215 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,573 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,976 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,936 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,425 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,215 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,280 |
| 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 | 61,617 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,045 |
| Widest Countries East to West | 0 | - | 4.92 | 130,300 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,558 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,098 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,465 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,977 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,853 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,354 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,467 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,862 |
| Countries with Double Letters | 0 | - | 4.96 | 96,791 |
| Countries that End in N | 0 | - | 4.95 | 171,679 |
| Countries with Five Letters | 0 | - | 4.96 | 283,379 |
| Countries with Six Letters | 0 | - | 4.94 | 214,142 |
| Countries with W | 0 | - | 4.96 | 160,737 |
| Countries with Z | 0 | - | 4.98 | 292,115 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,089 |
| Countries That End in U | 0 | - | 4.95 | 121,072 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,893 |
| Countries that End in O | 0 | - | 4.92 | 159,720 |
| Countries that End in R | 0 | - | 4.87 | 119,111 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,856 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,574 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,997 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,710 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,640 |
| Countries That End in Y | 0 | - | 4.91 | 186,024 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,280 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,132 |
| Countries that End in I | 0 | - | 4.94 | 135,251 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,451 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,973 |
| Countries That End in NIA | 0 | - | 4.92 | 109,959 |
| Countries That End in BIA | 0 | - | 4.93 | 149,455 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,390 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,660 |
| Countries That End in RIA | 0 | - | 4.93 | 126,976 |
