| Countries of the World Quiz | 0 | - | 5.00 | 47,837,348 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,375 |
| NATO Countries | 0 | - | 4.98 | 283,173 |
| EU Countries Quiz | 0 | - | 4.99 | 277,567 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,099 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 276,658 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,195 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,656 |
| Countries with NO Military | 0 | - | 4.97 | 63,314 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,053 |
| Landlocked Countries | 0 | - | 4.99 | 425,115 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,564 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,211 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,103 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,123 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,025 |
| Buddhist Countries | 0 | - | 4.96 | 145,022 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,798 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,597 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,800,735 |
| World Currency Quiz | 0 | - | 4.92 | 306,437 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,941 |
| Himalayan Countries | 0 | - | 4.93 | 139,991 |
| Andean Countries | 0 | - | 4.94 | 85,300 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,462 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,813 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,032 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,323 |
| Danube Countries | 0 | - | 4.97 | 72,316 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,484 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,760 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,984 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,481 |
| European Landlocked Countries | 0 | - | 4.99 | 147,535 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,195 |
| Countries with the Most Species | 0 | - | 4.99 | 103,520 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,325 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,742 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,852 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,790 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,524 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,958 |
| Countries in the Alps | 0 | - | 4.87 | 118,687 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,488 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,744 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,920 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,965 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,883 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,191 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,322 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,811 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,375 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,124 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,821 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,696 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,503 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,735 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,832 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,691 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,563 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,695 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,597 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,467 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,001 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,475 |
| Largest Countries By Category | 0 | - | 4.97 | 158,771 |
| Countries by Countries | 0 | - | 4.96 | 63,581 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,042 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,965 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,501 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,382 |
| Island Countries | 0 | - | 4.99 | 712,332 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,111 |
| Northernmost Countries | 0 | - | 4.99 | 363,726 |
| Countries of South America | 0 | - | 5.00 | 931,839 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,355 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,887,412 |
| "Land" Countries | 0 | - | 4.98 | 338,266 |
| Countries that Start with A | 0 | - | 4.98 | 2,174,483 |
| Countries that Start with B | 0 | - | 4.95 | 2,305,352 |
| Countries that Start with C | 0 | - | 4.96 | 1,830,559 |
| Countries that Start with D | 0 | - | 4.96 | 715,813 |
| Countries that Start with E | 0 | - | 4.95 | 1,384,361 |
| Countries that Start with G | 0 | - | 4.97 | 1,510,764 |
| Countries that Start with H | 0 | - | 4.96 | 609,135 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,002 |
| Countries that Start with J | 0 | - | 4.98 | 606,525 |
| Countries that Start with K | 0 | - | 4.97 | 820,316 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,228 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,286 |
| Countries that Start with P | 0 | - | 4.94 | 1,221,488 |
| Countries that Start with S | 0 | - | 4.98 | 1,762,364 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,469 |
| Countries that Start with U | 0 | - | 4.97 | 908,156 |
| Countries that Start with V | 0 | - | 4.98 | 611,749 |
| Countries that Start with F | 0 | - | 4.83 | 620,970 |
| Countries that Start with M | 0 | - | 4.97 | 1,387,628 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,334 |
| Orthodox Countries | 0 | - | 4.92 | 132,730 |
| Richest Island Countries | 0 | - | 4.85 | 101,169 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,392,383 |
| Monarchies of Europe | 0 | - | 4.90 | 98,795 |
| Monarchies of Asia | 0 | - | 4.97 | 71,472 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,939 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,250 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,108 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,094 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,415 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,748 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,888 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,549 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,933 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,023 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,464 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,036 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,012 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,000 |
| Countries with Megacities | 0 | - | 4.99 | 266,817 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,709 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,028 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,022 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,151 |
| Countries by Official Language | 0 | - | 4.95 | 195,894 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,494 |
| Countries in their Native Language | 0 | - | 4.99 | 199,654 |
| Independence from Whom | 0 | - | 4.99 | 212,945 |
| Subdivisions by Country | 0 | - | 4.87 | 50,591 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,350 |
| Megadiverse Countries | 0 | - | 4.96 | 135,241 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,864 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,508 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,420 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,209 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,520 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,811 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,038 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,542 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,794 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,243 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,416 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,349 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,414 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,127 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,789 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,979 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,273 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,658 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,140 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,003 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,493 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,419 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,365 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,474 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,673 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,654 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,533 |
| Widest Countries East to West | 0 | - | 4.92 | 130,395 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,581 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,189 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,495 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,022 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,936 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,423 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,479 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,882 |
| Countries with Double Letters | 0 | - | 4.96 | 96,972 |
| Countries that End in N | 0 | - | 4.94 | 171,835 |
| Countries with Five Letters | 0 | - | 4.96 | 283,623 |
| Countries with Six Letters | 0 | - | 4.94 | 214,348 |
| Countries with W | 0 | - | 4.96 | 160,869 |
| Countries with Z | 0 | - | 4.98 | 292,323 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,223 |
| Countries That End in U | 0 | - | 4.95 | 121,147 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,027 |
| Countries that End in O | 0 | - | 4.92 | 160,117 |
| Countries that End in R | 0 | - | 4.87 | 119,152 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,904 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,748 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,095 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,774 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,711 |
| Countries That End in Y | 0 | - | 4.91 | 186,072 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,390 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,218 |
| Countries that End in I | 0 | - | 4.94 | 135,285 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,557 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,029 |
| Countries That End in NIA | 0 | - | 4.92 | 110,019 |
| Countries That End in BIA | 0 | - | 4.93 | 149,540 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,472 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,731 |
| Countries That End in RIA | 0 | - | 4.93 | 127,028 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,340 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,469 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,111 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,551 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,118 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,778 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,297 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,526 |
