| NATO Countries | 0 | - | 4.98 | 283,368 |
| EU Countries Quiz | 0 | - | 4.99 | 277,835 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,318 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 276,902 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,337 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 149,728 |
| Countries with NO Military | 0 | - | 4.97 | 63,387 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,084 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,868,457 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,606 |
| Landlocked Countries | 0 | - | 4.99 | 425,663 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,564 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,173 |
| Himalayan Countries | 0 | - | 4.93 | 140,173 |
| Andean Countries | 0 | - | 4.94 | 85,394 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,545 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,936 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,124 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,400 |
| Danube Countries | 0 | - | 4.97 | 72,363 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,571 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,821 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,085 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,578 |
| European Landlocked Countries | 0 | - | 4.99 | 147,592 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,275 |
| Countries with the Most Species | 0 | - | 4.99 | 103,552 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,384 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,768 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,877 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,832 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,568 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,000 |
| Countries in the Alps | 0 | - | 4.87 | 118,749 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,582 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,832 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,950 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,011 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,934 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,238 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,380 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,846 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,410 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,651 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,159 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,858 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,735 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,546 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,772 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,872 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,798 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,597 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 66,980 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,644 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,628 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,108 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,493 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,263 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,136 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,144 |
| Largest Countries By Category | 0 | - | 4.97 | 158,840 |
| Countries by Countries | 0 | - | 4.96 | 63,627 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 323,752 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,089 |
| Buddhist Countries | 0 | - | 4.96 | 145,071 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,096 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 336,895 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,660 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,305 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,647 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,629 |
| Island Countries | 0 | - | 4.99 | 712,513 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,568 |
| Northernmost Countries | 0 | - | 4.99 | 363,924 |
| Countries of South America | 0 | - | 5.00 | 932,513 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,076 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,802 |
| "Land" Countries | 0 | - | 4.98 | 338,346 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,402 |
| Orthodox Countries | 0 | - | 4.92 | 132,782 |
| Richest Island Countries | 0 | - | 4.85 | 101,206 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,323 |
| Monarchies of Europe | 0 | - | 4.90 | 98,855 |
| Monarchies of Asia | 0 | - | 4.97 | 71,495 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,022 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,281 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,169 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,143 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,459 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,768 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,915 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,748 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,965 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,060 |
| Countries that Start with A | 0 | - | 4.98 | 2,175,403 |
| Countries that Start with B | 0 | - | 4.95 | 2,306,136 |
| Countries that Start with C | 0 | - | 4.96 | 1,831,192 |
| Countries that Start with D | 0 | - | 4.96 | 716,244 |
| Countries that Start with E | 0 | - | 4.95 | 1,384,862 |
| Countries that Start with G | 0 | - | 4.97 | 1,511,294 |
| Countries that Start with H | 0 | - | 4.96 | 609,460 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,404 |
| Countries that Start with J | 0 | - | 4.98 | 606,826 |
| Countries that Start with K | 0 | - | 4.97 | 820,634 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,646 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,690 |
| Countries that Start with P | 0 | - | 4.94 | 1,221,860 |
| Countries that Start with S | 0 | - | 4.98 | 1,762,935 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,797 |
| Countries that Start with U | 0 | - | 4.97 | 908,383 |
| Countries that Start with V | 0 | - | 4.98 | 611,932 |
| Countries that Start with F | 0 | - | 4.83 | 621,195 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,088 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,518 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,113 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,062 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,117 |
| Countries with Megacities | 0 | - | 4.99 | 267,040 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,816 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,117 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,133 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,225 |
| Countries by Official Language | 0 | - | 4.95 | 195,969 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,600 |
| Countries in their Native Language | 0 | - | 4.99 | 199,715 |
| Independence from Whom | 0 | - | 4.99 | 213,031 |
| Subdivisions by Country | 0 | - | 4.87 | 50,610 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,415 |
| Megadiverse Countries | 0 | - | 4.96 | 135,272 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,928 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,532 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,643 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,226 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,889 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,838 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,101 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,565 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,030 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,251 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,506 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,370 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,440 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,139 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,571 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,706 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,228 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,067 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,549 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,543 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,420 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,520 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,721 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,686 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,686 |
| Widest Countries East to West | 0 | - | 4.92 | 130,448 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,595 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,245 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,513 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,057 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,959 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,471 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,500 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,888 |
| Countries with Double Letters | 0 | - | 4.96 | 97,047 |
| Countries that End in N | 0 | - | 4.95 | 171,906 |
| Countries with Five Letters | 0 | - | 4.96 | 283,730 |
| Countries with Six Letters | 0 | - | 4.94 | 214,447 |
| Countries with W | 0 | - | 4.96 | 160,914 |
| Countries with Z | 0 | - | 4.98 | 292,417 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,275 |
| Countries That End in U | 0 | - | 4.95 | 121,178 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,084 |
| Countries that End in O | 0 | - | 4.92 | 160,205 |
| Countries that End in R | 0 | - | 4.87 | 119,177 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,928 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,818 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,137 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,819 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,744 |
| Countries That End in Y | 0 | - | 4.91 | 186,084 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,444 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,268 |
| Countries that End in I | 0 | - | 4.94 | 135,310 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,608 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,053 |
| Countries That End in NIA | 0 | - | 4.92 | 110,046 |
| Countries That End in BIA | 0 | - | 4.93 | 149,569 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,525 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,764 |
| Countries That End in RIA | 0 | - | 4.93 | 127,046 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,382 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,575 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,173 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,616 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,161 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,800 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,325 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,535 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,648 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,409 |
