| Countries of the World Quiz | 0 | - | 5.00 | 47,868,774 |
| NATO Countries | 0 | - | 4.98 | 283,370 |
| EU Countries Quiz | 0 | - | 4.99 | 277,837 |
| Landlocked Countries | 0 | - | 4.99 | 425,666 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,060 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,652 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,090 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,676 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,451 |
| Every Country Shape | 0 | - | 5.00 | 470,972 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,582 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,174 |
| Himalayan Countries | 0 | - | 4.93 | 140,175 |
| Andean Countries | 0 | - | 4.94 | 85,395 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,548 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,936 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,125 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,400 |
| Danube Countries | 0 | - | 4.97 | 72,364 |
| 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 | 85,086 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,579 |
| 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 | 73,569 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,000 |
| Countries in the Alps | 0 | - | 4.87 | 118,750 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,587 |
| 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 | 116,935 |
| 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 Container Port Traffic | 0 | - | 4.92 | 63,160 |
| 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 | 77,874 |
| 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 | 67,115 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,645 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,631 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,108 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,493 |
| Largest Countries By Category | 0 | - | 4.97 | 158,840 |
| Countries by Countries | 0 | - | 4.96 | 63,627 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,096 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,306 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,649 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,629 |
| Island Countries | 0 | - | 4.99 | 712,514 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,570 |
| Northernmost Countries | 0 | - | 4.99 | 363,930 |
| Countries of South America | 0 | - | 5.00 | 932,514 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,081 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,814 |
| "Land" Countries | 0 | - | 4.98 | 338,349 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,971 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,640 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 139,401 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,402 |
| Orthodox Countries | 0 | - | 4.92 | 132,782 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,337 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,474 |
| Battle to Country | 0 | - | 4.91 | 53,942 |
| Monarchies of Europe | 0 | - | 4.90 | 98,856 |
| Monarchies of Asia | 0 | - | 4.97 | 71,496 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,281 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,385 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,775 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 165,197 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 39,902 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 34,149 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 105,136 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 112,111 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,965 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,914 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 81,129 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,633 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 86,374 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,520 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,118 |
| Countries with Megacities | 0 | - | 4.99 | 267,043 |
| 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 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,784 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,134 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,225 |
| Countries by Official Language | 0 | - | 4.95 | 195,970 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,602 |
| Countries in their Native Language | 0 | - | 4.99 | 199,716 |
| Independence from Whom | 0 | - | 4.99 | 213,031 |
| Subdivisions by Country | 0 | - | 4.87 | 50,610 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,416 |
| 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 | 126,644 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,226 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,892 |
| 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 | 154,566 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,031 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,252 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,507 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,370 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,441 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,141 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,572 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,835 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,673 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,320 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,235 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,825 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,325 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 81,190 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 77,858 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 77,095 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 155,545 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 74,145 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,706 |
| Communist Countries in History | 0 | - | 4.63 | 498,139 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,230 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,067 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,550 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,544 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,420 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,523 |
| 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 | 71,596 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,246 |
| 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 | 148,960 |
| 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 | 283,731 |
| Countries with Six Letters | 0 | - | 4.94 | 214,448 |
| Countries with W | 0 | - | 4.96 | 160,915 |
| Countries with Z | 0 | - | 4.98 | 292,418 |
| 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 | 135,085 |
| Countries that End in O | 0 | - | 4.92 | 160,206 |
| 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 | 171,138 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,819 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,745 |
| Countries That End in Y | 0 | - | 4.91 | 186,084 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,445 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,269 |
| 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 | 167,526 |
| 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 | 134,174 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,616 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,162 |
| 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 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,900 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,648 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,411 |
| Countries that End in L | 0 | - | 4.94 | 157,122 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,968 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,342 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,495 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,979 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,441 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,407 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,127 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,428 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,249 |
