| Countries Bordering "U" Countries | 0 | - | 4.82 | 24,430 |
| One Country By Letter By Continent | 0 | - | 5.00 | 123,475 |
| Countries that Start with A | 0 | - | 4.98 | 2,159,401 |
| Countries that Start with B | 0 | - | 4.95 | 2,291,369 |
| Countries that Start with C | 0 | - | 4.96 | 1,819,579 |
| Countries that Start with D | 0 | - | 4.96 | 707,887 |
| Countries that Start with E | 0 | - | 4.95 | 1,375,155 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,836 |
| Countries that Start with H | 0 | - | 4.96 | 603,329 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,414 |
| Countries that Start with J | 0 | - | 4.98 | 601,158 |
| Countries that Start with K | 0 | - | 4.97 | 814,474 |
| Countries that Start with L | 0 | - | 4.98 | 1,089,149 |
| Countries that Start with N | 0 | - | 4.93 | 1,116,114 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,602 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,711 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,661 |
| Countries that Start with U | 0 | - | 4.97 | 903,515 |
| Countries that Start with V | 0 | - | 4.98 | 608,558 |
| Countries that Start with F | 0 | - | 4.83 | 616,473 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,898 |
| Countries that Start with R | 0 | - | 4.43 | 446,805 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,797 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,373 |
| NATO Countries | 0 | - | 4.98 | 279,418 |
| EU Countries Quiz | 0 | - | 4.99 | 273,044 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,553 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 272,068 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,841 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,045 |
| Countries with NO Military | 0 | - | 4.97 | 62,006 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,424 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,346,417 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,962 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,995 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,855 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,178 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,391 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,678 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,932 |
| Buddhist Countries | 0 | - | 4.96 | 144,106 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,243 |
| Landlocked Countries | 0 | - | 4.99 | 419,135 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,757,808 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,467 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,153 |
| Orthodox Countries | 0 | - | 4.92 | 131,365 |
| Richest Island Countries | 0 | - | 4.84 | 100,335 |
| Battle to Country | 0 | - | 4.91 | 53,182 |
| Monarchies of Europe | 0 | - | 4.90 | 97,987 |
| Monarchies of Asia | 0 | - | 4.97 | 70,998 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,620 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,604 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,841 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,584 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,790 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,186 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,147 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,469 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,306 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,308 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,550 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,090 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,390 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,518 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,966 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,194 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,011 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,422 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,140 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,654 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,191 |
| Island Countries | 0 | - | 4.99 | 709,833 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,063 |
| Himalayan Countries | 0 | - | 4.94 | 137,501 |
| Andean Countries | 0 | - | 4.95 | 83,978 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,251 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,719 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,867 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,373 |
| Danube Countries | 0 | - | 4.97 | 71,686 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,587 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,078 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,686 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,757 |
| European Landlocked Countries | 0 | - | 4.99 | 146,797 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,160 |
| Countries with the Most Species | 0 | - | 4.99 | 102,928 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,297 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,436 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,597 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,320 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,001 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,374 |
| Countries in the Alps | 0 | - | 4.87 | 117,712 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,154 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,400 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,432 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,016 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,124 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,709 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,302 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,205 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,977 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,571 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,496 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,345 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,946 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,202 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,223 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,223 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,077 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,582 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,553 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,462 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,265 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,011 |
| Largest Countries By Category | 0 | - | 4.97 | 157,665 |
| Countries by Countries | 0 | - | 4.96 | 62,855 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,991 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,376,079 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,786 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,235 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,168 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,339 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,239 |
| Northernmost Countries | 0 | - | 4.99 | 360,553 |
| Countries of South America | 0 | - | 5.00 | 923,119 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,331 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,880 |
| "Land" Countries | 0 | - | 4.98 | 335,834 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,969 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,827 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,880 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,993 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,957 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,353 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,892 |
| One Border Countries - Shape Quiz | 0 | - | 4.84 | 64,803 |
| Merged Country Shapes Quiz #1 | 0 | - | 4.93 | 59,299 |
| Merged Country Shapes Quiz #2 | 0 | - | 4.92 | 60,123 |
| Merged Country Shapes Quiz #3 | 0 | - | 4.86 | 41,935 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,589 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,539 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,790 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,080 |
| Countries with Megacities | 0 | - | 4.99 | 260,871 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,935 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,020 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,214 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,034 |
| One Capital by Letter by Continent | 0 | - | 4.98 | 17,237 |
| Countries by Official Language | 0 | - | 4.95 | 194,664 |
| All OPEC Countries Ever | 0 | - | 4.77 | 90,887 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,579 |
| Countries in their Native Language | 0 | - | 4.99 | 198,215 |
| Independence from Whom | 0 | - | 4.99 | 211,354 |
| Subdivisions by Country | 0 | - | 4.86 | 50,294 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,736 |
| Countries in World War I | 0 | - | 4.88 | 227,869 |
| Megadiverse Countries | 0 | - | 4.96 | 134,781 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,750 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,569 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,191 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,762 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,023 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,727 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,391 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,002 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,851 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,492 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,996 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,027 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,726 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,004 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,790 |
| Countries with the Most Forest A-Z | 0 | - | 4.63 | 55,428 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,163 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,333 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,243 |
| World Map Quiz | 0 | - | 4.81 | 64,563 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,688 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,049 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,538 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,942 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,659 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,369 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,533 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,688 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,842 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,273 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,297 |
| Widest Countries East to West | 0 | - | 4.92 | 129,390 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,387 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,975 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,998 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,522 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,236 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,563 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,243 |
