| Countries Bordering "U" Countries | 0 | - | 4.82 | 24,430 |
| One Country By Letter By Continent | 0 | - | 5.00 | 123,472 |
| Countries that Start with A | 0 | - | 4.98 | 2,159,360 |
| Countries that Start with B | 0 | - | 4.95 | 2,291,327 |
| Countries that Start with C | 0 | - | 4.96 | 1,819,545 |
| Countries that Start with D | 0 | - | 4.96 | 707,866 |
| Countries that Start with E | 0 | - | 4.95 | 1,375,124 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,812 |
| Countries that Start with H | 0 | - | 4.96 | 603,309 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,399 |
| Countries that Start with J | 0 | - | 4.98 | 601,138 |
| Countries that Start with K | 0 | - | 4.97 | 814,443 |
| Countries that Start with L | 0 | - | 4.98 | 1,089,133 |
| Countries that Start with N | 0 | - | 4.93 | 1,116,092 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,587 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,674 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,642 |
| Countries that Start with U | 0 | - | 4.97 | 903,495 |
| Countries that Start with V | 0 | - | 4.98 | 608,542 |
| Countries that Start with F | 0 | - | 4.83 | 616,454 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,875 |
| Countries that Start with R | 0 | - | 4.43 | 446,785 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,797 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,365 |
| NATO Countries | 0 | - | 4.98 | 279,414 |
| EU Countries Quiz | 0 | - | 4.99 | 273,034 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,546 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 272,057 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,838 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,043 |
| Countries with NO Military | 0 | - | 4.97 | 62,004 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,423 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,344,935 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 319,955 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,975 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,850 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,174 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,388 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,677 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,926 |
| Buddhist Countries | 0 | - | 4.96 | 144,092 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,241 |
| Landlocked Countries | 0 | - | 4.99 | 419,120 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,757,732 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,466 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,152 |
| Orthodox Countries | 0 | - | 4.92 | 131,361 |
| Richest Island Countries | 0 | - | 4.84 | 100,333 |
| Battle to Country | 0 | - | 4.91 | 53,179 |
| Monarchies of Europe | 0 | - | 4.90 | 97,986 |
| Monarchies of Asia | 0 | - | 4.97 | 70,998 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,614 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,596 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 191,840 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,583 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,789 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,186 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,145 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,464 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,306 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,306 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,540 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,088 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,389 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,515 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,962 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,192 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,008 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,421 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,127 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,649 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,181 |
| Island Countries | 0 | - | 4.99 | 709,827 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,055 |
| Himalayan Countries | 0 | - | 4.94 | 137,497 |
| Andean Countries | 0 | - | 4.95 | 83,974 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,249 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,710 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,863 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,372 |
| Danube Countries | 0 | - | 4.97 | 71,682 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,581 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,072 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,684 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,754 |
| European Landlocked Countries | 0 | - | 4.99 | 146,793 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,160 |
| Countries with the Most Species | 0 | - | 4.99 | 102,926 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,294 |
| 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 | 59,319 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,001 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,373 |
| Countries in the Alps | 0 | - | 4.87 | 117,709 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,152 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,397 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,431 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,014 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,119 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,696 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,301 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,203 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,975 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,571 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,495 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,344 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,945 |
| 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 | 118,218 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,076 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,582 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,551 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,458 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,264 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,011 |
| Largest Countries By Category | 0 | - | 4.97 | 157,663 |
| Countries by Countries | 0 | - | 4.96 | 62,853 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,989 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,376,031 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,785 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,234 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,168 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,337 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,214 |
| Northernmost Countries | 0 | - | 4.99 | 360,549 |
| Countries of South America | 0 | - | 5.00 | 923,099 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,306 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,814 |
| "Land" Countries | 0 | - | 4.98 | 335,830 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,968 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,826 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,879 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,992 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,954 |
| 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 | 64,802 |
| Merged Country Shapes Quiz #1 | 0 | - | 4.93 | 59,297 |
| Merged Country Shapes Quiz #2 | 0 | - | 4.92 | 60,122 |
| Merged Country Shapes Quiz #3 | 0 | - | 4.86 | 41,934 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,583 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,518 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,788 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,076 |
| Countries with Megacities | 0 | - | 4.99 | 260,818 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,932 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,018 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,207 |
| 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 | 194,659 |
| All OPEC Countries Ever | 0 | - | 4.77 | 90,877 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,574 |
| Countries in their Native Language | 0 | - | 4.99 | 198,214 |
| Independence from Whom | 0 | - | 4.99 | 211,349 |
| 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 | 227,867 |
| Megadiverse Countries | 0 | - | 4.96 | 134,780 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,749 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,565 |
| 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 | 75,022 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,727 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,390 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,001 |
| 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 | 77,025 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,726 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,003 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,789 |
| 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 | 71,332 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,237 |
| World Map Quiz | 0 | - | 4.81 | 64,563 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,683 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,047 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,536 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,940 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,659 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,364 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,533 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,687 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,841 |
| 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 | 185,972 |
| 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 | 148,234 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,562 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,242 |
