| Countries of the World Quiz | 0 | - | 5.00 | 47,698,815 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,108 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,971 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,267 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,546 |
| Landlocked Countries | 0 | - | 4.99 | 423,412 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,769 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,593 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,224 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,065 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,172 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,848 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,015 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,755 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,300 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,264 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,788,989 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,177 |
| Himalayan Countries | 0 | - | 4.94 | 139,376 |
| Andean Countries | 0 | - | 4.94 | 84,960 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,173 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,340 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,742 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,055 |
| Danube Countries | 0 | - | 4.97 | 72,171 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,251 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,573 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,620 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,125 |
| European Landlocked Countries | 0 | - | 4.99 | 147,325 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,904 |
| Countries with the Most Species | 0 | - | 4.99 | 103,384 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,039 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,662 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,777 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,649 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,406 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,810 |
| Countries in the Alps | 0 | - | 4.87 | 118,430 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,925 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,368 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,785 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,767 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,681 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,071 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,866 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,638 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,273 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,991 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,745 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,612 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,355 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,604 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,679 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,263 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,436 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,012 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,298 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,723 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,538 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,346 |
| Largest Countries By Category | 0 | - | 4.97 | 158,480 |
| Countries by Countries | 0 | - | 4.96 | 63,401 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,841 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,873 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,973 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,272 |
| Island Countries | 0 | - | 4.99 | 711,590 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,801 |
| Northernmost Countries | 0 | - | 4.99 | 362,748 |
| Countries of South America | 0 | - | 5.00 | 929,405 |
| Countries of Oceania | 0 | - | 5.00 | 1,059,483 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,881,950 |
| "Land" Countries | 0 | - | 4.98 | 337,755 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,343 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,035 |
| Orthodox Countries | 0 | - | 4.92 | 132,475 |
| Richest Island Countries | 0 | - | 4.85 | 100,947 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,387,457 |
| Monarchies of Europe | 0 | - | 4.90 | 98,526 |
| Monarchies of Asia | 0 | - | 4.97 | 71,339 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,130 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,821 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,162 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,618 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,715 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 273,505 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,692 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,841 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,213 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,744 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,013 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,343 |
| Countries with Megacities | 0 | - | 4.99 | 265,600 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,138 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,700 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,398 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,777 |
| Countries by Official Language | 0 | - | 4.95 | 195,548 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,808 |
| Countries in their Native Language | 0 | - | 4.99 | 199,328 |
| Independence from Whom | 0 | - | 4.99 | 212,450 |
| Subdivisions by Country | 0 | - | 4.87 | 50,511 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,988 |
| Megadiverse Countries | 0 | - | 4.96 | 135,126 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,352 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,437 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,320 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,153 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,322 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,676 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,669 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,444 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,728 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,196 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,996 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,985 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,299 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,037 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,458 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,677 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,151 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,499 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,442 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,508 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,197 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,763 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,101 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,217 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,458 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,534 |
| Tallest Countries North to South | 0 | - | 4.83 | 123,643 |
| Widest Countries East to West | 0 | - | 4.92 | 129,896 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,495 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,946 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,412 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,877 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,758 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,024 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,429 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,833 |
| Companies by Country | 0 | - | 4.61 | 119,955 |
| Countries with Double Letters | 0 | - | 4.96 | 96,576 |
| Countries that End in N | 0 | - | 4.95 | 171,471 |
| Countries with Five Letters | 0 | - | 4.96 | 283,056 |
| Countries with Six Letters | 0 | - | 4.94 | 213,921 |
| Countries with W | 0 | - | 4.96 | 160,569 |
| Countries with Z | 0 | - | 4.98 | 291,842 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,941 |
| Countries That End in U | 0 | - | 4.95 | 120,980 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,720 |
| Countries that End in O | 0 | - | 4.92 | 159,636 |
| Countries that End in R | 0 | - | 4.87 | 119,052 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,809 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,399 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,874 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,618 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,526 |
| Countries That End in Y | 0 | - | 4.91 | 185,966 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,130 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,029 |
| Countries that End in I | 0 | - | 4.94 | 135,192 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,307 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,908 |
| Countries That End in NIA | 0 | - | 4.92 | 109,876 |
| Countries That End in BIA | 0 | - | 4.93 | 149,353 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,284 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,566 |
| Countries That End in RIA | 0 | - | 4.93 | 126,914 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,165 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,980 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,905 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,332 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,885 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,660 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,153 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,479 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,526 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,156 |
| Countries that End in L | 0 | - | 4.94 | 156,962 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,476 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,300 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,127 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,052 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,101 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,026 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,869 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,271 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,011 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,663 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,016 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,159 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,524 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,454 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,586 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,747 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,080 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,608 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,565 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,456 |
