| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,127 |
| Richest Island Countries | 0 | - | 4.84 | 100,425 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,377 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,033 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,187 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,468 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,073 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,249 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,514 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 133,804 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,098 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,918 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,846 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,096 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 100,015 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,376 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,197 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,811 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,016 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,467 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,722 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,058 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,397 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 290,395 |
| Companies by Country | 0 | - | 4.61 | 119,572 |
| Five Richest Countries by Continent | 0 | - | 4.69 | 207,205 |
| World Currency Quiz | 0 | - | 4.91 | 302,578 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,417 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,709 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,267 |
| Orthodox Countries | 0 | - | 4.92 | 131,470 |
| Battle to Country | 0 | - | 4.91 | 53,252 |
| Monarchies of Europe | 0 | - | 4.90 | 98,058 |
| Monarchies of Asia | 0 | - | 4.97 | 71,043 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,832 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,284 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,568 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,354 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,614 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,421,058 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,999 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,946 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 109,907 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,256 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,485 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 132,914 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,015 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,424 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,117 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,894 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,956 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,042 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,909 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,927 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,794 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,221 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,625 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,778 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,911 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,748 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,398,594 |
| Countries in World War I | 0 | - | 4.88 | 228,004 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,881 |
| Hindu Countries | 0 | - | 4.86 | 50,083 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,673 |
| Boundary Waters | 0 | - | 4.92 | 88,429 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,125 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,009 |
| Cities With the Most Billionaires | 0 | - | 4.77 | 102,354 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,878 |
| Landlocked Countries | 0 | - | 4.99 | 419,734 |
| Countries Richer Than Their Neighbors | 0 | - | 4.46 | 72,598 |
| Countries with the Most Cathedrals | 0 | - | 4.49 | 45,865 |
| Oil Export Dependent Countries | 0 | - | 4.56 | 49,829 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,762,245 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,958 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,088 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,200 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,762 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,691 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,283 |
| World's Biggest Airlines | 0 | - | 4.42 | 125,032 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,328 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,143 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,586 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,543 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,868 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,547 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,736 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,827 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,049 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,709 |
| Busiest Container Ports | 0 | - | 4.11 | 37,396 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,584,775 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,834 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,790 |
| Island Countries | 0 | - | 4.99 | 710,100 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,332 |
| Himalayan Countries | 0 | - | 4.95 | 137,767 |
| Andean Countries | 0 | - | 4.95 | 84,102 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,340 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,878 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,970 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,449 |
| Danube Countries | 0 | - | 4.97 | 71,744 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,672 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,142 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,808 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,885 |
| European Landlocked Countries | 0 | - | 4.99 | 146,865 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,246 |
| Countries with the Most Species | 0 | - | 4.99 | 103,010 |
| Countries with the Highest Taxes | 0 | - | 4.38 | 87,555 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,404 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,458 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,622 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,374 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,046 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,442 |
| Countries in the Alps | 0 | - | 4.87 | 117,824 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,221 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,550 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,473 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,329 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,212 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,781 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,376 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,262 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,024 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,627 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,374 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,995 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,262 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,284 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,366 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,119 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,627 |
| Catholic Countries | 0 | - | 4.79 | 214,840 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,662 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,764 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,450 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,043 |
| Top Net Food-Exporting Countries | 0 | - | 4.42 | 33,429 |
| Largest Countries By Category | 0 | - | 4.97 | 157,792 |
| Countries with the Largest Merchant Navies | 0 | - | 4.56 | 22,903 |
| Countries by Countries | 0 | - | 4.96 | 62,929 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,684 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,332 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,182 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,488 |
| Communist Countries in History | 0 | - | 4.63 | 495,365 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,417 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,984 |
| Northernmost Countries | 0 | - | 4.99 | 360,877 |
| Countries with the Most Billionaires per Capita | 0 | - | 4.69 | 93,689 |
| Countries of South America | 0 | - | 5.00 | 924,075 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,720 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,869,336 |
| "Land" Countries | 0 | - | 4.98 | 335,997 |
| Countries with the Most Exports per Capita | 0 | - | 4.56 | 38,841 |
| Top 10 Countries by Per Capita Crude Oil Production | 0 | - | 4.74 | 57,109 |
| Top 10 Geothermal Countries | 0 | - | 4.56 | 32,118 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,654 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,482 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,771 |
| All Country Flags of the World | 0 | - | 5.00 | 3,657,488 |
| Top World Languages | 0 | - | 4.92 | 821,262 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,304 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,419 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,353 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,133 |
| Longest International Borders | 0 | - | 4.99 | 264,819 |
| Countries with Three Borders | 0 | - | 4.96 | 36,496 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,962 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,084 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,957 |
| Demonym of Every Country | 0 | - | 4.91 | 59,238 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,719 |
| Brand Logos Quiz #2 | 0 | - | 4.70 | 1,689,132 |
| Brand Logos Quiz #4 | 0 | - | 4.45 | 1,012,115 |
| Doctor Who Actors | 0 | - | 4.61 | 17,921 |
| Biblical Geography | 0 | - | 4.40 | 67,181 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,368 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,252 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,549 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,049 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,268 |
| Countries with Megacities | 0 | - | 4.99 | 262,473 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,097 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,121 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,399 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,171 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.70 | 107,710 |
| Biggest Cities in the World | 0 | - | 4.91 | 797,850 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,000 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 222,911 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,006 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,288 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,692 |
