| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,544 |
| WWII Geography | 0 | - | 4.81 | 119,432 |
| Countries in World War I | 0 | - | 4.88 | 226,737 |
| Countries in World War II | 0 | - | 4.54 | 905,534 |
| Important Cities in WWII | 0 | - | 4.42 | 92,933 |
| WWII Figures by Picture | 0 | - | 4.85 | 50,607 |
| Battle to Country | 0 | - | 4.91 | 52,597 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,280 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,811 |
| Countries with NO Military | 0 | - | 4.97 | 61,254 |
| WWII Decoder | 0 | - | 4.41 | 53,077 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 54,797 |
| Cities Bombed During WWII | 0 | - | 4.08 | 29,929 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 29,778 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,388 |
| WWII for Dummies | 0 | - | 4.80 | 103,951 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,391 |
| World Leaders of the World Wars | 0 | - | 4.35 | 37,670 |
| Communist Countries in History | 0 | - | 4.63 | 492,873 |
| WWII Movies by Plot | 0 | - | 4.21 | 26,978 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,397 |
| Name the English Monarchs | 0 | - | 4.92 | 498,519 |
| Independence from Whom | 0 | - | 4.99 | 209,880 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,891 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,050 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,179 |
| Countries by Founding Story | 0 | - | 4.95 | 76,611 |
| One Country By Letter By Continent on the Map | 0 | - | 4.99 | 45,908 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,235 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,904 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,383 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,013 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 57,599 |
| WWII A-Z #1 | 0 | - | 4.80 | 102,448 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,362 |
| Cities by Former Name | 0 | - | 4.84 | 91,051 |
| NATO Countries | 0 | - | 4.98 | 276,325 |
| EU Countries Quiz | 0 | - | 4.99 | 270,349 |
| Recently Independent Countries | 0 | - | 4.98 | 158,078 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,235 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,924 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,653 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,372 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 149,113 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,365 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,972 |
| Countries by Former Name | 0 | - | 4.99 | 124,396 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,119 |
| Historical City to Country | 0 | - | 4.84 | 78,180 |
| The American Civil War | 0 | - | 4.62 | 52,185 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,794 |
| Former Capitals | 0 | - | 4.88 | 71,178 |
| Coldest World Capitals | 0 | - | 4.95 | 133,088 |
| Countries with U.S. Troops | 0 | - | 4.38 | 131,708 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,918 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,615 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,809 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,219 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,298 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,027 |
| Buddhist Countries | 0 | - | 4.96 | 143,057 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,823 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,636 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,939 |
| Countries of Europe before World War II with a Map | 0 | - | 4.94 | 52,422 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,245 |
| Countries that Start with A | 0 | - | 4.97 | 2,148,579 |
| Countries that Start with B | 0 | - | 4.95 | 2,281,341 |
| Countries that Start with C | 0 | - | 4.96 | 1,811,534 |
| Countries that Start with D | 0 | - | 4.96 | 702,381 |
| Countries that Start with E | 0 | - | 4.95 | 1,368,510 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,893 |
| Countries that Start with H | 0 | - | 4.96 | 598,647 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,100 |
| Countries that Start with J | 0 | - | 4.98 | 596,697 |
| Countries that Start with K | 0 | - | 4.97 | 810,031 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,665 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,567 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,311 |
| Countries that Start with S | 0 | - | 4.98 | 1,745,648 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,798 |
| Countries that Start with U | 0 | - | 4.97 | 900,404 |
| Countries that Start with V | 0 | - | 4.98 | 605,538 |
| Countries that Start with F | 0 | - | 4.83 | 612,767 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,228 |
| Former Flags | 0 | - | 4.97 | 106,833 |
| World Currency Quiz | 0 | - | 4.92 | 298,968 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,526 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,258 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,798 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,370 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,828 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,190 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,668 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,150 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 37,779 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,152 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,509 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 86,721 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,160 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.89 | 125,528 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,760 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,664 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.86 | 93,565 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,617 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,371 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,050 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,161 |
| Orthodox Countries | 0 | - | 4.91 | 130,496 |
| Richest Island Countries | 0 | - | 4.84 | 99,619 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,159 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,991 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,395 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,171 |
| Monarchies of Europe | 0 | - | 4.90 | 97,413 |
| Monarchies of Asia | 0 | - | 4.97 | 70,655 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,815 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,045 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,546 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,593 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 137,391 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,273 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 45,315 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,473 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,237,408 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,387 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,289 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,602 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,596 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,734 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,439 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 103,052 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,790 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,713 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,063 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,331 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,196 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,532 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,359 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,518 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,116 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,574 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,064 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,436 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,383 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,018 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,471 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,686 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,074 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,533 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,568 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,212 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,117 |
| Military History Vocabulary | 0 | - | 4.91 | 66,704 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,432 |
| Ancient City to Country | 0 | - | 4.70 | 107,658 |
| City-States | 0 | - | 4.53 | 37,122 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,516 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,992 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,261 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,101 |
| Countries by Independence Day | 0 | - | 4.56 | 52,629 |
| Former Countries by Capital | 0 | - | 4.45 | 127,096 |
| Former Countries | 0 | - | 4.75 | 132,771 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,821 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,537,537 |
| One Country By Letter By Continent | 0 | - | 5.00 | 121,948 |
| Name a Country A-Z | 0 | - | 5.00 | 240,740 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,154 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 120,282 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,192 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,450 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,596 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.82 | 54,346 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,647 |
| Name that Greek Letter | 0 | - | 4.94 | 321,872 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,634 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,347 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 55,919 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 94,525 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.91 | 97,221 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,098 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 112,684 |
| World's Biggest Financial Centers | 0 | - | 4.51 | 53,034 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 105,097 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,033 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,325 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,684 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,959 |
| One Capital by Letter by Continent | 0 | - | 4.98 | 17,027 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,978,951 |
| OPEC Countries | 0 | - | 4.74 | 84,842 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,497 |
| Countries Bordering "U" Countries | 0 | - | 4.81 | 24,121 |
| Countries in Random Rings of the World Map | 0 | - | 4.99 | 85,650 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,755 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 81,923 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,297 |
| Countries in an Egg of the World Map | 0 | - | 4.91 | 63,895 |
| Random Countries on the Borderless World Map | 0 | - | 4.99 | 182,434 |
