| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 86,841 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,835 |
| WWII Geography | 0 | - | 4.81 | 121,545 |
| Countries in World War I | 0 | - | 4.88 | 229,518 |
| Countries in World War II | 0 | - | 4.55 | 920,669 |
| Important Cities in WWII | 0 | - | 4.42 | 94,307 |
| WWII Figures by Picture | 0 | - | 4.89 | 66,537 |
| Battle to Country | 0 | - | 4.91 | 54,153 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 292,098 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 278,279 |
| Countries with NO Military | 0 | - | 4.97 | 63,673 |
| WWII Decoder | 0 | - | 4.41 | 53,929 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,990 |
| Cities Bombed During WWII | 0 | - | 4.09 | 30,368 |
| Countries by Percent WWII Deaths | 0 | - | 4.05 | 30,268 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.78 | 78,412 |
| WWII for Dummies | 0 | - | 4.78 | 105,916 |
| Countries with the Most Tanks | 0 | - | 4.91 | 108,515 |
| World Leaders of the World Wars | 0 | - | 4.36 | 38,088 |
| Communist Countries in History | 0 | - | 4.63 | 498,901 |
| WWII Movies by Plot | 0 | - | 4.22 | 27,193 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,072 |
| Name the English Monarchs | 0 | - | 4.91 | 507,601 |
| Independence from Whom | 0 | - | 4.99 | 213,519 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,744 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,952 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,369 |
| Countries by Founding Story | 0 | - | 4.95 | 77,944 |
| One Country By Letter By Continent on the Map | 0 | - | 4.99 | 48,470 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 47,249 |
| Majority Muslim Countries | 0 | - | 4.98 | 378,631 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,826 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,877 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 58,639 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,496 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,958 |
| Cities by Former Name | 0 | - | 4.83 | 92,218 |
| NATO Countries | 0 | - | 4.98 | 284,232 |
| EU Countries Quiz | 0 | - | 4.99 | 279,152 |
| Recently Independent Countries | 0 | - | 4.98 | 160,574 |
| Top Five Countries by Religion | 0 | - | 4.93 | 173,920 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 150,108 |
| Countries of the World in 1900 | 0 | - | 4.89 | 86,261 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 197,202 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 152,594 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 324,546 |
| Countries by Number of Books Published | 0 | - | 4.95 | 73,238 |
| Countries by Former Name | 0 | - | 4.99 | 126,026 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,464 |
| Historical City to Country | 0 | - | 4.85 | 79,117 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.94 | 41,327 |
| The American Civil War | 0 | - | 4.62 | 52,673 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,864 |
| Former Capitals | 0 | - | 4.88 | 71,750 |
| Coldest World Capitals | 0 | - | 4.95 | 134,349 |
| Countries with U.S. Troops | 0 | - | 4.38 | 132,706 |
| Countries Settled by Vikings | 0 | - | 4.92 | 122,215 |
| Countries with the Most Christians | 0 | - | 4.93 | 145,013 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,308 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,274 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,965 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,402 |
| Buddhist Countries | 0 | - | 4.96 | 145,305 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,840 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,888 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 58,014 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 54,380 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 125,101 |
| Countries that Start with A | 0 | - | 4.98 | 2,179,289 |
| Countries that Start with B | 0 | - | 4.95 | 2,309,936 |
| Countries that Start with C | 0 | - | 4.96 | 1,834,134 |
| Countries that Start with D | 0 | - | 4.96 | 718,306 |
| Countries that Start with E | 0 | - | 4.95 | 1,387,292 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,888 |
| Countries that Start with H | 0 | - | 4.96 | 610,927 |
| Countries that Start with I | 0 | - | 4.92 | 1,296,425 |
| Countries that Start with J | 0 | - | 4.98 | 608,258 |
| Countries that Start with K | 0 | - | 4.97 | 822,137 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,555 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,660 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,761 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,464 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,250 |
| Countries that Start with U | 0 | - | 4.97 | 909,537 |
| Countries that Start with V | 0 | - | 4.98 | 612,758 |
| Countries that Start with F | 0 | - | 4.83 | 622,322 |
| Countries that Start with M | 0 | - | 4.97 | 1,390,097 |
| Former Flags | 0 | - | 4.97 | 108,878 |
| World Currency Quiz | 0 | - | 4.92 | 307,820 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 25,363 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,694 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,478 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,382 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,628 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,648 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,991 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,342 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 38,665 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,513 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,633 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 88,146 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,965 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.88 | 127,583 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,585 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,588 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.87 | 94,741 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,598 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,841 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,346 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,699 |
| Orthodox Countries | 0 | - | 4.92 | 133,011 |
| Richest Island Countries | 0 | - | 4.85 | 101,413 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,989 |
| Richest Countries A-Z | 0 | - | 4.91 | 104,315 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,427 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,642 |
| Monarchies of Europe | 0 | - | 4.90 | 99,077 |
| Monarchies of Asia | 0 | - | 4.97 | 71,641 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 238,737 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 227,556 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 194,132 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 124,417 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 142,040 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,330 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 46,008 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,382 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,420,465 |
| Countries with the Most Muslims | 0 | - | 4.95 | 161,430 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,456 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,745 |
| Countries by Oil Consumption | 0 | - | 4.96 | 125,276 |
| Largest Economies in 2050 | 0 | - | 4.88 | 112,112 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,789 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 105,199 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 85,279 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,761 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,399 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,122 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,021 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,834 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 155,082 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 100,743 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,776 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 119,300 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,162 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,213 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,249 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,753 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,115 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 36,278 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,631 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,218 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,077 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,069 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,777 |
| Military History Vocabulary | 0 | - | 4.92 | 67,783 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 119,606 |
| Ancient City to Country | 0 | - | 4.72 | 108,417 |
| City-States | 0 | - | 4.53 | 37,444 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,866 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,364 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,696 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,398 |
| Countries by Independence Day | 0 | - | 4.62 | 52,887 |
| Former Countries by Capital | 0 | - | 4.45 | 127,914 |
| Former Countries | 0 | - | 4.77 | 134,345 |
| Random Countries Hidden in the World Map | 0 | - | 4.83 | 114,799 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,562,569 |
| One Country By Letter By Continent | 0 | - | 5.00 | 126,119 |
| Name a Country A-Z | 0 | - | 5.00 | 246,397 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 95,776 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 123,338 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,557 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,845 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,066 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.81 | 55,317 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,295 |
| Name that Greek Letter | 0 | - | 4.93 | 325,384 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,008 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,044 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 57,638 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.89 | 97,785 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,746 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 100,465 |
| All Cities in India with Population of 1 Million | 0 | - | 4.84 | 48,119 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.98 | 119,970 |
| World's Biggest Financial Centers | 0 | - | 4.55 | 74,152 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,264 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,296 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,354 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,459 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,609 |
| One Capital by Letter by Continent | 0 | - | 4.99 | 17,718 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,001,725 |
| All OPEC Countries Ever | 0 | - | 4.70 | 100,486 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,664 |
| Countries Bordering "U" Countries | 0 | - | 4.83 | 24,983 |
| Countries in Random Rings of the World Map | 0 | - | 4.99 | 87,925 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,830 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 83,597 |
