| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,138 |
| WWII Geography | 0 | - | 4.81 | 120,424 |
| Countries in World War I | 0 | - | 4.88 | 228,259 |
| Countries in World War II | 0 | - | 4.54 | 913,433 |
| Important Cities in WWII | 0 | - | 4.42 | 93,523 |
| WWII Figures by Picture | 0 | - | 4.89 | 65,595 |
| Battle to Country | 0 | - | 4.91 | 53,399 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,702 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,626 |
| Countries with NO Military | 0 | - | 4.97 | 62,428 |
| WWII Decoder | 0 | - | 4.41 | 53,588 |
| Name a Valid Answer - World War II | 0 | - | 4.53 | 55,467 |
| Cities Bombed During WWII | 0 | - | 4.08 | 30,174 |
| Countries by Percent WWII Deaths | 0 | - | 4.07 | 30,044 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.79 | 77,979 |
| WWII for Dummies | 0 | - | 4.78 | 105,020 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,497 |
| World Leaders of the World Wars | 0 | - | 4.36 | 37,867 |
| Communist Countries in History | 0 | - | 4.63 | 495,995 |
| WWII Movies by Plot | 0 | - | 4.21 | 27,091 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,880 |
| Name the English Monarchs | 0 | - | 4.91 | 503,161 |
| Independence from Whom | 0 | - | 4.99 | 211,857 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,545 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,528 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,327 |
| Countries by Founding Story | 0 | - | 4.95 | 77,282 |
| One Country By Letter By Continent on the Map | 0 | - | 4.99 | 47,297 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 46,770 |
| Majority Muslim Countries | 0 | - | 4.98 | 374,743 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,610 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,403 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 58,135 |
| WWII A-Z #1 | 0 | - | 4.73 | 103,042 |
| WWII A-Z #2 | 0 | - | 4.44 | 54,700 |
| Cities by Former Name | 0 | - | 4.83 | 91,611 |
| NATO Countries | 0 | - | 4.98 | 280,764 |
| EU Countries Quiz | 0 | - | 4.99 | 274,654 |
| Recently Independent Countries | 0 | - | 4.98 | 159,347 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,774 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,669 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,031 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 195,439 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,024 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,938 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,654 |
| Countries by Former Name | 0 | - | 4.99 | 125,196 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,613 |
| Historical City to Country | 0 | - | 4.84 | 78,577 |
| The American Civil War | 0 | - | 4.62 | 52,444 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,968 |
| Former Capitals | 0 | - | 4.88 | 71,482 |
| Coldest World Capitals | 0 | - | 4.95 | 133,586 |
| Countries with U.S. Troops | 0 | - | 4.38 | 132,133 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,675 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,364 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,613 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,829 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,532 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,326 |
| Buddhist Countries | 0 | - | 4.96 | 144,447 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,843 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,327 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,482 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 53,467 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,684 |
| Countries that Start with A | 0 | - | 4.98 | 2,164,017 |
| Countries that Start with B | 0 | - | 4.95 | 2,295,687 |
| Countries that Start with C | 0 | - | 4.96 | 1,823,117 |
| Countries that Start with D | 0 | - | 4.96 | 710,368 |
| Countries that Start with E | 0 | - | 4.95 | 1,378,034 |
| Countries that Start with G | 0 | - | 4.97 | 1,504,236 |
| Countries that Start with H | 0 | - | 4.96 | 605,306 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,978 |
| Countries that Start with J | 0 | - | 4.98 | 602,967 |
| Countries that Start with K | 0 | - | 4.97 | 816,372 |
| Countries that Start with L | 0 | - | 4.98 | 1,091,386 |
| Countries that Start with N | 0 | - | 4.93 | 1,118,404 |
| Countries that Start with P | 0 | - | 4.94 | 1,216,811 |
| Countries that Start with S | 0 | - | 4.98 | 1,755,740 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,374 |
| Countries that Start with U | 0 | - | 4.97 | 904,947 |
| Countries that Start with V | 0 | - | 4.98 | 609,638 |
| Countries that Start with F | 0 | - | 4.83 | 618,041 |
| Countries that Start with M | 0 | - | 4.97 | 1,382,428 |
| Former Flags | 0 | - | 4.97 | 107,819 |
| World Currency Quiz | 0 | - | 4.92 | 303,453 |
| Modern Day Countries of the Kushan Empire on a Map | 0 | - | 4.89 | 24,966 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 51,455 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,478 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,263 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,132 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,436 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,888 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,360 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 38,237 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,857 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,072 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 87,450 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,546 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.87 | 126,503 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,190 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,142 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.86 | 94,106 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,589 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,146 |
| Capital Cities with the Least Precipitation | 0 | - | 4.89 | 29,202 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,559 |
| Orthodox Countries | 0 | - | 4.92 | 132,058 |
| Richest Island Countries | 0 | - | 4.85 | 100,624 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,256 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,235 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,958 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,945 |
| Monarchies of Europe | 0 | - | 4.90 | 98,206 |
| Monarchies of Asia | 0 | - | 4.97 | 71,129 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,284 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,228 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,332 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,936 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 139,786 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,826 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 45,677 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,927 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,331,287 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,500 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,492 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,818 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,463 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,509 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,909 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,377 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,613 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,840 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,303 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,197 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,093 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,024 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,264 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 100,141 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,451 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,450 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,540 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,709 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,935 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,736 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,970 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,502 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 82,467 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,804 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,117 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,975 |
| Military History Vocabulary | 0 | - | 4.91 | 67,199 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,536 |
| Ancient City to Country | 0 | - | 4.70 | 108,065 |
| City-States | 0 | - | 4.53 | 37,280 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,691 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,127 |
| City Where It Happened #3 | 0 | - | 4.53 | 40,448 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,230 |
| Countries by Independence Day | 0 | - | 4.61 | 52,754 |
| Former Countries by Capital | 0 | - | 4.45 | 127,517 |
| Former Countries | 0 | - | 4.75 | 133,843 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 113,311 |
| Random Countries on the World Map | 0 | - | 5.00 | 1,550,168 |
| One Country By Letter By Continent | 0 | - | 5.00 | 124,123 |
| Name a Country A-Z | 0 | - | 5.00 | 243,701 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,139 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 121,872 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,931 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,176 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,342 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.82 | 54,857 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,969 |
| Name that Greek Letter | 0 | - | 4.93 | 323,929 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,812 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,703 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,814 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 96,164 |
| All Cities in China with Population of 1 Million | 0 | - | 4.82 | 46,133 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 98,884 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,586 |
| Every 100k+ City in the United States on a Map | 0 | - | 4.97 | 114,391 |
| World's Biggest Financial Centers | 0 | - | 4.56 | 72,451 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,120 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,166 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,865 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,011 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,799 |
| One Capital by Letter by Continent | 0 | - | 4.98 | 17,314 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,502,749 |
| All OPEC Countries Ever | 0 | - | 4.74 | 98,728 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,511 |
| Countries Bordering "U" Countries | 0 | - | 4.82 | 24,556 |
| Countries in Random Rings of the World Map | 0 | - | 4.99 | 86,700 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,283 |
| Modern-Day Countries of the Ottoman Empire on a Map | 0 | - | 4.96 | 82,793 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,972 |
| Countries in an Egg of the World Map | 0 | - | 4.91 | 64,523 |
| Random Countries on the Borderless World Map | 0 | - | 4.99 | 184,381 |
