| Axis Occupied Countries of WWII | 0 | - | 4.99 | 222,918 |
| Countries in World War I | 0 | - | 4.88 | 222,466 |
| Countries in World War II | 0 | - | 4.52 | 880,578 |
| WWII Figures by Picture | 0 | - | 4.83 | 47,992 |
| Important Cities in WWII | 0 | - | 4.42 | 90,530 |
| Battle to Country | 0 | - | 4.91 | 50,187 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 273,838 |
| Countries with Nuclear Weapons | 0 | - | 4.87 | 253,516 |
| Countries with NO Military | 0 | - | 4.97 | 58,071 |
| WWII Decoder | 0 | - | 4.41 | 52,021 |
| Name a Valid Answer - World War II | 0 | - | 4.52 | 53,340 |
| Cities Bombed During WWII | 0 | - | 4.06 | 29,281 |
| Countries by Percent WWII Deaths | 0 | - | 4.12 | 28,852 |
| Countries with the Most Tanks | 0 | - | 4.87 | 88,014 |
| WWII Movies | 0 | - | 4.21 | 26,690 |
| Most Powerful Countries Bordering Each Other | 0 | - | 4.86 | 55,930 |
| World Leaders of the World Wars | 0 | - | 4.35 | 36,783 |
| Communist Countries in History | 0 | - | 4.63 | 483,084 |
| The Dictator Files: Adolf Hitler | 0 | - | 4.78 | 75,704 |
| WWII for Dummies | 0 | - | 4.78 | 100,729 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 185,568 |
| English Monarchs Quiz | 0 | - | 4.92 | 483,542 |
| Independence from Whom | 0 | - | 4.99 | 204,032 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 126,708 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,613 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 89,599 |
| Countries by Founding Story | 0 | - | 4.95 | 74,480 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 44,593 |
| Cities by Former Name | 0 | - | 4.84 | 89,105 |
| Majority Muslim Countries | 0 | - | 4.98 | 356,429 |
| NATO Countries Quiz | 0 | - | 4.98 | 262,019 |
| EU Countries Quiz | 0 | - | 4.99 | 258,899 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 154,277 |
| Top Five Countries by Religion | 0 | - | 4.91 | 161,928 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 141,714 |
| Countries of the World in 1900 | 0 | - | 4.88 | 79,035 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 187,313 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 38,581 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 143,464 |
| Countries by Number of Books Published | 0 | - | 4.95 | 69,956 |
| Countries by Former Name | 0 | - | 4.99 | 121,866 |
| Historical City to Country | 0 | - | 4.83 | 76,768 |
| All Modern-Day Countries Ever Controlled by French People | 0 | - | 4.99 | 55,998 |
| All Modern-Day Countries Ever Controlled by Turkic People | 0 | - | 4.95 | 39,649 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 326,399 |
| WWII A-Z #1 | 0 | - | 4.80 | 100,510 |
| WWII A-Z #2 | 0 | - | 4.44 | 53,360 |
| The American Civil War | 0 | - | 4.61 | 51,337 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 126,858 |
| Former Capitals Quiz | 0 | - | 4.87 | 69,965 |
| Coldest World Capitals | 0 | - | 4.95 | 131,926 |
| Countries with U.S. Troops | 0 | - | 4.38 | 130,329 |
| Countries Settled by Vikings | 0 | - | 4.93 | 118,529 |
| Countries with the Most Christians | 0 | - | 4.92 | 136,684 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 47,831 |
| Top Oil Reserve Countries | 0 | - | 4.92 | 72,075 |
| Warsaw Pact Countries | 0 | - | 4.82 | 83,129 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 83,463 |
| Buddhist Countries | 0 | - | 4.96 | 139,472 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 95,776 |
| Countries of the World in 1444 | 0 | - | 4.98 | 57,462 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.82 | 54,788 |
| Countries of Europe before World War II with a Map | 0 | - | 4.95 | 48,980 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 116,604 |
| Countries that Start with A | 0 | - | 4.98 | 2,097,206 |
| Countries that Start with B | 0 | - | 4.95 | 2,234,690 |
| Countries that Start with C | 0 | - | 4.96 | 1,773,634 |
| Countries that Start with D | 0 | - | 4.96 | 676,184 |
| Countries that Start with E | 0 | - | 4.95 | 1,337,025 |
| Countries that Start with G | 0 | - | 4.97 | 1,460,485 |
| Countries that Start with H | 0 | - | 4.96 | 576,491 |
| Countries that Start with I | 0 | - | 4.92 | 1,255,150 |
| Countries that Start with J | 0 | - | 4.98 | 575,878 |
| Countries that Start with K | 0 | - | 4.97 | 788,781 |
| Countries that Start with L | 0 | - | 4.98 | 1,058,350 |
| Countries that Start with N | 0 | - | 4.93 | 1,085,045 |
| Countries that Start with P | 0 | - | 4.95 | 1,184,466 |
| Countries that Start with S | 0 | - | 4.98 | 1,712,769 |
| Countries that Start with T | 0 | - | 4.89 | 985,168 |
| Countries that Start with U | 0 | - | 4.97 | 883,897 |
| Countries that Start with V | 0 | - | 4.98 | 592,172 |
| Countries that Start with F | 0 | - | 4.83 | 594,542 |
| Countries that Start with M | 0 | - | 4.97 | 1,347,029 |
| Former Flags | 0 | - | 4.98 | 103,700 |
| World Currency Quiz | 0 | - | 4.91 | 275,799 |
| Countries With the Largest Air Forces | 0 | - | 4.47 | 50,447 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 163,910 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 46,243 |
| Divided World City Name Puzzle #2 | 0 | - | 4.81 | 34,907 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 84,295 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.89 | 122,430 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 93,373 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.85 | 91,672 |
| World Capitals in the Answer | 0 | - | 4.93 | 74,095 |
| Capital Cities with the Least Precipitation | 0 | - | 4.88 | 28,634 |
| Catholic Countries Quiz | 0 | - | 4.81 | 209,641 |
| Countries with the Most Catholics | 0 | - | 4.90 | 104,191 |
| Orthodox Countries | 0 | - | 4.92 | 127,333 |
| Richest Island Countries | 0 | - | 4.83 | 96,807 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 75,834 |
| Monarchies of Europe | 0 | - | 4.89 | 94,824 |
| Monarchies of Asia | 0 | - | 4.97 | 69,204 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 308,881 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 226,843 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 216,773 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 184,887 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.96 | 117,430 |
| Top Five Countries by Random Categories | 0 | - | 4.94 | 129,172 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 66,392 |
| Modern-Day Countries of the Holy Roman Empire on a Map | 0 | - | 4.93 | 43,575 |
| Asian Country Superlatives | 0 | - | 4.83 | 79,051 |
| Countries with the Most Muslims | 0 | - | 4.94 | 156,171 |
| Countries with the Most Exports | 0 | - | 4.96 | 151,104 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 185,004 |
| Countries by Oil Consumption | 0 | - | 4.96 | 117,995 |
| Largest Economies in 2050 | 0 | - | 4.90 | 108,703 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 253,951 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 100,199 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 81,541 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 107,546 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 190,034 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 114,697 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 64,791 |
| European Geography By Letter - B #2 | 0 | - | 4.81 | 67,101 |
| Name the Constellations - With a Map | 0 | - | 4.91 | 34,346 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 145,213 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 72,279 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.94 | 59,830 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 67,302 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 53,724 |
| Military History Vocabulary | 0 | - | 4.91 | 65,101 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 223,287 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 159,383 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.89 | 104,537 |
| Category Elimination - African Geography #1 | 0 | - | 4.91 | 88,232 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.95 | 92,305 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 36,396 |
| Ancient City to Country | 0 | - | 4.70 | 105,960 |
| City-States | 0 | - | 4.53 | 36,607 |
| Damaged and Destroyed Cities | 0 | - | 4.43 | 43,927 |
| City Where It Happened #2 | 0 | - | 4.44 | 52,434 |
| City Where It Happened #3 | 0 | - | 4.53 | 39,561 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 127,373 |
| Name a World Capital A-Z | 0 | - | 5.00 | 171,257 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 76,511 |
| Countries by Independence Day | 0 | - | 4.61 | 52,160 |
| Former Countries by Capital | 0 | - | 4.44 | 125,589 |
| Former Countries | 0 | - | 4.74 | 130,533 |
| Guerrillas by Country | 0 | - | 4.43 | 40,438 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 88,799 |
| Richest Countries A-Z | 0 | - | 4.92 | 98,665 |
| Large Countries with Small Economies | 0 | - | 4.94 | 78,767 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 107,165 |
| One Country By Letter By Continent | 0 | - | 5.00 | 90,275 |
| Name a Country A-Z | 0 | - | 5.00 | 231,544 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 189,402 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 123,638 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 121,073 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 74,577 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 150,172 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 96,440 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 75,026 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 114,860 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 102,617 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 112,192 |
| Countries of Iberia in History with a Map | 0 | - | 4.89 | 39,342 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 57,879 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 82,975 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.84 | 52,641 |
| World's Biggest Financial Centers | 0 | - | 4.50 | 46,957 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 101,336 |
| Cities Where Famous People Died | 0 | - | 4.43 | 32,649 |
| One Capital by Letter by Continent | 0 | - | 4.98 | 16,065 |
| Countries of the World Quiz | 0 | - | 5.00 | 45,336,792 |
| OPEC Countries Quiz | 0 | - | 4.74 | 83,909 |
| Commonwealth of Nations Countries | 0 | - | 4.93 | 232,781 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.77 | 41,092 |
| One Country By Letter By Continent on the Map | 0 | - | 4.99 | 40,736 |
| Roman Provinces on a Map | 0 | - | 4.53 | 35,282 |
| The Trojan War | 0 | - | 4.81 | 38,429 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.83 | 105,438 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 82,324 |
| Roman Emperors | 0 | - | 4.96 | 112,033 |
| Houses of British Monarchs | 0 | - | 4.52 | 64,201 |
| Boundary Waters | 0 | - | 4.92 | 86,890 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 33,865 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 92,990 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 57,983 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 58,152 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 67,678 |
| Cities With the Most Billionaires | 0 | - | 4.77 | 100,933 |
| Cities by Founder and Date | 0 | - | 4.55 | 28,743 |
| City Where It Happened #1 | 0 | - | 4.26 | 105,424 |
| World Capitals Quiz | 0 | - | 5.00 | 4,896,636 |
| Top 10 Hottest European Capitals | 0 | - | 4.63 | 32,747 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 395,610 |
| Countries Unconquered since 1850 | 0 | - | 4.34 | 64,130 |
| Longest Uninterrupted Democracies | 0 | - | 4.05 | 32,795 |
| Sharia Law Countries | 0 | - | 4.48 | 62,282 |
| Most Recent Country To ... | 0 | - | 4.32 | 54,618 |
