| Acting US Presidents | 524 | - | - |
| Most-Ratified International Treaties | 246 | - | - |
| Name the U.S. Presidents from Virginia | 367 | - | - |
| US Presidents by Published Books | 167 | - | - |
| US Presidents Who Wore a Powdered Wig | 333 | - | - |
| Wars by Treaty | 439 | - | - |
| Wars Named for Their Duration | 430 | - | - |
| WWI: Central Power... or Allied Power? | 1,103 | - | - |
| WWII: Axis... or Allies? | 3,781 | - | - |
| Presidents who Coined or Popularized Words | 87 | - | - |
| States that Have Been Blue the Longest | 34,334 | 0 | - |
| States that Have Been Red the Longest | 28,937 | 0 | - |
| States From Which the Most Presidents Came | 1,641 | - | - |
| States That Won Super Bowls | 1,932 | - | - |
| US States Where Voting in Presidential Elections is Easiest | 178 | - | - |
| US States Where Voting in Presidential Elections is Most Difficult | 229 | - | - |
| US States With Highest Passport Ownership 🛂 | 294 | - | - |
| US States With the Least Central Capitals | 382 | - | - |
| US States Without a "(Something) State" Nickname | 109 | - | - |
| Countries Never Visited by a US President (Outside Africa) | 526 | - | - |
| Countries of the Americas with the Strongest Militaries | 535 | - | - |
| Countries Founded by Former/Freed Slaves | 747 | - | - |
| Countries A-Z (Strongest Military) | 1,405 | - | - |
| Countries and Territories in Free Association | 670 | - | - |
| Countries with Diplomatic Missions of Northern Cyprus | 503 | - | - |
| Countries Party to the Antarctic Treaty System | 314 | - | - |
| Countries that Administered the Tangier International Zone | 268 | - | - |
| Countries Visited by John F. Kennedy During His Presidency | 553 | - | - |
| Countries Visited During the World Tour of Ulysses S. Grant | 189 | - | - |
| Countries Where Communist Symbols are Banned | 1,108 | - | - |
| Countries Where Turkey Has a Military Base | 606 | - | - |
| Countries With a Female Majority in Parliament | 135 | - | - |
| Countries With a Stronger Military Than All Neighbors | 2,268 | - | - |
| Countries with Chemical Weapons | 556 | - | - |
| Countries With Outermost Regions of the European Union (EU) | 642 | - | - |
| Countries with the Richest Monarchs | 168 | - | - |
| European Countries with Monarchs Regularly Participating in Government | 304 | - | - |
| Members of the Caribbean Community (CARICOM) | 279 | - | - |
| Most Populous Countries Never Visited by a US President | 332 | - | - |
| Countries Not Members of the IMF | 410 | - | - |
| Presidents with Airports Named After Them 🛫 | 161 | - | - |
| Which Country Has a Stronger Military? | 182 | - | - |
| US States With the Most Counties | 174 | - | - |
| Countries in Africa With the Strongest Military | 142 | - | - |
| Countries That are Elective Monarchies | 35 | - | - |
