Why are the Twin Towers actually twins?
Their birth and death date are the same.
Twin Towers Twins
Explanation
Explain Bear
Alright listen up, genius. This joke is about the Twin Towers. They're called twins because they were built at the same time. But here's the dark part: they also "died" on the same day, 9/11. It's funny because it's morbid, like your chances of understanding anything complex.