"Which is heavier, a ton of feathers or a ton of gold? Everything is equal in a cruelly indifferent universe." Existential Riddles by Ethan Kuperberg.
In 1602, a cobbler strolling outside of Bologna discovered a colorless stone with the curious ability to "accumulate light when exposed to the sun and to emit it in the darkness." His lapis solaris was to be the chemical sensation of the century. [more inside]
Sadie tells Maurice, "You’re a schmuck! You always were a schmuck and you always will be a schmuck! You look, act and dress like a schmuck! You’ll be a schmuck until the day you die! And if they ran a world-wide competition for schmucks, you would be the world’s second biggest schmuck!" "Why only second place?" Maurice asks. "Because you’re a schmuck!" Sadie screams. Some Jewish humor.
Grand Illusions: Optical illusions, scientific toys, visual effects, brain teasers, and (perhaps) just a little bit of magic!
Riddles and more riddles - Easy Riddles and Ancient Riddles, Math Riddles and Traditional Riddles, Anglo-Saxon Riddles and Lawyer Riddles, Dirty Riddles and Logic Riddles, Medieval Riddles and Awful Riddles. Finally: Ambiguity, Classification and Change: The Function of Riddles.
So What Happened After The Wise Man Discovered He Was Wearing The Red Hat? Don Steinberg's hilarious brainteaser aftermaths inevitably makes one wonder what happens after fairy-tale endings or the punchlines in jokes.
This really hurt me, but it's all worth it for the Panda joke (#316). In fact, you really only need to read the first two sentences for it to be funny. Well, it made me laugh, anyway.