Greetings Riddlers!
Fun fact: the world’s oldest known riddle dates back to ancient Sumerians around 1850 BC. (Spoiler: it’s about beer—because of course it is 🍺).
Luckily, today’s riddle doesn’t require archaeology, just a little logic. Ready to test your inner Sherlock? Let’s flip the switch on today’s challenge…
You’re in a room with a single lightbulb, a window with blackout curtains, and three switches on the wall. Only one switch controls the bulb. You’re allowed to flip the switches as much as you want, but you can only check the bulb once.
How do you figure out which switch controls it?
Think you’ve cracked it? Careful—you only get one peek inside the room! The trick involves not just sight, but something sneakier most people forget… ⚡
