Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?
Twice ten are six of us, Six are but three of us, Nine are but four of us; What can we possibly be? Would you know more of us? Twelve are but six of us, Five are but four, do you see? What are we?
I can sizzle like bacon, I am made with an egg, I have plenty of backbone, but lack a good leg, I peel layers like onions, but still remain whole, I can be long, like a flagpole, yet fit in a hole.
Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months
I don't get anymore wetter, no matter how much rain falls on me.
They came out at night, without being called. They lost at day, without being stolen. Who are they?
What have one eye but still cannot see?
Do You See It?
If six children and two dogs were under an umbrella, how come none of them got wet?
I’m tall when I’m young, and I’m short when I’m old. What am I?
When I go in I might cause pain. I cause you to spit and ask you not to swallow. I can fill your hole. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.