A father's child, a mother's child, yet no one's son. Who am I?
I’m tall when I’m young, and I’m short when I’m old. What am I?
I am not a bull but I have horns. I am not an ass but I have a pack saddle. Wherever I go, I leave silver behind me. Who am I?
Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?
I add 5 to 9 and get 2. The answer is correct, so what am I?
I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?
Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?
When you say goodbye, I am what you need to tie. I come as a couple and go wherever you run. Who am I?
There was a greenhouse. Inside the greenhouse, there is a white house. Inside the white house, there is a red house. Inside the red house, there are lots of babies. What is It?
If your uncle’s sister is not your aunt, what relation is she to you?
I shave every day, but my beard stays the same. What am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.