I’m tall when I’m young, and I’m short when I’m old. What am I?
I welcome the day with a show of light, I stealthily came here in the night. I bathe the earthy stuff at dawn, But by noon, alas! I'm gone.
You measure my life in hours I serve you by expiring I vanish faster when I am thin and slower when I am thick The wind is my energy What am I?
I am a five-letter word and people eat me. If you remove the first letter I become an energy form. If you remove the first two letters, I am needed to live. Scramble the last three letters and I am a drink. What word am I?
When it is alive we sing, when it is dead we clap our hands. What is it?
Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. 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?
A father's child, a mother's child, yet no one's son. Who am I?
What is in seasons, seconds, centuries and minutes but not in decades, years or days?
You see me once in June, twice in November, and not at all in May. What am I?
I am Huge on Sunday and Saturday. I am small from Tuesday to Thursday. I do not exist on Monday and Friday. Who am I?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.