When I got four, I have it none. When I got two, I have it some. When I got none, I have it all. What is it?
What is in seasons, seconds, centuries and minutes but not in decades, years or days?
What do you answer even though it never asks you questions?
John leaves home and then he takes three right turns. John wants to return to home but he was scared of Jacob, who is wearing a mask. What is John Situation ?
Why is it against the law for a man living in Delhi to be buried in Mumbai?
What runs around the whole yard without moving?
Two fathers and two sons went fishing one day. They were there the whole day and only caught 3 fish. One father said, that is enough for all of us, we will have one each. How can this be possible?
What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?
What two things can you never eat for breakfast?
It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?
Railroad Crossing, look out for the cars. Can you spell that, without any R's ?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.
