I’m tall when I’m young, and I’m short when I’m old. What am I?
The more you take me, the more you leave me behind. Who Am I?
How can you write nineteen in a manner that if we take out one, it becomes twenty?
John was piloting a plane behind a car but was never able to overtake it. Why?
Begin with a word, five letters to my name, Remove the first and last but I am the same Take out my middle and still, I remain. What word am I?
If a wheel has 54 spokes, how many spaces are there between the spokes?
I have an eye but still cannot see. Who am I?
Two in a corner, one in a room, zero in a house, but one in a shelter. What is it?
I live in a bowl. I can swim. I have a tail. I also have fins and big eyes. What am I?
They came out at night, without being called. They lost at day, without being stolen. Who are they?
I have no life, but I can die. What am I?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki