## IQ Puzzle with Solution

One day, a girl celebrated her birthday.
Two days later, her elder twin brother celebrated his birthday.
How is this possible?

Overall, the solution to this puzzle may seem simple once revealed, but the journey to reaching that solution is filled with twists and turns that exercise our minds and broaden our understanding.

The girl is not a twin. Two days later, it was the birthday of her elder twin brother who was born with his twin sibling.

Explanation

The puzzle presented here is a classic example of how a simple riddle can twist our perception and challenge our assumptions. At first glance, it seems impossible for a girl to celebrate her birthday before her elder twin brother. However, upon closer examination, the solution becomes apparent.

The key to understanding this puzzle lies in the assumption that the girl and her brother are twins. This assumption leads us to believe that they were born on the same day and should therefore celebrate their birthdays on the same date.

However, the riddle cleverly subverts this assumption by revealing that the girl is not a twin at all.