Once upon a time, there was a wise father with four sons.

The father wanted to teach his sons how to solve problems.

So he gave each of them a small puzzle to solve.

The first son had a puzzle with lots of tiny pieces.

He tried putting the pieces together, but got confused.

Instead of giving up, he asked his brothers for help.

Together, they worked as a team and solved the puzzle.

The second son had a puzzle that was missing a piece.

He searched everywhere but couldn't find the missing piece.

Finally, he decided to make a new piece himself.