Orchard

The puzzle that will drive you CRAZY!

Are you ready?

You have: 1 grid, 10 pine trees, 10 apple trees, 10 orange trees, and 10 pear trees.

Challenge: Can you solve it in 1.5 months?

Overview
This is Volume No.10 of the Mind Challenge series of Dr Wood.

Objective
Challenge 1: Take 10 pine trees. Now arrange these on the grid in five rows, so that there are four trees in each row.

Challenge 2: Keep the the pear trees on the grid. Now take 10 apple trees. Arrange these on the grid in five rows, so that there are four trees in each row.

Challenge 3: Keep the the pear and appletrees on the grid. Now take 10 orange trees. Arrange these on the grid in five rows, so that there are four trees in each row.

Challenge 4: Keep the the pear, orange and apple trees on the grid. Now take 10 pear trees. Arrange these on the grid in five rows, so that there are four trees in each row.