In my garden, i have many trees but only one of them is mango tree.
In this mango trees, there are some mangoes(as expected).
But after a strong wind, there are neither mangoes on tree nor on ground.
At first, there were 2 mangoes on the tree. After the wind blew, one mangoe fell on the ground. So there where no mangoes on the tree and there were no mangoes on the ground.
*mangoes => more than one mango
Another solution(non tricky one)
The wind blew so hard that the mangoes fell of the tree and blew along the ground.