Answer:
You do this into someone's ear when you want to be discreet.
What is often on the ground getting stepped on by others, but you donโt have to wash it because it never get dirty, in fact you couldnโt wash it even if you tried?
What has roots that nobody sees, and is taller than trees. Up, up it goes, and yet it never grows.
There are 7 birds in a tree. A hunter shoots one bird down. How many birds are left in the tree?
What goes inside boots and outside shoes?
What did the piece of wood say when he saw the screwdriver and screws approaching?