Answer:
What is full of holes but still holds water
Talks like this, a green wise man does. Guess my clue, you will.
Take one out and scratch my head, I am now black but once was red.
I drift forever with the current down these long canals theyβve made, Tame, yet wild, I run elusive Multitasking to your aid. Before I came, the world was darker, colder, sometimes, rougher, true. But though I might make living easy, Iβm good at killing people too.
Up on high I wave away but not a word can I say.
What covers its face with its hands, speaks no language, yet most known what it's saying?