Answer:
It is a sound of empty, speak and it'll talk back plenty. But all the more you yack, you'll get the same words back.
My first is in window but not in pane. My second's in road but not in lane. My third is in oval but not in round. My fourth is in hearing but not in sound. My whole is known as a sign of peace. And from noah's ark won quick release.
I'm a bacteria that causes typhoid What's my name ?
I always run but never walk, I sometimes sing but cannot talk, No head on which a hat to place, You always look me in the face.
Held firmly in the hands, like a sword it cuts deep. Bloodless strokes, all, then forward we leap.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?