Answer:
I always murmur but never talk. Always run but never walk. I have a bed but never sleep, have a mouth but never speak. What am I?
What three letters change a boy into a man?
Squeeze me and I cry tears as red as flesh, but my heart is made of stone. What am I?
The more of me you take, the more I appear behind you. What am I?
I save lives on the ground and in the air. What am I?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?