Answer:
What invention lets you look right through a wall?
I am useless when together but useful when I am broken apart. What am I?
Everyone asks for me but yet everyone hates to face me. For someone I am agony for others I am relief. Who am I?
I am owned by every man though my length differs. Their wives uses me after getting married.
Squeeze me and I cry tears as red as my flesh, but my heart is made of stone. What am I?
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk