Answer:
I may be made of metal bone or wood and have many teeth. My bite hurts no one and the ladies love me.
I have keys but no locks. I have space but no room. You can enter but canβt go outside. What am I?
In my life I must bare my bloodline I must share.
What invention lets you look right through a wall?
Born of sorrow, grows with age, you need a lot to be a sage. What is it?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?