Answer:
The Titanic is still here.
I am an odd number. Take away one letter and I become even. What number am I?
I can be driven but have no wheels. I can be sliced but still remains whole
What invention lets you look right through a wall?
I am a red drum which sounds without being touched, and grows silent, when touched. What am I?
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.