Enjoy the Riddles

What holds water but has holes?

Sponge

There are 15 people who all jamp off a cliff, but only 14 of those men died - How?

One of them was a lady.

A five lettered food that begins with W.

If you take the first letter away its a source of energy.

If you take the third letter away its something you need to do to saty alive. 

If you take the fourth letter away if becomes a drink. What is it?

WHEAT