Is it true that drinking water can get rid of hunger?

It can lessen the hunger pains and make you feel full if you drink enough.

eventually. however it is not good.

Try LOW GI foods - they help the blood sugar and are slow release (You won't be hungry to soon)

A glass before a meal makes sense ..

Well drinking anything curbs hunger for a short time a matter of minutes usually not hours.

If you are dehydrated your body can mistake it for hunger

Yes....its called soup