Name the four Vedas and mention what does each deal with.

The four Vedas are:

1. The Rig Veda — The Rig veda is composed of 10 mandalas. It has hymns that are dedicated to Gods by sages. They also tell us about life of people during that time.
2. The Sama Veda — The hymns of Sama Veda were meant to be sung at the time of the sacrifice by priests.
3. The Yajur Veda — It deals with hymns recited during the performance of yajnas.
4. The Atharva Veda — The hymns of the Atharva Veda deal with magic and charm. The hymns also deal with Gyan (knowledge), Karma (action), upasana (invocation) and some with medicine and treatment.