Ravi and Kunal are good in Hockey and Volleyball. Sachin and Ravi are good in Hockey and Baseball. Gaurav and Kunal are good in Cricket and Volleyball. Sachin, Gaurav and Michael are good in Football and Baseball. Who is good in Hockey, Cricket and Volleyball?

Let us track the sports played by each person:
* Ravi: Hockey, Volleyball, Baseball
* Kunal: Hockey, Volleyball, Cricket
* Sachin: Hockey, Baseball, Football
* Gaurav: Cricket, Volleyball, Football, Baseball
* Michael: Football, Baseball

We need to identify the person who is good in Hockey, Cricket, and Volleyball.
Looking at Kunal:

* Good in Hockey (from the first statement)
* Good in Volleyball (from the first and third statements)
* Good in Cricket (from the third statement)

Thus, Kunal is good in Hockey, Cricket, and Volleyball.