How many Vatican counsels have there been? And what exactly are they? ?

Answer 1

Around twenty. Councils bring together all the Bishops, along with the Pope, in order to infallibly define significant theological matters; hopefully, with the assistance of the Holy Spirit. 

Answer 2

A bunch of men trying to figuer out how to get more money out of the congregation.  How to build fancier churches to live in.  How to get wealthy.

Answer 3

*councils

There have been 21 councils over the past 1900 years.