caching table

Hi,
In my page, I have multiple queries to fetch data from same table with different scenarios. These multiple queries give me performance issues. So I am trying to cache the table and then query that with different scenarios and in this way I don't need to hit the database all the time.
But, I don't know how to cache the table and query from it.
Can anyone help?
Is there any other way to improve the performance?

See original post by georgenightjr