Cursor need it?

I am a new postgres user

I want to get a list of tables from pg_tables where tables are like
‘%wo%’ (for example).. and then query that list ….

Select count(*) from tableVARIABLENAMEFROMFIRSTQUERY

In SQL SERVER I can do that using cursor but in postgresql I don’t
understand how to use cursors

Here is what I am trying to do
for each table on the list
Select tablename, count(*) tables from ( list of tables)

tablename tables
table1 25
table2 35

Any Idea would be appreciated

Thanks

Lucas