how many ministers does belgium have and what is their competence?

Answer

The various governments in Belgium have 48 ministers and 10 state secretaries. Below is the number per government. The distribution of competences can be viewed via the web link. This distribution changes from one government to another.

I do not have data on the other countries.

Federal government

15 ministers + 7 state secretaries

http://www.belgium.be/nl/about_belgie/overheid/federale_overheid/federale_regering/commissie_regering/

Walloon regional government

8 ministers

http://gouvernement.wallonie.be/composition

French Community Government

7 ministers

http://www.cfwb.be/index.php?id=416

Flemish government

9 ministers

http://www.vlaanderen.be/servlet/Satellite?c=Domain_C&cid=1191211214827&context=1141721623065—1191211215889-1191211214827&p=1186804409590&pagename=Infolijn%2FView

Brussels regional government

5 ministers + 3 state secretaries:

http://portail.irisnet.be/nl/region/region_de_bruxelles-capitale/autorites/gouvernement.shtml

German-speaking community government

4 ministers:

http://www.dglive.be/desktopdefault.aspx/tabid-218//216_read-12294/