Law / Restaurant information (permits, tax, cost) needed [2]

Hi all,

I'm looking to open a restaurant in Poznan and was wondering if someone can help me with some information.

What type of permits do i need ( i do plan on selling beer)?

Pay roll and payroll tax? is the a difference between hiring students and someone full time?

At what tax rate should i do the menu?

Utility cost (average per month)?

what are the max hours of work per week if i hire someone full time?

what's the price of square meter if I'm leasing a place? what is the minimum lease i can do (1, 2, 3, 4 or 5 years)?

what is the current interest rate on loan from bank for a restaurant?

what is a good place to purchase restaurant equipment in Poznan (do they have a website)?

i believe this is the last information i need to complete business plan

any addition information I'm missing please let me know

thanks

Phil