pron 
1.  (z rzeczownikiem policzalnym) how many
(z rzeczownikiem niepoliczalnym) how much: ~ ludzi? how many people?
~ masz lat? how old are you?
 ~ czasu? how long?
 ~ to kosztuje? how much is this?
 how much does it cost?
 ilu ich było? how many of them were there?
2.  (w odniesieniu do odległości) how far: ~ jest stąd do Londynu? how far is it from here to London? 
3.  (rel) as much/many as
 how much/how many: weź ~ chcesz take as much/many as you like
 nie wiem ~ wziął I don't know how much/many he has taken. 
4.  (w zdaniu wykrzyknikowym): ~ tego! what a lot!
 ~ ludzi! what a lot of people! 
5.  (stopień nasilenia) how very
 how awfully: ~ sił as hard as you can
 ~ tchu as fast as you can. 
6.  (wyrażenia): o ~if
 o ~ nie if not
 unless
 (pod warunkiem) provided
 providing
 o ~ wiem as far as I know
 o tyle o ~as much as
 insofar as
HOW MUCH
HOW MANY
adv how much, how many
tyle... ~ as much (many) ... as
~ masz lat? how old are you?
 o ~ how far, so far as
what
often as