Counting Methods

Is the question calling for a permutation or combination formula:

From a box of candles, you are to remove 5. How many different sets of 5 candles can you remove?

In how many different ways can a judge award three prizes out of a group of 10 students?

How many different groups of three people can the judge award out of 10?

In how many different ways can 4 people out of a group fo 12 be selected for a swimming contest?

How many distinct combinations of 3 socks can be made by randomly selecting socks out of a drawer with 8 different colored ones?