riddles for fun

see if you are smart to solve these riddles. i’ll give the answers in 5 days time.

1) mary’s parents have 4 kids – north, south, east… what is the name of the 4th
kid?

2) if it takes 5 days to dig a hole, how long would it take to dig half a hole?

3) what lady is it whom nobody wants to know? (no, the answer is not me!)

4) if you want to get rich, why is it you should shut your mouth?

5) if cows talked all at once, what would they say?