Good Riddles

Question: one day there were 2 dads and 2 sons and 4 apples each persons gets an apple but there's one left over why

Question: In Africa, a baby was born - Are the baby's teeth black or white?

Question: I can't read the clock. What time is it, John?

Question: When you don't have enough of me, you feel a kind of gloom. But when you are using me, it is time that you consume. What am I?

Question: Instruction manual, to and fro, if it’s wrong you'll still go - what is it?