Good Riddles

Question: Hold me by the neck and I won't mind,
if I get wrong I just need a good wind.
If you want me you better pick wisely,
just use your ears and I'll follow you blindly.

What am I?

Question: Two children are born in the same hospital, on the same year, on the same day, and have the same father and mother. But they are not twins.

How is this possible?

Question: Given to all man then taken away, you can beg for more time but I never stay What am I?

Question: Three men were told by God, " If you step on a duck, you shall marry the ugliest woman. However, if you do not step on a duck, you shall marry the most beautiful woman in all the land." The three men accepted. The first man stepped on a duck from not paying attention. The second man accidentally stepped on a duck in his son's room. The third man never stepped on a duck and was then married to the most beautiful woman he's ever seen. But why was he really married to the beautiful woman?

Question: I give advice to others,
yet I know nothing myself.
I am a hitchhiker destined to stay still.