Fun Riddles

Question: What starts with the letter "t", is filled with "t" and ends in "t"?

Question: Smell me, buy me, and deliver me.
I won't change.

What am I?

Question: I'm teary-eyed but never cry.
Silver-tongued, but never lie.
Double-winged, but never fly.
Air-cooled, but never dry.

What am I?

Question: Without fingers, I point,
without arms, I strike,
without feet, I run.

What am I?

Question: A young woman is attending her mother's funeral. While there, she meets a man she has never seen before and falls in love immediately. After the funeral she tries to find him but cannot. Several days later she kills her sister.

Why does she kill her sister?