Logic Riddles

Question: I will reward you with riches if you show acts of consideration. However, if your acts are ominous, I reward retribution. What am I?

Question: You have 7 oranges on a plate, and there are 7 children. After you give 1 orange to each child, there is still 1 orange left on the plate. How is this possible? Source: www.puzzlevilla.com

Question: What listens, yet it tells?

Question: A man has 3 children and half of them are girls, how is this possible?

Question: There are 31 horses on a cliff, first they jump into the air, then they come down and stop, then they stand still.

Why do they do this?