Logic Riddles

Question: A horse travels a certain distance each day. Strangely enough, two of its legs travel 30 miles each day and the other two legs travel nearly 31 miles. How is this situation possible?

Question: A man leaves his house in the morning and kisses his wife. On his way home from work he sees that somebody has hit a power line. He immediately knows his wife has died.

How did he know this?

Question: I give refuge to the blind and repeat everything they say.

What am I?

Question: Two people race for the title of leader. Bob won the race who is the new leader.

Question: What melts in a freezer?