Good Riddles

Question: And, here I am! Between sea and land! Connecting one to another Bringing two friends together! What am I?

Question: If a farmer has 5 chickens, two horses, and a wife.

How many feet are on his farm?

Question: What cannot be seen or felt, but can only be broken by voice?

Question: I come in varieties of color and am found almost year round. My house is tall and my only fear is the cold. What am I?

Question: What goes back and forth constantly, but never in a straight line?