Logic Riddles

Question: When is a door not a door?

Question: An apple tree has apples on it. A storm comes through and there is no longer apples on the tree. But there isn't apples on the ground either.

How can this be so?

Question: A man built his house above a river between two trees. He attaches his house to the middle of the two tree's trunks. He does this because the river rises by 2 inches each years, but the trees grow 1 inch each year. If his house is 4 inches above the river how long will it take for water to hit his house?

Question: 7 frogs are sitting on a log. 1 of them decides to jump off of the log. At this moment how many frogs are on the log?

Question: Angel and Dory were found on the ground gasping for air surrounded by glass and water. The person who found them quickly got a glass of water for them and they were fine.

What happened to Angel and Dory?