Puffle's Riddles!

Hey guys! have you seen puffles riddles on the blog? :O No? I can't belive that! They are here, but click on the box here to comment them []
1. A man builds a house in a rectangular shape. All sides have southern exposure. A big, huge bear walks by the house. What color is the bear? Why?
2. How many birthdays does an average man have?
3. What unusual property do the words: Flour, Tern and Thirsty have in common?
4. A man is trapped on an island, surrounded by water and miles away from land. He cannot swim. Then suddenly one day he escapes. He uses no tools. How does he escape?
5. What type of phobia might a vampire have?
How tricky! :O
No wonder the poor kitties are puzzled xD
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