Nine Magic Numbers Quiz Puzzle

Below are nine "magic numbers" for you to find:

1. A number whose double is bigger than its half by 99.
2. A number that is twice its digits' product.
3. A number that is three times its digits' sum.
4. A number whose half is bigger than its third by its digits' sum.
5. A number that increases by 20% when its digits are reversed.
6. A number that can be squared by inserting two digits between its original two digits.
7. A number that differs from its reverse by its digits' product.
8. Three numbers where their digits' product is twice their digits' sum.
9. A number that increases by twelve when turned upside down.

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Answer at 9.00 on Monday