and i'm totally confused because i'm not used to be doing these things!

Erm, it's just like a quiz to see wheather you can get the number, but i've spend 30 minutes trying to get it! I dare say you can get it!

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Think of a number!

1. Half of a number

2. When 4 is added, the result is 12

3. when doubled, the result is 22

4. When 5 is subtracted from it, the result is 3

5. When it is subtracted from 5, the result is 3

6. When squared, the result is 36

7. Add 7 to it, then multiply by 2. The result is 24

8. a quarter of it is 12.

9. The square route of it is 4

10. Add half of it to 11 to give 15