**Sure you got it right.....**

**
Its 85......**

**
**

**
Probably your first thought was about 87!!!**

** But what I thought was about reverse mathematics....**

**
Subtracted the number from 100**

**
Now its going to get very tough....**

**
USE YOUR BRAINS WELL**

**CLUE:**

As my birthday approaches I start to collect leaves - a little bizarre perhaps, but I enjoy it! On the first day of the month I collect one leaf, on the second day I collect two and so on. So by my birthday I will have collected 276 leaves altogether. On which day of the month is my birthday?

**15**