Problem
First name
Kieran and Adam
School
Gems
Country
Age
11
We found out that the answer is 16 because you drill through the first section and then the middle section and finally the third section.This equals 12. If you drill through the top it won't work because it already has a hole in.
Then you drill through the middle 4 times to get 4 . Then you add 12 and 4 to get 16 .