Extra Credit Questions

[AussieMick]

My logic was that 5 is too low. So 10? No, still too low. So 20? No, I thought, that's too high.
Closer to 15 than 20, then? (I thought) ... hence my 16.

I think 9 is too low , so I'll say 16+6 ... 22

(My last guess ... may assist someone else)