23941

For room 1 I did different combonations to make 8 i did 5, 2 and 1 on the bottom was 2, 5 and 6 they added up to 13

for room 2 i tried different ways of making the target number use the number before to find the number was 9

for room 3 i worked out the lengh of the middle of the two circle... the anserw was 15

for room 4 it is 14 and for room 5 it is 19

his name is SIMON