Find the missing number (?) to complete the matrix: | 9 | 15 | 21 | | 8 | 17 | 26 | | ? | 43 | 35 |

Study the given pattern carefully and select the number that can replace the question mark (?) in it. 15 37 ? 11 32 3532 50 98

What value should replace 'Z' in the following logical number sequencing? 2 3 4 7 6 5 8 7 1 3 0 Z 5 4 3