Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Andrew?

Tricky Puzzle Question

23 presents were opened by Andrew.
The last letter of Alex is X and it stands of the 24th number of the alphabets.
The last letter of Jonah is H and it stands of the 8th number of the alphabets.
The last letter of Clara is A and it stands of the 1st number of the alphabets.

Similarly W = 23