THE ULTIMATE GUIDE TO RIDDLE

Query: What operates but by no means walks, contains a bed but by no means sleeps, a mouth that in no way speaks, along with a head that never ever weeps?c) The lacking variety is 17. Every single number inside the circle will be the sum in the numbers in the other quadrant. In such cases, the numbers are 8 and 9 — added together would make 17.In