Question

Sheep * sheep = 16

Answer 1

Your missing value would be 13.
This is because:

√16 = 4 = Sheep
36 ÷ 4 = 9, √9 = 3 = Snake
3 × 4 = 12, 72 ÷ 12 = 6 = Cat
4 + 3 + 6 = 13

I hope this helps! Let me know if you would like further explanation :)