A Siberian Tiger is a very strong predator that can bring down large prey. The sad thing is these tigers are endangered and not many still remain in the wild.
Strength is relative. It is a powerful animal, capable of taking down other animals twice its size. But in terms of measuring strength, you'd have to provide a comparison factor.
A Siberian tiger on average has the arm muscle strength comparable to that of five human males. This is because they have interlocking muscles that allow them to hit and squeeze very hard.
Siberian tigers are incredibly strong because of their need to hunt and kill prey in the regions they live in. While they may seem cuddly, a baby tiger is often guarded by parent tigers who are very protective and territorial.