Possibly.
boa
Possibly the sloth bear. The sloth bear has more muscles and the same weight as a bengal tiger, while the bengal tiger is a stronger hunter than a sloth bear. With a couple of swipes from the sloth bear's claws, it could kill a bengal tiger. Sloth bears usually kill tigers for territory and safety kill sun bears.
That would depend on the strength of the ten men, and the size of the polar bear.
in fact it can despite its small size
Yes. An amur tiger has enough strength to take down a big kodiak bear.
Probably a Reticulated python (Python reticulatus) - Adults of this species are quite capable of constricting and swallowing antelope.
Given the circumstances i would think it could. On the other hand given the circumstances a very large python may be able to kill a grizzly.
Likely the python.
No, a python can kill a moose with its bite. It can get infected.
boa
No.
Yes, even single mongoose can kill large python.
A large male sloth bear can kill a male bengal tiger and steal its territory. Sloth bears have been known to steal prey from tigers, dholes, and leopards. They can be very defensive and very territorial, and aggressive as the sun bear. The tiger would usually go behind the sloth bear for an ambush kill rather than face to face. A sun bear can possibly kill a bengal tiger since it is so aggressive and fierce along with those big claws and teeth. But it is more likely to scare and chase off the male bengal tiger.
A python kills by wrapping around its prey and squeezing it to death
Apollo shot Python with his golden bow.
kill it.
By squizing it