no
no.
is it possible to transplant a chimp brain into a human skull
Not currently. No areas of the brain are currently transplanted.
Any organ can be transplanted except the brain.
The cornea
No, not vital organs. Just kidneys and stuff like that. P.S. GO SLAPPY!
All organs have been successfully transplanted except the brain.
Just to clarify your question, if the organ cannot be transplanted there is no "recipient", since nobody receives the organ. The brain is not transplantable in humans. It has been performed in labs on animals, with mixed outcomes. However in humans it is unclear whether there are any medical conditions which would actually benefit from a 'brain transplant', let alone other ethical questions of performing such a procedure. The large intestine is not commonly transplanted because it is not necessary to sustain life (however it is medically possible). Likewise, the stomach, gall-bladder and appendix are not necessary for survival.
The brain is the only part of the body that cannot be successfully transplanted due to its complexity and the unique way it integrates with the rest of the body. Transplanting the brain would require transferring memories, consciousness, and individual identity, which is currently beyond medical capabilities.
No, the brain and the pancreas are the only organs that cannot be transplanted successfully.
Yes they can be transplanted.
Yes, livers can be transplanted.